---
_id: '1700'
abstract:
- lang: eng
text: We use the dual boson approach to reveal the phase diagram of the Fermi-Hubbard
model with long-range dipole-dipole interactions. By using a large-scale finite-temperature
calculation on a 64×64 square lattice we demonstrate the existence of a novel
phase, possessing an "ultralong-range" order. The fingerprint of this
phase - the density correlation function - features a nontrivial behavior on a
scale of tens of lattice sites. We study the properties and the stability of the
ultralong-range-ordered phase, and show that it is accessible in modern experiments
with ultracold polar molecules and magnetic atoms.
acknowledgement: The work is supported by European Research Council (ERC) Advanced
Grant No. 338957 FEMTO/NANO.
article_number: '081106'
article_processing_charge: No
arxiv: 1
author:
- first_name: Erik
full_name: Van Loon, Erik
last_name: Van Loon
- first_name: Mikhail
full_name: Katsnelson, Mikhail
last_name: Katsnelson
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Van Loon E, Katsnelson M, Lemeshko M. Ultralong-range order in the Fermi-Hubbard
model with long-range interactions. Physical Review B. 2015;92(8). doi:10.1103/PhysRevB.92.081106
apa: Van Loon, E., Katsnelson, M., & Lemeshko, M. (2015). Ultralong-range order
in the Fermi-Hubbard model with long-range interactions. Physical Review B.
American Physical Society. https://doi.org/10.1103/PhysRevB.92.081106
chicago: Van Loon, Erik, Mikhail Katsnelson, and Mikhail Lemeshko. “Ultralong-Range
Order in the Fermi-Hubbard Model with Long-Range Interactions.” Physical Review
B. American Physical Society, 2015. https://doi.org/10.1103/PhysRevB.92.081106.
ieee: E. Van Loon, M. Katsnelson, and M. Lemeshko, “Ultralong-range order in the
Fermi-Hubbard model with long-range interactions,” Physical Review B, vol.
92, no. 8. American Physical Society, 2015.
ista: Van Loon E, Katsnelson M, Lemeshko M. 2015. Ultralong-range order in the Fermi-Hubbard
model with long-range interactions. Physical Review B. 92(8), 081106.
mla: Van Loon, Erik, et al. “Ultralong-Range Order in the Fermi-Hubbard Model with
Long-Range Interactions.” Physical Review B, vol. 92, no. 8, 081106, American
Physical Society, 2015, doi:10.1103/PhysRevB.92.081106.
short: E. Van Loon, M. Katsnelson, M. Lemeshko, Physical Review B 92 (2015).
corr_author: '1'
date_created: 2018-12-11T11:53:32Z
date_published: 2015-08-10T00:00:00Z
date_updated: 2025-09-29T10:59:26Z
day: '10'
department:
- _id: MiLe
doi: 10.1103/PhysRevB.92.081106
external_id:
arxiv:
- '1506.06007'
isi:
- '000359344700002'
intvolume: ' 92'
isi: 1
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1506.06007
month: '08'
oa: 1
oa_version: Preprint
publication: Physical Review B
publication_status: published
publisher: American Physical Society
publist_id: '5441'
scopus_import: '1'
status: public
title: Ultralong-range order in the Fermi-Hubbard model with long-range interactions
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 92
year: '2015'
...
---
_id: '1701'
abstract:
- lang: eng
text: 'The activity of a neural network is defined by patterns of spiking and silence
from the individual neurons. Because spikes are (relatively) sparse, patterns
of activity with increasing numbers of spikes are less probable, but, with more
spikes, the number of possible patterns increases. This tradeoff between probability
and numerosity is mathematically equivalent to the relationship between entropy
and energy in statistical physics. We construct this relationship for populations
of up to N = 160 neurons in a small patch of the vertebrate retina, using a combination
of direct and model-based analyses of experiments on the response of this network
to naturalistic movies. We see signs of a thermodynamic limit, where the entropy
per neuron approaches a smooth function of the energy per neuron as N increases.
The form of this function corresponds to the distribution of activity being poised
near an unusual kind of critical point. We suggest further tests of criticality,
and give a brief discussion of its functional significance. '
acknowledgement: "Research was supported in part by National Science Foundation Grants
PHY-1305525, PHY-1451171, and CCF-0939370, by National Institutes of Health Grant
R01 EY14196, and by Austrian Science Foundation Grant FWF P25651. Additional support
was provided by the\r\nFannie and John Hertz Foundation, by the Swartz Foundation,
by the W. M. Keck Foundation, and by the Simons Foundation."
article_processing_charge: No
author:
- first_name: Gasper
full_name: Tkacik, Gasper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkacik
orcid: 0000-0002-6699-1455
- first_name: Thierry
full_name: Mora, Thierry
last_name: Mora
- first_name: Olivier
full_name: Marre, Olivier
last_name: Marre
- first_name: Dario
full_name: Amodei, Dario
last_name: Amodei
- first_name: Stephanie
full_name: Palmer, Stephanie
last_name: Palmer
- first_name: Michael
full_name: Berry Ii, Michael
last_name: Berry Ii
- first_name: William
full_name: Bialek, William
last_name: Bialek
citation:
ama: Tkačik G, Mora T, Marre O, et al. Thermodynamics and signatures of criticality
in a network of neurons. PNAS. 2015;112(37):11508-11513. doi:10.1073/pnas.1514188112
apa: Tkačik, G., Mora, T., Marre, O., Amodei, D., Palmer, S., Berry Ii, M., &
Bialek, W. (2015). Thermodynamics and signatures of criticality in a network of
neurons. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.1514188112
chicago: Tkačik, Gašper, Thierry Mora, Olivier Marre, Dario Amodei, Stephanie Palmer,
Michael Berry Ii, and William Bialek. “Thermodynamics and Signatures of Criticality
in a Network of Neurons.” PNAS. National Academy of Sciences, 2015. https://doi.org/10.1073/pnas.1514188112.
ieee: G. Tkačik et al., “Thermodynamics and signatures of criticality in
a network of neurons,” PNAS, vol. 112, no. 37. National Academy of Sciences,
pp. 11508–11513, 2015.
ista: Tkačik G, Mora T, Marre O, Amodei D, Palmer S, Berry Ii M, Bialek W. 2015.
Thermodynamics and signatures of criticality in a network of neurons. PNAS. 112(37),
11508–11513.
mla: Tkačik, Gašper, et al. “Thermodynamics and Signatures of Criticality in a Network
of Neurons.” PNAS, vol. 112, no. 37, National Academy of Sciences, 2015,
pp. 11508–13, doi:10.1073/pnas.1514188112.
short: G. Tkačik, T. Mora, O. Marre, D. Amodei, S. Palmer, M. Berry Ii, W. Bialek,
PNAS 112 (2015) 11508–11513.
date_created: 2018-12-11T11:53:33Z
date_published: 2015-09-15T00:00:00Z
date_updated: 2025-09-23T14:54:27Z
day: '15'
department:
- _id: GaTk
doi: 10.1073/pnas.1514188112
external_id:
isi:
- '000361393700038'
pmid:
- '26330611'
intvolume: ' 112'
isi: 1
issue: '37'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4577210/
month: '09'
oa: 1
oa_version: Submitted Version
page: 11508 - 11513
pmid: 1
project:
- _id: 254D1A94-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 25651-N26
name: Sensitivity to higher-order statistics in natural scenes
publication: PNAS
publication_status: published
publisher: National Academy of Sciences
publist_id: '5440'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Thermodynamics and signatures of criticality in a network of neurons
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 112
year: '2015'
...
---
_id: '1703'
abstract:
- lang: eng
text: Vegetation clearing and land-use change have depleted many natural plant communities
to the point where restoration is required. A major impediment to the success
of rebuilding complex vegetation communities is having regular access to sufficient
quantities of high-quality seed. Seed-production areas (SPAs) can help generate
this seed, but these must be underpinned by a broad genetic base to maximise the
evolutionary potential of restored populations. However, genetic bottlenecks can
occur at the collection, establishment and production stages in SPAs, requiring
genetic evaluation. This is especially relevant for species that may take many
years before a return on SPA investment is realised. Two recently established
yellow box (Eucalyptus melliodora A.Cunn. ex Schauer, Myrtaceae) SPAs were evaluated
to determine whether genetic bottlenecks had occurred between seed collection
and SPA establishment. No evidence was found to suggest that a significant loss
of genetic diversity had occurred at this stage, although there was a significant
difference in diversity between the two SPAs. Complex population genetic structure
was also observed in the seed used to source the SPAs, with up to eight groups
identified. Plant survival in the SPAs was influenced by seed collection location
but not by SPA location and was not associated with genetic diversity. There were
also no associations between genetic diversity and plant growth. These data highlighted
the importance of chance events when establishing SPAs and indicated that the
two yellow box SPAs are likely to provide genetically diverse seed sources for
future restoration projects, especially by pooling seed from both SPAs.
article_processing_charge: No
author:
- first_name: Linda
full_name: Broadhurst, Linda
last_name: Broadhurst
- first_name: Graham
full_name: Fifield, Graham
last_name: Fifield
- first_name: Bindi
full_name: Vanzella, Bindi
last_name: Vanzella
- first_name: Melinda
full_name: Pickup, Melinda
id: 2C78037E-F248-11E8-B48F-1D18A9856A87
last_name: Pickup
orcid: 0000-0001-6118-0541
citation:
ama: Broadhurst L, Fifield G, Vanzella B, Pickup M. An evaluation of the genetic
structure of seed sources and the maintenance of genetic diversity during establishment
of two yellow box (Eucalyptus melliodora) seed-production areas. Australian
Journal of Botany. 2015;63(5):455-466. doi:10.1071/BT15023
apa: Broadhurst, L., Fifield, G., Vanzella, B., & Pickup, M. (2015). An evaluation
of the genetic structure of seed sources and the maintenance of genetic diversity
during establishment of two yellow box (Eucalyptus melliodora) seed-production
areas. Australian Journal of Botany. CSIRO. https://doi.org/10.1071/BT15023
chicago: Broadhurst, Linda, Graham Fifield, Bindi Vanzella, and Melinda Pickup.
