---
OA_place: publisher
OA_type: hybrid
_id: '19828'
abstract:
- lang: eng
text: 'We describe an optical method to directly measure the position-dependent
thermal diffusivity of reflective single crystal samples across a broad range
of temperatures for condensed matter physics research. Two laser beams are used,
one as a source to locally modulate the sample temperature, and the other as a
probe of sample reflectivity, which is a function of the modulated temperature.
Thermal diffusivity is obtained from the phase delay between source and probe
signals. We combine this technique with a microscope setup in an optical cryostat,
in which the sample is placed on a three-axis piezo-stage, allowing for spatially
resolved measurements. Furthermore, we demonstrate experimentally and mathematically
that isotropic in-plane diffusivity can be obtained when overlapping the two laser
beams instead of separating them in the traditional way, which further enhances
the spatial resolution to a micron scale, especially valuable when studying inhomogeneous
or multidomain samples. We discuss in detail the experimental conditions under
which this technique is valuable and demonstrate its performance on two stoichiometric
bilayer ruthenates: Sr3Ru2O7 and Ca3Ru2O7. The spatial resolution allowed us to
study the diffusivity in single domains of the latter, and we uncovered a temperature-dependent
in-plane diffusivity anisotropy. Finally, we used the enhanced spatial resolution
enabled by overlapping the two beams to measure the temperature-dependent diffusivity
of Ti-doped Ca3Ru2O7, which exhibits a metal–insulator transition. We observed
large variations of transition temperature over the same sample, originating from
doping inhomogeneity and pointing to the power of spatially resolved techniques
in accessing inherent properties.'
article_number: '043003'
article_processing_charge: Yes (in subscription journal)
article_type: original
arxiv: 1
author:
- first_name: F.
full_name: Sun, F.
last_name: Sun
- first_name: S.
full_name: Mishra, S.
last_name: Mishra
- first_name: P. H.
full_name: McGuinness, P. H.
last_name: McGuinness
- first_name: Z. H.
full_name: Filipiak, Z. H.
last_name: Filipiak
- first_name: I.
full_name: Marković, I.
last_name: Marković
- first_name: D. A.
full_name: Sokolov, D. A.
last_name: Sokolov
- first_name: N.
full_name: Kikugawa, N.
last_name: Kikugawa
- first_name: J. W.
full_name: Orenstein, J. W.
last_name: Orenstein
- first_name: S. A.
full_name: Hartnoll, S. A.
last_name: Hartnoll
- first_name: A. P.
full_name: Mackenzie, A. P.
last_name: Mackenzie
- first_name: Veronika
full_name: Sunko, Veronika
id: 23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3
last_name: Sunko
orcid: 0000-0003-2724-3523
citation:
ama: Sun F, Mishra S, McGuinness PH, et al. A spatially resolved optical method
to measure thermal diffusivity. Review of Scientific Instruments. 2023;94(4).
doi:10.1063/5.0098800
apa: Sun, F., Mishra, S., McGuinness, P. H., Filipiak, Z. H., Marković, I., Sokolov,
D. A., … Sunko, V. (2023). A spatially resolved optical method to measure thermal
diffusivity. Review of Scientific Instruments. AIP Publishing. https://doi.org/10.1063/5.0098800
chicago: Sun, F., S. Mishra, P. H. McGuinness, Z. H. Filipiak, I. Marković, D. A.
Sokolov, N. Kikugawa, et al. “A Spatially Resolved Optical Method to Measure Thermal
Diffusivity.” Review of Scientific Instruments. AIP Publishing, 2023. https://doi.org/10.1063/5.0098800.
ieee: F. Sun et al., “A spatially resolved optical method to measure thermal
diffusivity,” Review of Scientific Instruments, vol. 94, no. 4. AIP Publishing,
2023.
ista: Sun F, Mishra S, McGuinness PH, Filipiak ZH, Marković I, Sokolov DA, Kikugawa
N, Orenstein JW, Hartnoll SA, Mackenzie AP, Sunko V. 2023. A spatially resolved
optical method to measure thermal diffusivity. Review of Scientific Instruments.
94(4), 043003.
mla: Sun, F., et al. “A Spatially Resolved Optical Method to Measure Thermal Diffusivity.”