“An Evaluation of the Genetic Structure of Seed Sources and the Maintenance of
Genetic Diversity during Establishment of Two Yellow Box (Eucalyptus Melliodora)
Seed-Production Areas.” Australian Journal of Botany. CSIRO, 2015. https://doi.org/10.1071/BT15023.
ieee: L. Broadhurst, G. Fifield, B. Vanzella, and M. Pickup, “An evaluation of the
genetic structure of seed sources and the maintenance of genetic diversity during
establishment of two yellow box (Eucalyptus melliodora) seed-production areas,”
Australian Journal of Botany, vol. 63, no. 5. CSIRO, pp. 455–466, 2015.
ista: Broadhurst L, Fifield G, Vanzella B, Pickup M. 2015. An evaluation of the
genetic structure of seed sources and the maintenance of genetic diversity during
establishment of two yellow box (Eucalyptus melliodora) seed-production areas.
Australian Journal of Botany. 63(5), 455–466.
mla: Broadhurst, Linda, et al. “An Evaluation of the Genetic Structure of Seed Sources
and the Maintenance of Genetic Diversity during Establishment of Two Yellow Box
(Eucalyptus Melliodora) Seed-Production Areas.” Australian Journal of Botany,
vol. 63, no. 5, CSIRO, 2015, pp. 455–66, doi:10.1071/BT15023.
short: L. Broadhurst, G. Fifield, B. Vanzella, M. Pickup, Australian Journal of
Botany 63 (2015) 455–466.
date_created: 2018-12-11T11:53:34Z
date_published: 2015-05-26T00:00:00Z
date_updated: 2025-09-23T07:51:07Z
day: '26'
department:
- _id: NiBa
doi: 10.1071/BT15023
external_id:
isi:
- '000363276500009'
intvolume: ' 63'
isi: 1
issue: '5'
language:
- iso: eng
month: '05'
oa_version: None
page: 455 - 466
publication: Australian Journal of Botany
publication_status: published
publisher: CSIRO
publist_id: '5434'
quality_controlled: '1'
scopus_import: '1'
status: public
title: An evaluation of the genetic structure of seed sources and the maintenance
of genetic diversity during establishment of two yellow box (Eucalyptus melliodora)
seed-production areas
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 63
year: '2015'
...
---
_id: '1704'
abstract:
- lang: eng
text: Given a convex function (Formula presented.) and two hermitian matrices A
and B, Lewin and Sabin study in (Lett Math Phys 104:691–705, 2014) the relative
entropy defined by (Formula presented.). Among other things, they prove that the
so-defined quantity is monotone if and only if (Formula presented.) is operator
monotone. The monotonicity is then used to properly define (Formula presented.)
for bounded self-adjoint operators acting on an infinite-dimensional Hilbert space
by a limiting procedure. More precisely, for an increasing sequence of finite-dimensional
projections (Formula presented.) with (Formula presented.) strongly, the limit
(Formula presented.) is shown to exist and to be independent of the sequence of
projections (Formula presented.). The question whether this sequence converges
to its "obvious" limit, namely (Formula presented.), has been left open.
We answer this question in principle affirmatively and show that (Formula presented.).
If the operators A and B are regular enough, that is (A − B), (Formula presented.)
and (Formula presented.) are trace-class, the identity (Formula presented.) holds.
article_processing_charge: No
arxiv: 1
author:
- first_name: Andreas
full_name: Deuchert, Andreas
last_name: Deuchert
orcid: 0000-0003-3146-6746
- first_name: Christian
full_name: Hainzl, Christian
last_name: Hainzl
- first_name: Robert
full_name: Seiringer, Robert
id: 4AFD0470-F248-11E8-B48F-1D18A9856A87
last_name: Seiringer
orcid: 0000-0002-6781-0521
citation:
ama: Deuchert A, Hainzl C, Seiringer R. Note on a family of monotone quantum relative
entropies. Letters in Mathematical Physics. 2015;105(10):1449-1466. doi:10.1007/s11005-015-0787-5
apa: Deuchert, A., Hainzl, C., & Seiringer, R. (2015). Note on a family of monotone
quantum relative entropies. Letters in Mathematical Physics. Springer.
https://doi.org/10.1007/s11005-015-0787-5
chicago: Deuchert, Andreas, Christian Hainzl, and Robert Seiringer. “Note on a Family
of Monotone Quantum Relative Entropies.” Letters in Mathematical Physics.
Springer, 2015. https://doi.org/10.1007/s11005-015-0787-5.
ieee: A. Deuchert, C. Hainzl, and R. Seiringer, “Note on a family of monotone quantum
relative entropies,” Letters in Mathematical Physics, vol. 105, no. 10.
Springer, pp. 1449–1466, 2015.
ista: Deuchert A, Hainzl C, Seiringer R. 2015. Note on a family of monotone quantum
relative entropies. Letters in Mathematical Physics. 105(10), 1449–1466.
mla: Deuchert, Andreas, et al. “Note on a Family of Monotone Quantum Relative Entropies.”
Letters in Mathematical Physics, vol. 105, no. 10, Springer, 2015, pp.
1449–66, doi:10.1007/s11005-015-0787-5.
short: A. Deuchert, C. Hainzl, R. Seiringer, Letters in Mathematical Physics 105
(2015) 1449–1466.
corr_author: '1'
date_created: 2018-12-11T11:53:34Z
date_published: 2015-08-05T00:00:00Z
date_updated: 2025-09-23T09:41:03Z
day: '05'
ddc:
- '510'
department:
- _id: RoSe
doi: 10.1007/s11005-015-0787-5
external_id:
arxiv:
- '1502.07205'
isi:
- '000361007600006'
file:
- access_level: open_access
checksum: fd7307282a314cc1fbbaef77b187516b
content_type: application/pdf
creator: dernst
date_created: 2019-01-15T14:42:07Z
date_updated: 2020-07-14T12:45:13Z
file_id: '5836'
file_name: 2015_LettersMathPhys_Deuchert.pdf
file_size: 484967
relation: main_file
file_date_updated: 2020-07-14T12:45:13Z
has_accepted_license: '1'
intvolume: ' 105'
isi: 1
issue: '10'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/4.0/
month: '08'
oa: 1
oa_version: Preprint
page: 1449 - 1466
publication: Letters in Mathematical Physics
publication_status: published
publisher: Springer
publist_id: '5432'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Note on a family of monotone quantum relative entropies
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
short: CC BY-NC (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 105
year: '2015'
...
---
_id: '1706'
abstract:
- lang: eng
text: We consider a problem of learning kernels for use in SVM classification in
the multi-task and lifelong scenarios and provide generalization bounds on the
error of a large margin classifier. Our results show that, under mild conditions
on the family of kernels used for learning, solving several related tasks simultaneously
is beneficial over single task learning. In particular, as the number of observed
tasks grows, assuming that in the considered family of kernels there exists one
that yields low approximation error on all tasks, the overhead associated with
learning such a kernel vanishes and the complexity converges to that of learning
when this good kernel is given to the learner.
alternative_title:
- LNCS
article_processing_charge: No
arxiv: 1
author:
- first_name: Anastasia
full_name: Pentina, Anastasia
id: 42E87FC6-F248-11E8-B48F-1D18A9856A87
last_name: Pentina
- first_name: Shai
full_name: Ben David, Shai
last_name: Ben David
citation:
ama: 'Pentina A, Ben David S. Multi-task and lifelong learning of kernels. In: Vol
9355. Springer; 2015:194-208. doi:10.1007/978-3-319-24486-0_13'
apa: 'Pentina, A., & Ben David, S. (2015). Multi-task and lifelong learning
of kernels (Vol. 9355, pp. 194–208). Presented at the ALT: Algorithmic Learning
Theory, Banff, AB, Canada: Springer. https://doi.org/10.1007/978-3-319-24486-0_13'
chicago: Pentina, Anastasia, and Shai Ben David. “Multi-Task and Lifelong Learning
of Kernels,” 9355:194–208. Springer, 2015. https://doi.org/10.1007/978-3-319-24486-0_13.
ieee: 'A. Pentina and S. Ben David, “Multi-task and lifelong learning of kernels,”
presented at the ALT: Algorithmic Learning Theory, Banff, AB, Canada, 2015, vol.
9355, pp. 194–208.'
ista: 'Pentina A, Ben David S. 2015. Multi-task and lifelong learning of kernels.
ALT: Algorithmic Learning Theory, LNCS, vol. 9355, 194–208.'
mla: Pentina, Anastasia, and Shai Ben David. Multi-Task and Lifelong Learning
of Kernels. Vol. 9355, Springer, 2015, pp. 194–208, doi:10.1007/978-3-319-24486-0_13.
short: A. Pentina, S. Ben David, in:, Springer, 2015, pp. 194–208.
conference:
end_date: 2015-10-06
location: Banff, AB, Canada
name: 'ALT: Algorithmic Learning Theory'
start_date: 2015-10-04
corr_author: '1'
date_created: 2018-12-11T11:53:35Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2025-09-23T09:36:51Z
day: '01'
department:
- _id: ChLa
doi: 10.1007/978-3-319-24486-0_13
ec_funded: 1
external_id:
arxiv:
- '1602.06531'
isi:
- '000367595100013'
intvolume: ' 9355'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1602.06531
month: '01'
oa: 1
oa_version: Preprint
page: 194 - 208
project:
- _id: 2532554C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '308036'
name: Lifelong Learning of Visual Scene Understanding
publication_status: published
publisher: Springer
publist_id: '5430'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multi-task and lifelong learning of kernels
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 9355
year: '2015'
...
---
_id: '1710'
abstract:
- lang: eng
text: 'We consider the hollow on the half-plane {(x, y) : y ≤ 0} ⊂ ℝ2 defined by
a function u : (-1, 1) → ℝ, u(x) < 0, and a vertical flow of point particles
incident on the hollow. It is assumed that u satisfies the so-called single impact
condition (SIC): each incident particle is elastically reflected by graph(u) and
goes away without hitting the graph of u anymore. We solve the problem: find the
function u minimizing the force of resistance created by the flow. We show that
the graph of the minimizer is formed by two arcs of parabolas symmetric to each
other with respect to the y-axis. Assuming that the resistance of u ≡ 0 equals
1, we show that the minimal resistance equals π/2 - 2arctan(1/2) ≈ 0.6435. This
result completes the previously obtained result [SIAM J. Math. Anal., 46 (2014),
pp. 2730-2742] stating in particular that the minimal resistance of a hollow in
higher dimensions equals 0.5. We additionally consider a similar problem of minimal
resistance, where the hollow in the half-space {(x1,...,xd,y) : y ≤ 0} ⊂ ℝd+1
is defined by a radial function U satisfying the SIC, U(x) = u(|x|), with x =
(x1,...,xd), u(ξ) < 0 for 0 ≤ ξ < 1, and u(ξ) = 0 for ξ ≥ 1, and the flow
is parallel to the y-axis. The minimal resistance is greater than 0.5 (and coincides
with 0.6435 when d = 1) and converges to 0.5 as d → ∞.'
article_processing_charge: No
arxiv: 1
author:
- first_name: Arseniy
full_name: Akopyan, Arseniy
id: 430D2C90-F248-11E8-B48F-1D18A9856A87
last_name: Akopyan
orcid: 0000-0002-2548-617X
- first_name: Alexander
full_name: Plakhov, Alexander
last_name: Plakhov
citation:
ama: Akopyan A, Plakhov A. Minimal resistance of curves under the single impact
assumption. Society for Industrial and Applied Mathematics. 2015;47(4):2754-2769.
doi:10.1137/140993843
apa: Akopyan, A., & Plakhov, A. (2015). Minimal resistance of curves under the
single impact assumption. Society for Industrial and Applied Mathematics.
SIAM. https://doi.org/10.1137/140993843
chicago: Akopyan, Arseniy, and Alexander Plakhov. “Minimal Resistance of Curves
under the Single Impact Assumption.” Society for Industrial and Applied Mathematics.
SIAM, 2015. https://doi.org/10.1137/140993843.
ieee: A. Akopyan and A. Plakhov, “Minimal resistance of curves under the single
impact assumption,” Society for Industrial and Applied Mathematics, vol.
47, no. 4. SIAM, pp. 2754–2769, 2015.
ista: Akopyan A, Plakhov A. 2015. Minimal resistance of curves under the single
impact assumption. Society for Industrial and Applied Mathematics. 47(4), 2754–2769.
mla: Akopyan, Arseniy, and Alexander Plakhov. “Minimal Resistance of Curves under
the Single Impact Assumption.” Society for Industrial and Applied Mathematics,
vol. 47, no. 4, SIAM, 2015, pp. 2754–69, doi:10.1137/140993843.
short: A. Akopyan, A. Plakhov, Society for Industrial and Applied Mathematics 47
(2015) 2754–2769.
date_created: 2018-12-11T11:53:36Z
date_published: 2015-07-14T00:00:00Z
date_updated: 2025-09-23T09:35:36Z
day: '14'
department:
- _id: HeEd
doi: 10.1137/140993843
ec_funded: 1
external_id:
arxiv:
- '1410.3736'
isi:
- '000360691500009'
intvolume: ' 47'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1410.3736
month: '07'
oa: 1
oa_version: Preprint
page: 2754 - 2769
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Society for Industrial and Applied Mathematics
publication_status: published
publisher: SIAM
publist_id: '5423'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Minimal resistance of curves under the single impact assumption
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 47
year: '2015'
...
---
_id: '1712'
abstract:
- lang: eng
text: The majority of immune cells in Drosophila melanogaster are plasmatocytes;
they carry out similar functions to vertebrate macrophages, influencing development
as well as protecting against infection and cancer. Plasmatocytes, sometimes referred
to with the broader term of hemocytes, migrate widely during embryonic development
and cycle in the larvae between sessile and circulating positions. Here we discuss
the similarities of plasmatocyte developmental migration and its functions to
that of vertebrate macrophages, considering the recent controversy regarding the
functions of Drosophila PDGF/VEGF related ligands. We also examine recent findings
on the significance of adhesion for plasmatocyte migration in the embryo, as well
as proliferation, trans-differentiation, and tumor responses in the larva. We
spotlight parallels throughout to vertebrate immune responses.
article_processing_charge: No
author:
- first_name: Aparna
full_name: Ratheesh, Aparna
id: 2F064CFE-F248-11E8-B48F-1D18A9856A87
last_name: Ratheesh
orcid: 0000-0001-7190-0776
- first_name: Vera
full_name: Belyaeva, Vera
id: 47F080FE-F248-11E8-B48F-1D18A9856A87
last_name: Belyaeva
- first_name: Daria E
full_name: Siekhaus, Daria E
id: 3D224B9E-F248-11E8-B48F-1D18A9856A87
last_name: Siekhaus
orcid: 0000-0001-8323-8353
citation:
ama: Ratheesh A, Belyaeva V, Siekhaus DE. Drosophila immune cell migration and adhesion
during embryonic development and larval immune responses. Current Opinion in
Cell Biology. 2015;36(10):71-79. doi:10.1016/j.ceb.2015.07.003
apa: Ratheesh, A., Belyaeva, V., & Siekhaus, D. E. (2015). Drosophila immune
cell migration and adhesion during embryonic development and larval immune responses.
Current Opinion in Cell Biology. Elsevier. https://doi.org/10.1016/j.ceb.2015.07.003
chicago: Ratheesh, Aparna, Vera Belyaeva, and Daria E Siekhaus. “Drosophila Immune
Cell Migration and Adhesion during Embryonic Development and Larval Immune Responses.”
Current Opinion in Cell Biology. Elsevier, 2015. https://doi.org/10.1016/j.ceb.2015.07.003.
ieee: A. Ratheesh, V. Belyaeva, and D. E. Siekhaus, “Drosophila immune cell migration
and adhesion during embryonic development and larval immune responses,” Current
Opinion in Cell Biology, vol. 36, no. 10. Elsevier, pp. 71–79, 2015.
ista: Ratheesh A, Belyaeva V, Siekhaus DE. 2015. Drosophila immune cell migration
and adhesion during embryonic development and larval immune responses. Current
Opinion in Cell Biology. 36(10), 71–79.
mla: Ratheesh, Aparna, et al. “Drosophila Immune Cell Migration and Adhesion during
Embryonic Development and Larval Immune Responses.” Current Opinion in Cell
Biology, vol. 36, no. 10, Elsevier, 2015, pp. 71–79, doi:10.1016/j.ceb.2015.07.003.
short: A. Ratheesh, V. Belyaeva, D.E. Siekhaus, Current Opinion in Cell Biology
36 (2015) 71–79.
corr_author: '1'
date_created: 2018-12-11T11:53:36Z
date_published: 2015-10-01T00:00:00Z
date_updated: 2025-09-23T08:29:26Z
day: '01'
ddc:
- '573'
department:
- _id: DaSi
doi: 10.1016/j.ceb.2015.07.003
ec_funded: 1
external_id:
isi:
- '000364577600011'
file:
- access_level: open_access
checksum: bbb1ee39ca52929aefe4f48752b166ee
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:14:44Z
date_updated: 2020-07-14T12:45:13Z
file_id: '5098'
file_name: IST-2015-346-v1+1_Current_Opinion_Review_Ratheesh_et_al_2015.pdf
file_size: 1023680
relation: main_file
file_date_updated: 2020-07-14T12:45:13Z
has_accepted_license: '1'
intvolume: ' 36'
isi: 1
issue: '10'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '10'
oa: 1
oa_version: Published Version
page: 71 - 79
project:
- _id: 2536F660-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '334077'
name: Investigating the role of transporters in invasive migration through junctions
publication: Current Opinion in Cell Biology
publication_status: published
publisher: Elsevier
publist_id: '5421'
pubrep_id: '346'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Drosophila immune cell migration and adhesion during embryonic development
and larval immune responses
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 36
year: '2015'
...
---
_id: '1728'
abstract:
- lang: eng
text: 'In the vertebrate neural tube, the morphogen Sonic Hedgehog (Shh) establishes
a characteristic pattern of gene expression. Here we quantify the Shh gradient
in the developing mouse neural tube and show that while the amplitude of the gradient
increases over time, the activity of the pathway transcriptional effectors, Gli
proteins, initially increases but later decreases. Computational analysis of the
pathway suggests three mechanisms that could contribute to this adaptation: transcriptional
upregulation of the inhibitory receptor Ptch1, transcriptional downregulation
of Gli and the differential stability of active and inactive Gli isoforms. Consistent
with this, Gli2 protein expression is downregulated during neural tube patterning
and adaptation continues when the pathway is stimulated downstream of Ptch1. Moreover,
the Shh-induced upregulation of Gli2 transcription prevents Gli activity levels
from adapting in a different cell type, NIH3T3 fibroblasts, despite the upregulation
of Ptch1. Multiple mechanisms therefore contribute to the intracellular dynamics
of Shh signalling, resulting in different signalling dynamics in different cell
types.'
acknowledgement: C.P.B. gratefully acknowledges funding from the Wellcome Trust through
a Research Career Development Fellowship (097319/Z/11/Z). This work was supported
by the Medical Research Council (U117560541) and Wellcome Trust (WT098326MA, WT098325MA).