Review of Scientific Instruments, vol. 94, no. 4, 043003, AIP Publishing,
2023, doi:10.1063/5.0098800.
short: F. Sun, S. Mishra, P.H. McGuinness, Z.H. Filipiak, I. Marković, D.A. Sokolov,
N. Kikugawa, J.W. Orenstein, S.A. Hartnoll, A.P. Mackenzie, V. Sunko, Review of
Scientific Instruments 94 (2023).
date_created: 2025-06-10T09:23:29Z
date_published: 2023-04-10T00:00:00Z
date_updated: 2025-06-11T06:14:06Z
day: '10'
ddc:
- '530'
doi: 10.1063/5.0098800
extern: '1'
external_id:
arxiv:
- '2303.02017'
pmid:
- '38081228'
has_accepted_license: '1'
intvolume: ' 94'
issue: '4'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.1063/5.0098800
month: '04'
oa: 1
oa_version: Published Version
pmid: 1
publication: Review of Scientific Instruments
publication_identifier:
eissn:
- 1089-7623
issn:
- 0034-6748
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1063/5.0195810
scopus_import: '1'
status: public
title: A spatially resolved optical method to measure thermal diffusivity
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
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 94
year: '2023'
...
---
OA_place: repository
OA_type: green
_id: '19983'
abstract:
- lang: eng
text: 'The sinkless orientation problem plays a key role in understanding the foundations
of distributed computing. The problem can be used to separate two fundamental
models of distributed graph algorithms, LOCAL and SLOCAL: the locality of sinkless
orientation is Ω(log n) in the deterministic LOCAL model and O(log log n) in the
deterministic SLOCAL model. Both of these results are known by prior work, but
here we give new simple, self-contained proofs for them.'
acknowledgement: We thank the anonymous reviewers for their helpful feedback on previous
versions of this work. Parts ofthis work appeared in DISC 2021 as a brief announcement
[ 21]. This work was supported in part by theEuropean Research Council (ERC) under
the European Union’s Horizon 2020 research and innovationprogramme (grant agreement
No 805223 ScaleML), the Academy of Finland (grant agreement No 333837),the Austrian
Science Fund (FWF) and netIDEE (grant agreement No P 33775-N), and the AustrianScience
Fund (FWF) project DELTA (grant agreement No I 5025-N).
article_processing_charge: No
arxiv: 1
author:
- first_name: Alkida
full_name: Balliu, Alkida
last_name: Balliu
- first_name: Janne
full_name: Korhonen, Janne
id: C5402D42-15BC-11E9-A202-CA2BE6697425
last_name: Korhonen
- first_name: Fabian
full_name: Kuhn, Fabian
last_name: Kuhn
- first_name: Henrik
full_name: Lievonen, Henrik
last_name: Lievonen
- first_name: Dennis
full_name: Olivetti, Dennis
last_name: Olivetti
- first_name: Shreyas
full_name: Pai, Shreyas
last_name: Pai
- first_name: Ami
full_name: Paz, Ami
last_name: Paz
- first_name: Joel
full_name: Rybicki, Joel
id: 334EFD2E-F248-11E8-B48F-1D18A9856A87
last_name: Rybicki
orcid: 0000-0002-6432-6646
- first_name: Stefan
full_name: Schmid, Stefan
last_name: Schmid
- first_name: Jan
full_name: Studený, Jan
last_name: Studený
- first_name: Jukka
full_name: Suomela, Jukka
last_name: Suomela
- first_name: Jara
full_name: Uitto, Jara
last_name: Uitto
citation:
ama: 'Balliu A, Korhonen J, Kuhn F, et al. Sinkless Orientation Made Simple. In:
Symposium on Simplicity in Algorithms. 2023 Society for Industrial and
Applied Mathematics; 2023:175-191. doi:10.1137/1.9781611977585.ch17'
apa: 'Balliu, A., Korhonen, J., Kuhn, F., Lievonen, H., Olivetti, D., Pai, S., …
Uitto, J. (2023). Sinkless Orientation Made Simple. In Symposium on Simplicity
in Algorithms (pp. 175–191). Florence, Italy: 2023 Society for Industrial
and Applied Mathematics. https://doi.org/10.1137/1.9781611977585.ch17'
chicago: Balliu, Alkida, Janne Korhonen, Fabian Kuhn, Henrik Lievonen, Dennis Olivetti,
Shreyas Pai, Ami Paz, et al. “Sinkless Orientation Made Simple.” In Symposium
on Simplicity in Algorithms, 175–91. 2023 Society for Industrial and Applied
Mathematics, 2023. https://doi.org/10.1137/1.9781611977585.ch17.