author:
- first_name: Michael
full_name: Cohen, Michael H
last_name: Cohen
- first_name: Anna
full_name: Anna Kicheva
id: 3959A2A0-F248-11E8-B48F-1D18A9856A87
last_name: Kicheva
orcid: 0000-0003-4509-4998
- first_name: Ana
full_name: Ribeiro, Ana C
last_name: Ribeiro
- first_name: Robert
full_name: Blassberg, Robert A
last_name: Blassberg
- first_name: Karen
full_name: Page, Karen M
last_name: Page
- first_name: Chris
full_name: Barnes, Chris P
last_name: Barnes
- first_name: James
full_name: Briscoe, James
last_name: Briscoe
citation:
ama: Cohen M, Kicheva A, Ribeiro A, et al. Ptch1 and Gli regulate Shh signalling
dynamics via multiple mechanisms. Nature Communications. 2015;6. doi:10.1038/ncomms7709
apa: Cohen, M., Kicheva, A., Ribeiro, A., Blassberg, R., Page, K., Barnes, C., &
Briscoe, J. (2015). Ptch1 and Gli regulate Shh signalling dynamics via multiple
mechanisms. Nature Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms7709
chicago: Cohen, Michael, Anna Kicheva, Ana Ribeiro, Robert Blassberg, Karen Page,
Chris Barnes, and James Briscoe. “Ptch1 and Gli Regulate Shh Signalling Dynamics
via Multiple Mechanisms.” Nature Communications. Nature Publishing Group,
2015. https://doi.org/10.1038/ncomms7709.
ieee: M. Cohen et al., “Ptch1 and Gli regulate Shh signalling dynamics via
multiple mechanisms,” Nature Communications, vol. 6. Nature Publishing
Group, 2015.
ista: Cohen M, Kicheva A, Ribeiro A, Blassberg R, Page K, Barnes C, Briscoe J. 2015.
Ptch1 and Gli regulate Shh signalling dynamics via multiple mechanisms. Nature
Communications. 6.
mla: Cohen, Michael, et al. “Ptch1 and Gli Regulate Shh Signalling Dynamics via
Multiple Mechanisms.” Nature Communications, vol. 6, Nature Publishing
Group, 2015, doi:10.1038/ncomms7709.
short: M. Cohen, A. Kicheva, A. Ribeiro, R. Blassberg, K. Page, C. Barnes, J. Briscoe,
Nature Communications 6 (2015).
date_created: 2018-12-11T11:53:42Z
date_published: 2015-04-02T00:00:00Z
date_updated: 2021-01-12T06:52:48Z
day: '02'
doi: 10.1038/ncomms7709
extern: 1
intvolume: ' 6'
license: https://creativecommons.org/licenses/by/4.0/
month: '04'
publication: Nature Communications
publication_status: published
publisher: Nature Publishing Group
publist_id: '5399'
quality_controlled: 0
status: public
title: Ptch1 and Gli regulate Shh signalling dynamics via multiple mechanisms
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
volume: 6
year: '2015'
...
---
_id: '1730'
abstract:
- lang: eng
text: How much cutting is needed to simplify the topology of a surface? We provide
bounds for several instances of this question, for the minimum length of topologically
non-trivial closed curves, pants decompositions, and cut graphs with a given combinatorial
map in triangulated combinatorial surfaces (or their dual cross-metric counterpart).
Our work builds upon Riemannian systolic inequalities, which bound the minimum
length of non-trivial closed curves in terms of the genus and the area of the
surface. We first describe a systematic way to translate Riemannian systolic inequalities
to a discrete setting, and vice-versa. This implies a conjecture by Przytycka
and Przytycki (Graph structure theory. Contemporary Mathematics, vol. 147, 1993),
a number of new systolic inequalities in the discrete setting, and the fact that
a theorem of Hutchinson on the edge-width of triangulated surfaces and Gromov’s
systolic inequality for surfaces are essentially equivalent. We also discuss how
these proofs generalize to higher dimensions. Then we focus on topological decompositions
of surfaces. Relying on ideas of Buser, we prove the existence of pants decompositions
of length O(g^(3/2)n^(1/2)) for any triangulated combinatorial surface of genus
g with n triangles, and describe an O(gn)-time algorithm to compute such a decomposition.
Finally, we consider the problem of embedding a cut graph (or more generally a
cellular graph) with a given combinatorial map on a given surface. Using random
triangulations, we prove (essentially) that, for any choice of a combinatorial
map, there are some surfaces on which any cellular embedding with that combinatorial
map has length superlinear in the number of triangles of the triangulated combinatorial
surface. There is also a similar result for graphs embedded on polyhedral triangulations.
article_processing_charge: No
arxiv: 1
author:
- first_name: Éric
full_name: Colin De Verdière, Éric
last_name: Colin De Verdière
- first_name: Alfredo
full_name: Hubard, Alfredo
last_name: Hubard
- first_name: Arnaud N
full_name: De Mesmay, Arnaud N
id: 3DB2F25C-F248-11E8-B48F-1D18A9856A87
last_name: De Mesmay
citation:
ama: Colin De Verdière É, Hubard A, de Mesmay AN. Discrete systolic inequalities
and decompositions of triangulated surfaces. Discrete & Computational Geometry.
2015;53(3):587-620. doi:10.1007/s00454-015-9679-9
apa: Colin De Verdière, É., Hubard, A., & de Mesmay, A. N. (2015). Discrete
systolic inequalities and decompositions of triangulated surfaces. Discrete
& Computational Geometry. Springer. https://doi.org/10.1007/s00454-015-9679-9
chicago: Colin De Verdière, Éric, Alfredo Hubard, and Arnaud N de Mesmay. “Discrete
Systolic Inequalities and Decompositions of Triangulated Surfaces.” Discrete
& Computational Geometry. Springer, 2015. https://doi.org/10.1007/s00454-015-9679-9.
ieee: É. Colin De Verdière, A. Hubard, and A. N. de Mesmay, “Discrete systolic inequalities
and decompositions of triangulated surfaces,” Discrete & Computational
Geometry, vol. 53, no. 3. Springer, pp. 587–620, 2015.
ista: Colin De Verdière É, Hubard A, de Mesmay AN. 2015. Discrete systolic inequalities
and decompositions of triangulated surfaces. Discrete & Computational Geometry.
53(3), 587–620.
mla: Colin De Verdière, Éric, et al. “Discrete Systolic Inequalities and Decompositions
of Triangulated Surfaces.” Discrete & Computational Geometry, vol.
53, no. 3, Springer, 2015, pp. 587–620, doi:10.1007/s00454-015-9679-9.
short: É. Colin De Verdière, A. Hubard, A.N. de Mesmay, Discrete & Computational
Geometry 53 (2015) 587–620.
date_created: 2018-12-11T11:53:42Z
date_published: 2015-04-02T00:00:00Z
date_updated: 2025-09-23T08:27:38Z
day: '02'
department:
- _id: UlWa
doi: 10.1007/s00454-015-9679-9
external_id:
arxiv:
- '1408.4036'
isi:
- '000353895200006'
intvolume: ' 53'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1408.4036
month: '04'
oa: 1
oa_version: Preprint
page: 587 - 620
publication: Discrete & Computational Geometry
publication_status: published
publisher: Springer
publist_id: '5397'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Discrete systolic inequalities and decompositions of triangulated surfaces
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 53
year: '2015'
...
---
_id: '1731'
abstract:
- lang: eng
text: 'We consider two-player zero-sum games on graphs. These games can be classified
on the basis of the information of the players and on the mode of interaction
between them. On the basis of information the classification is as follows: (a)
partial-observation (both players have partial view of the game); (b) one-sided
complete-observation (one player has complete observation); and (c) complete-observation
(both players have complete view of the game). On the basis of mode of interaction
we have the following classification: (a) concurrent (both players interact simultaneously);
and (b) turn-based (both players interact in turn). The two sources of randomness
in these games are randomness in transition function and randomness in strategies.
In general, randomized strategies are more powerful than deterministic strategies,
and randomness in transitions gives more general classes of games. In this work
we present a complete characterization for the classes of games where randomness
is not helpful in: (a) the transition function probabilistic transition can be
simulated by deterministic transition); and (b) strategies (pure strategies are
as powerful as randomized strategies). As consequence of our characterization
we obtain new undecidability results for these games. '
article_processing_charge: No
arxiv: 1
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Laurent
full_name: Doyen, Laurent
last_name: Doyen
- first_name: Hugo
full_name: Gimbert, Hugo
last_name: Gimbert
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
citation:
ama: Chatterjee K, Doyen L, Gimbert H, Henzinger TA. Randomness for free. Information
and Computation. 2015;245(12):3-16. doi:10.1016/j.ic.2015.06.003
apa: Chatterjee, K., Doyen, L., Gimbert, H., & Henzinger, T. A. (2015). Randomness
for free. Information and Computation. Elsevier. https://doi.org/10.1016/j.ic.2015.06.003
chicago: Chatterjee, Krishnendu, Laurent Doyen, Hugo Gimbert, and Thomas A Henzinger.
“Randomness for Free.” Information and Computation. Elsevier, 2015. https://doi.org/10.1016/j.ic.2015.06.003.
ieee: K. Chatterjee, L. Doyen, H. Gimbert, and T. A. Henzinger, “Randomness for
free,” Information and Computation, vol. 245, no. 12. Elsevier, pp. 3–16,
2015.
ista: Chatterjee K, Doyen L, Gimbert H, Henzinger TA. 2015. Randomness for free.