ieee: A. Balliu et al., “Sinkless Orientation Made Simple,” in Symposium
on Simplicity in Algorithms, 2023 Society for Industrial and Applied Mathematics,
2023, pp. 175–191.
ista: 'Balliu A, Korhonen J, Kuhn F, Lievonen H, Olivetti D, Pai S, Paz A, Rybicki
J, Schmid S, Studený J, Suomela J, Uitto J. 2023.Sinkless Orientation Made Simple.
In: Symposium on Simplicity in Algorithms. , 175–191.'
mla: Balliu, Alkida, et al. “Sinkless Orientation Made Simple.” Symposium on
Simplicity in Algorithms, 2023 Society for Industrial and Applied Mathematics,
2023, pp. 175–91, doi:10.1137/1.9781611977585.ch17.
short: A. Balliu, J. Korhonen, F. Kuhn, H. Lievonen, D. Olivetti, S. Pai, A. Paz,
J. Rybicki, S. Schmid, J. Studený, J. Suomela, J. Uitto, in:, Symposium on Simplicity
in Algorithms, 2023 Society for Industrial and Applied Mathematics, 2023, pp.
175–191.
conference:
end_date: 2023-01-25
location: Florence, Italy
name: 'SOSA: Symposium on Simplicity in Algorithms'
start_date: 2023-01-23
date_created: 2025-07-10T13:11:47Z
date_published: 2023-01-12T00:00:00Z
date_updated: 2025-09-24T09:24:20Z
day: '12'
department:
- _id: DaAl
doi: 10.1137/1.9781611977585.ch17
ec_funded: 1
external_id:
arxiv:
- '2108.02655'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2108.02655
month: '01'
oa: 1
oa_version: Preprint
page: 175-191
project:
- _id: 268A44D6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '805223'
name: Elastic Coordination for Scalable Machine Learning
- _id: bd9e3a2e-d553-11ed-ba76-8aa684ce17fe
grant_number: P33775
name: Fast Algorithms for a Reactive Network Layer
publication: Symposium on Simplicity in Algorithms
publication_identifier:
eisbn:
- '9781611977585'
publication_status: published
publisher: 2023 Society for Industrial and Applied Mathematics
quality_controlled: '1'
status: public
title: Sinkless Orientation Made Simple
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
OA_type: closed access
_id: '19985'
abstract:
- lang: eng
text: We consider a natural problem dealing with weighted packet selection across
a rechargeable link, which e.g., finds applications in cryptocurrency networks.
The capacity of a link (u, v) is determined by how much nodes u and v allocate
for this link. Specifically, the input is a finite ordered sequence of packets
that arrive in both directions along a link. Given (u, v) and a packet of weight
x going from u to v, node u can either accept or reject the packet. If u accepts
the packet, the capacity on link (u, v) decreases by x. Correspondingly, v’s capacity
on (u, v) increases by x. If a node rejects the packet, this will entail a cost
affinely linear in the weight of the packet. A link is “rechargeable” in the sense
that the total capacity of the link has to remain constant, but the allocation
of capacity at the ends of the link can depend arbitrarily on the nodes’ decisions.
The goal is to minimise the sum of the capacity injected into the link and the
cost of rejecting packets. We show that the problem is NP-hard, but can be approximated
efficiently with a ratio of (1 + E) . (1 + square3) for some arbitrary E>0.
acknowledgement: We thank Mahsa Bastankhah and Mohammad Ali Maddah-Ali for fruitful
discussions about different variants of the problem. This work is supported by the
European Research Council (ERC) Consolidator Project 864228 (AdjustNet), 2020-2025,
the ERC CoG 863818 (ForM-SMArt), and the German Research Foundation (DFG) grant
470029389 (FlexNets), 2021–2024.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Stefan
full_name: Schmid, Stefan
last_name: Schmid
- first_name: Jakub
full_name: Svoboda, Jakub
id: 130759D2-D7DD-11E9-87D2-DE0DE6697425
last_name: Svoboda
orcid: 0000-0002-1419-3267
- first_name: Michelle X
full_name: Yeo, Michelle X
id: 2D82B818-F248-11E8-B48F-1D18A9856A87
last_name: Yeo
orcid: 0009-0001-3676-4809
citation:
ama: 'Schmid S, Svoboda J, Yeo MX. Weighted acket selection for rechargeable links
in cryptocurrency networks: Complexity and approximation. In: 30th International
Colloquium on Structural Information and Communication Complexity. Vol 13892.