Information and Computation. 245(12), 3–16.
mla: Chatterjee, Krishnendu, et al. “Randomness for Free.” Information and Computation,
vol. 245, no. 12, Elsevier, 2015, pp. 3–16, doi:10.1016/j.ic.2015.06.003.
short: K. Chatterjee, L. Doyen, H. Gimbert, T.A. Henzinger, Information and Computation
245 (2015) 3–16.
corr_author: '1'
date_created: 2018-12-11T11:53:42Z
date_published: 2015-12-01T00:00:00Z
date_updated: 2025-09-23T10:32:00Z
day: '01'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1016/j.ic.2015.06.003
ec_funded: 1
external_id:
arxiv:
- '1006.0673'
isi:
- '000368899100002'
intvolume: ' 245'
isi: 1
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1006.0673
month: '12'
oa: 1
oa_version: Preprint
page: 3 - 16
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
name: Microsoft Research Faculty Fellowship
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '267989'
name: Quantitative Reactive Modeling
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '215543'
name: COMponent-Based Embedded Systems design Techniques
- _id: 25F1337C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '214373'
name: Design for Embedded Systems
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
publication: Information and Computation
publication_status: published
publisher: Elsevier
publist_id: '5395'
quality_controlled: '1'
related_material:
record:
- id: '3856'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Randomness for free
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 245
year: '2015'
...
---
_id: '1732'
abstract:
- lang: eng
text: We consider partially observable Markov decision processes (POMDPs), that
are a standard framework for robotics applications to model uncertainties present
in the real world, with temporal logic specifications. All temporal logic specifications
in linear-time temporal logic (LTL) can be expressed as parity objectives. We
study the qualitative analysis problem for POMDPs with parity objectives that
asks whether there is a controller (policy) to ensure that the objective holds
with probability 1 (almost-surely). While the qualitative analysis of POMDPs with
parity objectives is undecidable, recent results show that when restricted to
finite-memory policies the problem is EXPTIME-complete. While the problem is intractable
in theory, we present a practical approach to solve the qualitative analysis problem.
We designed several heuristics to deal with the exponential complexity, and have
used our implementation on a number of well-known POMDP examples for robotics
applications. Our results provide the first practical approach to solve the qualitative
analysis of robot motion planning with LTL properties in the presence of uncertainty.
arxiv: 1
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Martin
full_name: Chmelik, Martin
id: 3624234E-F248-11E8-B48F-1D18A9856A87
last_name: Chmelik
- first_name: Raghav
full_name: Gupta, Raghav
last_name: Gupta
- first_name: Ayush
full_name: Kanodia, Ayush
last_name: Kanodia
citation:
ama: 'Chatterjee K, Chmelik M, Gupta R, Kanodia A. Qualitative analysis of POMDPs
with temporal logic specifications for robotics applications. In: IEEE; 2015:325-330.
doi:10.1109/ICRA.2015.7139019'
apa: 'Chatterjee, K., Chmelik, M., Gupta, R., & Kanodia, A. (2015). Qualitative
analysis of POMDPs with temporal logic specifications for robotics applications
(pp. 325–330). Presented at the ICRA: International Conference on Robotics and
Automation, Seattle, WA, United States: IEEE. https://doi.org/10.1109/ICRA.2015.7139019'
chicago: Chatterjee, Krishnendu, Martin Chmelik, Raghav Gupta, and Ayush Kanodia.
“Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics
Applications,” 325–30. IEEE, 2015. https://doi.org/10.1109/ICRA.2015.7139019.
ieee: 'K. Chatterjee, M. Chmelik, R. Gupta, and A. Kanodia, “Qualitative analysis
of POMDPs with temporal logic specifications for robotics applications,” presented
at the ICRA: International Conference on Robotics and Automation, Seattle, WA,
United States, 2015, pp. 325–330.'
ista: 'Chatterjee K, Chmelik M, Gupta R, Kanodia A. 2015. Qualitative analysis of
POMDPs with temporal logic specifications for robotics applications. ICRA: International
Conference on Robotics and Automation, 325–330.'
mla: Chatterjee, Krishnendu, et al. Qualitative Analysis of POMDPs with Temporal
Logic Specifications for Robotics Applications. IEEE, 2015, pp. 325–30, doi:10.1109/ICRA.2015.7139019.
short: K. Chatterjee, M. Chmelik, R. Gupta, A. Kanodia, in:, IEEE, 2015, pp. 325–330.
conference:
end_date: 2015-05-30
location: Seattle, WA, United States
name: 'ICRA: International Conference on Robotics and Automation'
start_date: 2015-05-26
date_created: 2018-12-11T11:53:43Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2023-02-23T12:25:52Z
day: '01'
department:
- _id: KrCh
doi: 10.1109/ICRA.2015.7139019
ec_funded: 1
external_id:
arxiv:
- '1409.3360'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1409.3360
month: '01'
oa: 1
oa_version: Preprint
page: 325 - 330
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
publication_status: published
publisher: IEEE
publist_id: '5394'
quality_controlled: '1'
related_material:
record:
- id: '5424'
relation: earlier_version
status: public
- id: '5426'
relation: earlier_version
status: public
scopus_import: 1
status: public
title: Qualitative analysis of POMDPs with temporal logic specifications for robotics
applications
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '1734'
abstract:
- lang: eng
text: Facial appearance capture is now firmly established within academic research
and used extensively across various application domains, perhaps most prominently
in the entertainment industry through the design of virtual characters in video
games and films. While significant progress has occurred over the last two decades,
no single survey currently exists that discusses the similarities, differences,
and practical considerations of the available appearance capture techniques as
applied to human faces. A central difficulty of facial appearance capture is the
way light interacts with skin-which has a complex multi-layered structure-and
the interactions that occur below the skin surface can, by definition, only be
observed indirectly. In this report, we distinguish between two broad strategies
for dealing with this complexity. "Image-based methods" try to exhaustively
capture the exact face appearance under different lighting and viewing conditions,
and then render the face through weighted image combinations. "Parametric
methods" instead fit the captured reflectance data to some parametric appearance
model used during rendering, allowing for a more lightweight and flexible representation
but at the cost of potentially increased rendering complexity or inexact reproduction.
The goal of this report is to provide an overview that can guide practitioners
and researchers in assessing the tradeoffs between current approaches and identifying
directions for future advances in facial appearance capture.
article_processing_charge: No
author:
- first_name: Oliver
full_name: Klehm, Oliver
last_name: Klehm
- first_name: Fabrice
full_name: Rousselle, Fabrice
last_name: Rousselle
- first_name: Marios
full_name: Papas, Marios
last_name: Papas
- first_name: Derek
full_name: Bradley, Derek
last_name: Bradley
- first_name: Christophe
full_name: Hery, Christophe
last_name: Hery
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
- first_name: Wojciech
full_name: Jarosz, Wojciech
last_name: Jarosz
- first_name: Thabo
full_name: Beeler, Thabo
last_name: Beeler
citation:
ama: Klehm O, Rousselle F, Papas M, et al. Recent advances in facial appearance
capture. Computer Graphics Forum. 2015;34(2):709-733. doi:10.1111/cgf.12594
apa: Klehm, O., Rousselle, F., Papas, M., Bradley, D., Hery, C., Bickel, B., … Beeler,
T. (2015). Recent advances in facial appearance capture. Computer Graphics
Forum. Wiley-Blackwell. https://doi.org/10.1111/cgf.12594
chicago: Klehm, Oliver, Fabrice Rousselle, Marios Papas, Derek Bradley, Christophe
Hery, Bernd Bickel, Wojciech Jarosz, and Thabo Beeler. “Recent Advances in Facial
Appearance Capture.” Computer Graphics Forum. Wiley-Blackwell, 2015. https://doi.org/10.1111/cgf.12594.
ieee: O. Klehm et al., “Recent advances in facial appearance capture,” Computer
Graphics Forum, vol. 34, no. 2. Wiley-Blackwell, pp. 709–733, 2015.
ista: Klehm O, Rousselle F, Papas M, Bradley D, Hery C, Bickel B, Jarosz W, Beeler
T. 2015. Recent advances in facial appearance capture. Computer Graphics Forum.
34(2), 709–733.
mla: Klehm, Oliver, et al. “Recent Advances in Facial Appearance Capture.” Computer
Graphics Forum, vol. 34, no. 2, Wiley-Blackwell, 2015, pp. 709–33, doi:10.1111/cgf.12594.
short: O. Klehm, F. Rousselle, M. Papas, D. Bradley, C. Hery, B. Bickel, W. Jarosz,
T. Beeler, Computer Graphics Forum 34 (2015) 709–733.
date_created: 2018-12-11T11:53:43Z
date_published: 2015-05-01T00:00:00Z
date_updated: 2025-09-23T10:32:38Z
day: '01'
department:
- _id: BeBi
doi: 10.1111/cgf.12594
external_id:
isi:
- '000358326600063'
intvolume: ' 34'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- url: https://graphics.ethz.ch/~mpapas/publications/fac_star.pdf
month: '05'
oa_version: None
page: 709 - 733
publication: Computer Graphics Forum
publication_status: published
publisher: Wiley-Blackwell
publist_id: '5391'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Recent advances in facial appearance capture
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 34
year: '2015'
...
---
_id: '1735'
abstract:
- lang: eng
text: This work presents a method for efficiently simplifying the pressure projection
step in a liquid simulation. We first devise a straightforward dimension reduction
technique that dramatically reduces the cost of solving the pressure projection.
Next, we introduce a novel change of basis that satisfies free-surface boundary
conditions exactly, regardless of the accuracy of the pressure solve. When combined,
these ideas greatly reduce the computational complexity of the pressure solve
without compromising free surface boundary conditions at the highest level of
detail. Our techniques are easy to parallelize, and they effectively eliminate
the computational bottleneck for large liquid simulations.
acknowledgement: The first author was supported by a JSPS Postdoctoral Fellowship
for Research Abroad
article_processing_charge: No
author:
- first_name: Ryoichi
full_name: Ando, Ryoichi
last_name: Ando
- first_name: Nils
full_name: Thürey, Nils
last_name: Thürey
- first_name: Christopher J
full_name: Wojtan, Christopher J
id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87
last_name: Wojtan
orcid: 0000-0001-6646-5546
citation:
ama: Ando R, Thürey N, Wojtan C. A dimension-reduced pressure solver for liquid
simulations. Computer Graphics Forum. 2015;34(2):473-480. doi:10.1111/cgf.12576
apa: Ando, R., Thürey, N., & Wojtan, C. (2015). A dimension-reduced pressure
solver for liquid simulations. Computer Graphics Forum. Wiley. https://doi.org/10.1111/cgf.12576
chicago: Ando, Ryoichi, Nils Thürey, and Chris Wojtan. “A Dimension-Reduced Pressure
Solver for Liquid Simulations.” Computer Graphics Forum. Wiley, 2015. https://doi.org/10.1111/cgf.12576.
ieee: R. Ando, N. Thürey, and C. Wojtan, “A dimension-reduced pressure solver for
liquid simulations,” Computer Graphics Forum, vol. 34, no. 2. Wiley, pp.
473–480, 2015.
ista: Ando R, Thürey N, Wojtan C. 2015. A dimension-reduced pressure solver for
liquid simulations. Computer Graphics Forum. 34(2), 473–480.
mla: Ando, Ryoichi, et al. “A Dimension-Reduced Pressure Solver for Liquid Simulations.”
Computer Graphics Forum, vol. 34, no. 2, Wiley, 2015, pp. 473–80, doi:10.1111/cgf.12576.
short: R. Ando, N. Thürey, C. Wojtan, Computer Graphics Forum 34 (2015) 473–480.
date_created: 2018-12-11T11:53:44Z
date_published: 2015-05-01T00:00:00Z
date_updated: 2025-09-22T14:29:19Z
day: '01'
ddc:
- '000'
department:
- _id: ChWo
doi: 10.1111/cgf.12576
external_id:
isi:
- '000358326600045'
file:
- access_level: open_access
checksum: 590752bf977855b337a80f78a9bc2404
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:16:30Z
date_updated: 2020-07-14T12:45:15Z
file_id: '5218'
file_name: IST-2016-607-v1+1_coarsegrid.pdf
file_size: 6312352
relation: main_file
file_date_updated: 2020-07-14T12:45:15Z
has_accepted_license: '1'
intvolume: ' 34'
isi: 1
issue: '2'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Submitted Version
page: 473 - 480
publication: Computer Graphics Forum
publication_status: published
publisher: Wiley
publist_id: '5389'
pubrep_id: '607'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A dimension-reduced pressure solver for liquid simulations
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 34
year: '2015'
...
---
_id: '17615'
abstract:
- lang: eng
text: Graham et al. have detected a 5.2 yr periodic optical variability of the quasar
PG 1302-102 at redshift z = 0.3, which they interpret as the redshifted orbital
period (1 + z)tbin of a putative supermassive black hole binary (SMBHB). Here,
we consider the implications of a 3–8 times shorter orbital period, suggested
by hydrodynamical simulations of circumbinary discs (CBDs) with nearly equal-mass
SMBHBs (q ≡ M2/M1 ≳ 0.3). With the corresponding 2–4 times tighter binary separation,
PG 1302 would be undergoing gravitational wave dominated inspiral, and serve as
a proof that the BHs can be fuelled and produce bright emission even in this late
stage of the merger. The expected fraction of binaries with the shorter tbin,
among bright quasars, would be reduced by one to two orders of magnitude, compared
to the 5.2 yr period, in better agreement with the rarity of candidates reported
by Graham et al. Finally, shorter periods would imply higher binary speeds, possibly
imprinting periodicity on the light curves from relativistic beaming, as well
as measurable relativistic effects on the Fe K α line. The CBD model predicts
additional periodic variability on time-scales of tbin and ≈0.5tbin, as well as
periodic variation of broad line widths and offsets relative to the narrow lines,
which are consistent with the observations. Future observations will be able to
test these predictions and hence the binary+CBD hypothesis for PG 1302.
article_processing_charge: No
article_type: original
author:
- first_name: D. J.
full_name: D'Orazio, D. J.
last_name: D'Orazio
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: P.
full_name: Duffell, P.
last_name: Duffell
- first_name: B. D.
full_name: Farris, B. D.
last_name: Farris
- first_name: A. I.
full_name: MacFadyen, A. I.
last_name: MacFadyen
citation:
ama: D’Orazio DJ, Haiman Z, Duffell P, Farris BD, MacFadyen AI. A reduced orbital
period for the supermassive black hole binary candidate in the quasar PG 1302-102?
Monthly Notices of the Royal Astronomical Society. 2015;452(3):2540-2545.
doi:10.1093/mnras/stv1457
apa: D’Orazio, D. J., Haiman, Z., Duffell, P., Farris, B. D., & MacFadyen, A.
I. (2015). A reduced orbital period for the supermassive black hole binary candidate
in the quasar PG 1302-102? Monthly Notices of the Royal Astronomical Society.
Oxford University Press. https://doi.org/10.1093/mnras/stv1457
chicago: D’Orazio, D. J., Zoltán Haiman, P. Duffell, B. D. Farris, and A. I. MacFadyen.
“A Reduced Orbital Period for the Supermassive Black Hole Binary Candidate in
the Quasar PG 1302-102?” Monthly Notices of the Royal Astronomical Society.
Oxford University Press, 2015. https://doi.org/10.1093/mnras/stv1457.
ieee: D. J. D’Orazio, Z. Haiman, P. Duffell, B. D. Farris, and A. I. MacFadyen,
“A reduced orbital period for the supermassive black hole binary candidate in
the quasar PG 1302-102?,” Monthly Notices of the Royal Astronomical Society,
vol. 452, no. 3. Oxford University Press, pp. 2540–2545, 2015.
ista: D’Orazio DJ, Haiman Z, Duffell P, Farris BD, MacFadyen AI. 2015. A reduced
orbital period for the supermassive black hole binary candidate in the quasar
PG 1302-102? Monthly Notices of the Royal Astronomical Society. 452(3), 2540–2545.
mla: D’Orazio, D. J., et al. “A Reduced Orbital Period for the Supermassive Black
Hole Binary Candidate in the Quasar PG 1302-102?” Monthly Notices of the Royal
Astronomical Society, vol. 452, no. 3, Oxford University Press, 2015, pp.
2540–45, doi:10.1093/mnras/stv1457.
short: D.J. D’Orazio, Z. Haiman, P. Duffell, B.D. Farris, A.I. MacFadyen, Monthly
Notices of the Royal Astronomical Society 452 (2015) 2540–2545.
date_created: 2024-09-05T13:31:30Z
date_published: 2015-07-24T00:00:00Z
date_updated: 2024-09-24T07:58:52Z
day: '24'
doi: 10.1093/mnras/stv1457
extern: '1'
intvolume: ' 452'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stv1457
month: '07'
oa: 1
oa_version: Published Version
page: 2540-2545
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: A reduced orbital period for the supermassive black hole binary candidate in
the quasar PG 1302-102?
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 452
year: '2015'
...
---
_id: '17622'
abstract:
- lang: eng
text: Graham et al. discovered a supermassive black hole binary (SMBHB) candidate
and identified the detected 5.2 yr period of the optical variability as the orbital
period of the binary. Hydrodynamical simulations predict multiple periodic components
for the variability of SMBHBs, thus raising the possibility that the true period
of the binary is different from 5.2 yr. We analyse the periodogram of PG1302 and
find no compelling evidence for additional peaks. We also point out that, despite
the 5.2 yr peak being significant if a single source is considered, further analysis
is required to account for the fact that PG1302 was selected among a large sample
of 247 000 quasars. We derive upper limits on any additional periodic modulations
in the available data, by modelling the light curve as the sum of stochastic noise
and the known 5.2 yr periodic component, and injecting additional sinusoidal signals.
We find that, with the current data, we would be able to detect with high significance
(false alarm probability <1 per cent) secondary periodic terms, with periods in
the range predicted by the simulations, if the amplitude of the variability was
at least ∼0.06 mag (compared to 0.14 mag for the main sinusoid). A three-year
follow-up monitoring campaign with weekly observations can increase the sensitivity
for detecting secondary peaks by ≈50 per cent, and would allow a more robust test
of predictions from hydrodynamical simulations.
article_processing_charge: No
article_type: original
author:
- first_name: M.
full_name: Charisi, M.
last_name: Charisi
- first_name: I.
full_name: Bartos, I.
last_name: Bartos
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: A. M.
full_name: Price-Whelan, A. M.
last_name: Price-Whelan
- first_name: S.
full_name: Márka, S.
last_name: Márka
citation:
ama: 'Charisi M, Bartos I, Haiman Z, Price-Whelan AM, Márka S. Multiple periods
in the variability of the supermassive black hole binary candidate quasar PG1302-102?
Monthly Notices of the Royal Astronomical Society: Letters. 2015;454(1):L21-L25.
doi:10.1093/mnrasl/slv111'
apa: 'Charisi, M., Bartos, I., Haiman, Z., Price-Whelan, A. M., & Márka, S.
(2015). Multiple periods in the variability of the supermassive black hole binary
candidate quasar PG1302-102? Monthly Notices of the Royal Astronomical Society:
Letters. Oxford University Press. https://doi.org/10.1093/mnrasl/slv111'
chicago: 'Charisi, M., I. Bartos, Zoltán Haiman, A. M. Price-Whelan, and S. Márka.
“Multiple Periods in the Variability of the Supermassive Black Hole Binary Candidate
Quasar PG1302-102?” Monthly Notices of the Royal Astronomical Society: Letters.
Oxford University Press, 2015. https://doi.org/10.1093/mnrasl/slv111.'
ieee: 'M. Charisi, I. Bartos, Z. Haiman, A. M. Price-Whelan, and S. Márka, “Multiple
periods in the variability of the supermassive black hole binary candidate quasar
PG1302-102?,” Monthly Notices of the Royal Astronomical Society: Letters,
vol. 454, no. 1. Oxford University Press, pp. L21–L25, 2015.'
ista: 'Charisi M, Bartos I, Haiman Z, Price-Whelan AM, Márka S. 2015. Multiple periods
in the variability of the supermassive black hole binary candidate quasar PG1302-102?
Monthly Notices of the Royal Astronomical Society: Letters. 454(1), L21–L25.'
mla: 'Charisi, M., et al. “Multiple Periods in the Variability of the Supermassive
Black Hole Binary Candidate Quasar PG1302-102?” Monthly Notices of the Royal
Astronomical Society: Letters, vol. 454, no. 1, Oxford University Press, 2015,
pp. L21–25, doi:10.1093/mnrasl/slv111.'
short: 'M. Charisi, I. Bartos, Z. Haiman, A.M. Price-Whelan, S. Márka, Monthly Notices
of the Royal Astronomical Society: Letters 454 (2015) L21–L25.'
date_created: 2024-09-05T13:51:39Z
date_published: 2015-09-11T00:00:00Z
date_updated: 2024-09-24T08:34:12Z
day: '11'
doi: 10.1093/mnrasl/slv111
extern: '1'
intvolume: ' 454'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnrasl/slv111
month: '09'
oa: 1
oa_version: Published Version
page: L21-L25
publication: 'Monthly Notices of the Royal Astronomical Society: Letters'
publication_identifier:
issn:
- 1745-3933
- 1745-3925
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multiple periods in the variability of the supermassive black hole binary candidate
quasar PG1302-102?
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 454
year: '2015'
...
---
_id: '17641'
abstract:
- lang: eng
text: 'In order to elucidate the origin of spin in both dark matter and baryons
in galaxies, we have performed hydrodynamical simulations from cosmological initial
conditions. We study atomic cooling haloes in the redshift range 100>z>9 with
masses of order 109M⊙ at redshift z=10. We assume that the gas has primordial
composition and that H2-cooling and prior star-formation in the haloes have been
suppressed. We present a comprehensive analysis of the gas and dark matter properties
of four halos with very low (λ≈0.01), low (λ≈0.04), high (λ≈0.06) and very high
(λ≈0.1) spin parameter. Our main conclusion is that the spin orientation and magnitude
is initially well described by tidal torque linear theory, but later on is determined
by the merging and accretion history of each halo. We provide evidence that the
topology of the merging region, i.e. the number of colliding filaments, gives
an accurate prediction for the spin of dark matter and gas: halos at the center
of knots will have low spin while those in the center of filaments will have high
spin. The spin of a halo is given by λ≈0.05×(7.6/numberoffilaments)^5.1'
article_processing_charge: No
article_type: original
author:
- first_name: Joaquin
full_name: Prieto, Joaquin
last_name: Prieto
- first_name: Raul
full_name: Jimenez, Raul
last_name: Jimenez
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Roberto E.
full_name: González, Roberto E.
last_name: González
citation:
ama: 'Prieto J, Jimenez R, Haiman Z, González RE. The origin of spin in galaxies:
Clues from simulations of atomic cooling haloes. Monthly Notices of the Royal
Astronomical Society. 2015;452(1):784-802. doi:10.1093/mnras/stv1234'
apa: 'Prieto, J., Jimenez, R., Haiman, Z., & González, R. E. (2015). The origin
of spin in galaxies: Clues from simulations of atomic cooling haloes. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stv1234'
chicago: 'Prieto, Joaquin, Raul Jimenez, Zoltán Haiman, and Roberto E. González.
“The Origin of Spin in Galaxies: Clues from Simulations of Atomic Cooling Haloes.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2015. https://doi.org/10.1093/mnras/stv1234.'
ieee: 'J. Prieto, R. Jimenez, Z. Haiman, and R. E. González, “The origin of spin
in galaxies: Clues from simulations of atomic cooling haloes,” Monthly Notices
of the Royal Astronomical Society, vol. 452, no. 1. Oxford University Press,
pp. 784–802, 2015.'
ista: 'Prieto J, Jimenez R, Haiman Z, González RE. 2015. The origin of spin in galaxies:
Clues from simulations of atomic cooling haloes. Monthly Notices of the Royal
Astronomical Society. 452(1), 784–802.'
mla: 'Prieto, Joaquin, et al. “The Origin of Spin in Galaxies: Clues from Simulations
of Atomic Cooling Haloes.” Monthly Notices of the Royal Astronomical Society,
vol. 452, no. 1, Oxford University Press, 2015, pp. 784–802, doi:10.1093/mnras/stv1234.'
short: J. Prieto, R. Jimenez, Z. Haiman, R.E. González, Monthly Notices of the Royal
Astronomical Society 452 (2015) 784–802.
date_created: 2024-09-06T07:18:53Z
date_published: 2015-07-08T00:00:00Z
date_updated: 2024-09-24T11:52:00Z
day: '08'
doi: 10.1093/mnras/stv1234
extern: '1'
intvolume: ' 452'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stv1234
month: '07'
oa: 1
oa_version: Published Version
page: 784-802
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The origin of spin in galaxies: Clues from simulations of atomic cooling haloes'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 452
year: '2015'
...
---
_id: '17652'
abstract:
- lang: eng
text: Because most large galaxies contain a central black hole, and galaxies often
merge, black-hole binaries are expected to be common in galactic nuclei. Although
they cannot be imaged, periodicities in the light curves of quasars have been
interpreted as evidence for binaries, most recently in PG~1302-102, with a short
rest-frame optical period of 4 years. If the orbital period matches this value,
then for the range of estimated black hole masses the components would be separated
by 0.007-0.017 pc, implying relativistic orbital speeds. There has been much debate
over whether black hole orbits could be smaller than 1 pc. Here we show that the
amplitude and the sinusoid-like shape of the variability of PG~1302-102 can be
fit by relativistic Doppler boosting of emission from a compact, steadily accreting,
unequal-mass binary. We predict that brightness variations in the ultraviolet
light curve track those in the optical, but with a 2-3 times larger amplitude.
This prediction is relatively insensitive to the details of the emission process,
and is consistent with archival UV data. Follow-up UV and optical observations
in the next few years can test this prediction and confirm the existence of a
binary black hole in the relativistic regime.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Daniel J.
full_name: D'Orazio, Daniel J.
last_name: D'Orazio
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: David
full_name: Schiminovich, David
last_name: Schiminovich
citation:
ama: D’Orazio DJ, Haiman Z, Schiminovich D. Relativistic boost as the cause of periodicity
in a massive black-hole binary candidate. Nature. 2015;525(7569):351-353.
doi:10.1038/nature15262
apa: D’Orazio, D. J., Haiman, Z., & Schiminovich, D. (2015). Relativistic boost
as the cause of periodicity in a massive black-hole binary candidate. Nature.
Springer Science and Business Media LLC. https://doi.org/10.1038/nature15262
chicago: D’Orazio, Daniel J., Zoltán Haiman, and David Schiminovich. “Relativistic
Boost as the Cause of Periodicity in a Massive Black-Hole Binary Candidate.” Nature.
Springer Science and Business Media LLC, 2015. https://doi.org/10.1038/nature15262.
ieee: D. J. D’Orazio, Z. Haiman, and D. Schiminovich, “Relativistic boost as the
cause of periodicity in a massive black-hole binary candidate,” Nature,
vol. 525, no. 7569. Springer Science and Business Media LLC, pp. 351–353, 2015.
ista: D’Orazio DJ, Haiman Z, Schiminovich D. 2015. Relativistic boost as the cause
of periodicity in a massive black-hole binary candidate. Nature. 525(7569), 351–353.
mla: D’Orazio, Daniel J., et al. “Relativistic Boost as the Cause of Periodicity
in a Massive Black-Hole Binary Candidate.” Nature, vol. 525, no. 7569,
Springer Science and Business Media LLC, 2015, pp. 351–53, doi:10.1038/nature15262.
short: D.J. D’Orazio, Z. Haiman, D. Schiminovich, Nature 525 (2015) 351–353.
date_created: 2024-09-06T07:30:45Z
date_published: 2015-09-16T00:00:00Z
date_updated: 2024-09-24T13:22:24Z
day: '16'
doi: 10.1038/nature15262
extern: '1'
external_id:
arxiv:
- '1509.04301'
intvolume: ' 525'
issue: '7569'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1509.04301'
month: '09'
oa: 1
oa_version: Preprint
page: 351-353
publication: Nature
publication_identifier:
issn:
- 0028-0836
- 1476-4687
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
scopus_import: '1'
status: public
title: Relativistic boost as the cause of periodicity in a massive black-hole binary
candidate
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 525
year: '2015'
...
---
_id: '17663'
abstract:
- lang: eng
text: Recently, Planck measured a value of the cosmic microwave background (CMB)
optical depth due to electron scattering of τ=0.066±0.016. Here we show that this
low value leaves essentially no room for an early partial reionisation of the
intergalactic medium (IGM) by high-redshift Population III (Pop III) stars, expected
to have formed in low-mass minihaloes. We perform semi-analytic calculations of
reionisation which include the contribution from Pop II stars in atomic cooling
haloes, calibrated with high-redshift galaxy observations, and Pop III stars in
minihaloes with feedback due to Lyman-Werner (LW) radiation and metal enrichment.
We find that without LW feedback or prompt metal enrichment (and assuming a minihalo
escape fraction of 0.5) the Pop III star formation efficiency cannot exceed ∼a
few×10−4, without violating the constraints set by Planck data. This excludes
massive Pop III star formation in typical 106M⊙ minihaloes. Including LW feedback
and metal enrichment alleviates this tension, allowing large Pop III stars to
form early on before they are quenched by feedback. We find that the total density
of Pop III stars formed across cosmic time is ≲104−5 M⊙ Mpc−3 and does not depend
strongly on the feedback prescription adopted. Additionally, we perform a simple
estimate of the possible impact on reionisation of X-rays produced by accretion
onto black hole remnants of Pop III stars. We find that unless the accretion duty
cycle is very low (≲0.01), this could lead to an optical depth inconsistent with
Planck.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Eli
full_name: Visbal, Eli
last_name: Visbal
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Greg L.
full_name: Bryan, Greg L.
last_name: Bryan
citation:
ama: Visbal E, Haiman Z, Bryan GL. Limits on population III star formation in minihaloes
implied by Planck. Monthly Notices of the Royal Astronomical Society. 2015;453(4):4457-4467.
doi:10.1093/mnras/stv1941
apa: Visbal, E., Haiman, Z., & Bryan, G. L. (2015). Limits on population III
star formation in minihaloes implied by Planck. Monthly Notices of the Royal
Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stv1941
chicago: Visbal, Eli, Zoltán Haiman, and Greg L. Bryan. “Limits on Population III
Star Formation in Minihaloes Implied by Planck.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2015. https://doi.org/10.1093/mnras/stv1941.
ieee: E. Visbal, Z. Haiman, and G. L. Bryan, “Limits on population III star formation
in minihaloes implied by Planck,” Monthly Notices of the Royal Astronomical
Society, vol. 453, no. 4. Oxford University Press, pp. 4457–4467, 2015.
ista: Visbal E, Haiman Z, Bryan GL. 2015. Limits on population III star formation
in minihaloes implied by Planck. Monthly Notices of the Royal Astronomical Society.
453(4), 4457–4467.
mla: Visbal, Eli, et al. “Limits on Population III Star Formation in Minihaloes
Implied by Planck.” Monthly Notices of the Royal Astronomical Society,
vol. 453, no. 4, Oxford University Press, 2015, pp. 4457–67, doi:10.1093/mnras/stv1941.
short: E. Visbal, Z. Haiman, G.L. Bryan, Monthly Notices of the Royal Astronomical
Society 453 (2015) 4457–4467.
date_created: 2024-09-06T07:40:38Z
date_published: 2015-09-16T00:00:00Z
date_updated: 2024-09-25T07:32:20Z
day: '16'
doi: 10.1093/mnras/stv1941
extern: '1'
external_id:
arxiv:
- '1505.06359'
intvolume: ' 453'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1505.06359'
month: '09'
oa: 1
oa_version: Preprint
page: 4457-4467
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Limits on population III star formation in minihaloes implied by Planck
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 453
year: '2015'
...
---
_id: '17685'
abstract:
- lang: eng
text: We propose an observational test for gravitationally recoiling supermassive
black holes (BHs) in active galactic nuclei, based on a correlation between the
velocities of BHs relative to their host galaxies, |\Delta v|, and their obscuring
dust column densities, \Sigma_{dust} (both measured along the line of sight).
We use toy models for the distribution of recoil velocities, BH trajectories,
and the geometry of obscuring dust tori in galactic centres, to simulate 2.5x10^5
random observations of recoiling quasars. BHs with recoil velocities comparable
to the escape velocity from the galactic centre remain bound to the nucleus, and
do not fully settle back to the centre of the torus due to dynamical friction
in a typical quasar lifetime. We find that |\Delta v| and \Sigma_ {dust} for these
BHs are positively correlated. For obscured (\Sigma_{dust}>0) and for partially
obscured (0<\Sigma_{dust}<~2.3 g/m^2) quasars with |\Delta v|>=45 km/s, the sample
correlation coefficient between log10(|\Delta v|) and \Sigma_{dust} is r_{45}
= 0.28+/-0.02 and r_{45} = 0.13+/-0.02, respectively. Allowing for random +/-100
km/s errors in |\Delta v| unrelated to the recoil dilutes the correlation for
the partially obscured quasars to r_{45} = 0.026+/-0.004 measured between |\Delta
v| and \Sigma_{dust}. A random sample of >~3,500 obscured quasars with |\Delta
v|>=45 km/s would allow rejection of the no-correlation hypothesis with 3 sigma
significance 95% of the time. Finally, we find that the fraction of obscured quasars,
F_{obs}(|\Delta v|), decreases with |\Delta v| from F_{obs}(<10 km/s)>~0.8 to
F_{obs}(>10^3 km/s)<~0.4. This predicted trend can be compared to the observed
fraction of type II quasars, and can further test combinations of recoil, trajectory,
and dust torus models.
article_processing_charge: No
article_type: original
author:
- first_name: P.
full_name: Raffai, P.
last_name: Raffai
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Z.
full_name: Frei, Z.
last_name: Frei
citation:
ama: Raffai P, Haiman Z, Frei Z. A statistical method to search for recoiling supermassive
black holes in active galactic nuclei. Monthly Notices of the Royal Astronomical
Society. 2015;455(1):484-492. doi:10.1093/mnras/stv2371
apa: Raffai, P., Haiman, Z., & Frei, Z. (2015). A statistical method to search
for recoiling supermassive black holes in active galactic nuclei. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stv2371
chicago: Raffai, P., Zoltán Haiman, and Z. Frei. “A Statistical Method to Search
for Recoiling Supermassive Black Holes in Active Galactic Nuclei.” Monthly
Notices of the Royal Astronomical Society. Oxford University Press, 2015.
https://doi.org/10.1093/mnras/stv2371.
ieee: P. Raffai, Z. Haiman, and Z. Frei, “A statistical method to search for recoiling
supermassive black holes in active galactic nuclei,” Monthly Notices of the
Royal Astronomical Society, vol. 455, no. 1. Oxford University Press, pp.
484–492, 2015.
ista: Raffai P, Haiman Z, Frei Z. 2015. A statistical method to search for recoiling
supermassive black holes in active galactic nuclei. Monthly Notices of the Royal
Astronomical Society. 455(1), 484–492.
mla: Raffai, P., et al. “A Statistical Method to Search for Recoiling Supermassive
Black Holes in Active Galactic Nuclei.” Monthly Notices of the Royal Astronomical
Society, vol. 455, no. 1, Oxford University Press, 2015, pp. 484–92, doi:10.1093/mnras/stv2371.
short: P. Raffai, Z. Haiman, Z. Frei, Monthly Notices of the Royal Astronomical
Society 455 (2015) 484–492.
date_created: 2024-09-06T08:20:30Z
date_published: 2015-11-02T00:00:00Z
date_updated: 2024-09-25T09:18:47Z
day: '02'
doi: 10.1093/mnras/stv2371
extern: '1'
intvolume: ' 455'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stv2371
month: '11'
oa: 1
oa_version: Published Version
page: 484-492
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: A statistical method to search for recoiling supermassive black holes in active
galactic nuclei
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 455
year: '2015'
...
---
_id: '17694'
abstract:
- lang: eng
text: Constraining the properties of Population III (Pop III) stars will be very
challenging because they reside in small galaxies at high redshift which will
be difficult to directly detect. In this paper, we suggest that intensity mapping
may be a promising method to study Pop III stars. Intensity mapping is a technique
proposed to measure large-scale fluctuations of galaxy line emission in three
dimensions without resolving individual sources. This technique is well suited
for observing many faint galaxies because it can measure their cumulative emission
even if they cannot be directly detected. We focus on intensity mapping of He
ii recombination lines. These lines are much stronger in Pop III stars than Pop
II stars because the harder spectra of Pop III stars are expected to produce many
He ii ionizing photons. Measuring the He ii 1640 Å intensity mapping signal, along
with the signals from other lines such as Lyα, Hα, and metal lines, could give
constraints on the initial mass function (IMF) and star formation rate density
of Pop III stars as a function of redshift. To demonstrate the feasibility of
these observations, we estimate the strength of the Pop III He ii 1640 Å intensity
mapping signal from z = 10–20. We show that at z ≈ 10, the signal could be measured
accurately by two different hypothetical future instruments, one which cross-correlates
He ii 1640 Å with CO(1–0) line emission from galaxies and the other with 21 cm
emission from the intergalactic medium.
article_processing_charge: No
article_type: original
author:
- first_name: Eli
full_name: Visbal, Eli
last_name: Visbal
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Greg L.
full_name: Bryan, Greg L.
last_name: Bryan
citation:
ama: Visbal E, Haiman Z, Bryan GL. Looking for Population III stars with He ii line
intensity mapping. Monthly Notices of the Royal Astronomical Society. 2015;450(3):2506-2513.
doi:10.1093/mnras/stv785
apa: Visbal, E., Haiman, Z., & Bryan, G. L. (2015). Looking for Population III
stars with He ii line intensity mapping. Monthly Notices of the Royal Astronomical
Society. Oxford University Press. https://doi.org/10.1093/mnras/stv785
chicago: Visbal, Eli, Zoltán Haiman, and Greg L. Bryan. “Looking for Population
III Stars with He Ii Line Intensity Mapping.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2015. https://doi.org/10.1093/mnras/stv785.
ieee: E. Visbal, Z. Haiman, and G. L. Bryan, “Looking for Population III stars with
He ii line intensity mapping,” Monthly Notices of the Royal Astronomical Society,
vol. 450, no. 3. Oxford University Press, pp. 2506–2513, 2015.
ista: Visbal E, Haiman Z, Bryan GL. 2015. Looking for Population III stars with
He ii line intensity mapping. Monthly Notices of the Royal Astronomical Society.
450(3), 2506–2513.
mla: Visbal, Eli, et al. “Looking for Population III Stars with He Ii Line Intensity
Mapping.” Monthly Notices of the Royal Astronomical Society, vol. 450,
no. 3, Oxford University Press, 2015, pp. 2506–13, doi:10.1093/mnras/stv785.
short: E. Visbal, Z. Haiman, G.L. Bryan, Monthly Notices of the Royal Astronomical
Society 450 (2015) 2506–2513.
date_created: 2024-09-06T08:40:33Z
date_published: 2015-05-06T00:00:00Z
date_updated: 2024-09-25T10:05:24Z
day: '06'
doi: 10.1093/mnras/stv785
extern: '1'
intvolume: ' 450'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stv785
month: '05'
oa: 1
oa_version: Published Version
page: 2506-2513
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Looking for Population III stars with He ii line intensity mapping
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 450
year: '2015'
...