Springer Nature; 2023:576-594. doi:10.1007/978-3-031-32733-9_26'
apa: 'Schmid, S., Svoboda, J., & Yeo, M. X. (2023). Weighted acket selection
for rechargeable links in cryptocurrency networks: Complexity and approximation.
In 30th International Colloquium on Structural Information and Communication
Complexity (Vol. 13892, pp. 576–594). Alcalá de Henares, Spain: Springer Nature.
https://doi.org/10.1007/978-3-031-32733-9_26'
chicago: 'Schmid, Stefan, Jakub Svoboda, and Michelle X Yeo. “Weighted Acket Selection
for Rechargeable Links in Cryptocurrency Networks: Complexity and Approximation.”
In 30th International Colloquium on Structural Information and Communication
Complexity, 13892:576–94. Springer Nature, 2023. https://doi.org/10.1007/978-3-031-32733-9_26.'
ieee: 'S. Schmid, J. Svoboda, and M. X. Yeo, “Weighted acket selection for rechargeable
links in cryptocurrency networks: Complexity and approximation,” in 30th International
Colloquium on Structural Information and Communication Complexity, Alcalá
de Henares, Spain, 2023, vol. 13892, pp. 576–594.'
ista: 'Schmid S, Svoboda J, Yeo MX. 2023. Weighted acket selection for rechargeable
links in cryptocurrency networks: Complexity and approximation. 30th International
Colloquium on Structural Information and Communication Complexity. SIROCCO: International
Colloquium on Structural Information and Communication Complexity, LNCS, vol.
13892, 576–594.'
mla: 'Schmid, Stefan, et al. “Weighted Acket Selection for Rechargeable Links in Cryptocurrency
Networks: Complexity and Approximation.” 30th International Colloquium on Structural
Information and Communication Complexity, vol. 13892, Springer Nature, 2023,
pp. 576–94, doi:10.1007/978-3-031-32733-9_26.'
short: S. Schmid, J. Svoboda, M.X. Yeo, in:, 30th International Colloquium on Structural
Information and Communication Complexity, Springer Nature, 2023, pp. 576–594.
conference:
end_date: 2023-06-09
location: Alcalá de Henares, Spain
name: 'SIROCCO: International Colloquium on Structural Information and Communication
Complexity'
start_date: 2023-06-06
corr_author: '1'
date_created: 2025-07-10T13:15:43Z
date_published: 2023-05-25T00:00:00Z
date_updated: 2025-12-02T14:02:38Z
day: '25'
department:
- _id: KrCh
- _id: KrPi
doi: 10.1007/978-3-031-32733-9_26
ec_funded: 1
external_id:
isi:
- '001292782600026'
intvolume: ' 13892'
isi: 1
language:
- iso: eng
month: '05'
oa_version: None
page: 576-594
project:
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
call_identifier: H2020
grant_number: '863818'
name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
publication: 30th International Colloquium on Structural Information and Communication
Complexity
publication_identifier:
eisbn:
- '9783031327339'
eissn:
- 1611-3349
isbn:
- '9783031327322'
issn:
- 0302-9743
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
record:
- id: '14820'
relation: later_version
status: public
scopus_import: '1'
status: public
title: 'Weighted acket selection for rechargeable links in cryptocurrency networks:
Complexity and approximation'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13892
year: '2023'
...
---
OA_place: repository
OA_type: green
_id: '20572'
abstract:
- lang: eng
text: "We present an elementary non-recursive formula for the multivariate moments\r\nof
the Dirichlet distribution on the standard simplex, in terms of the pattern\r\ninventory
of the moments' exponents. We obtain analog formulas for the\r\nmultivariate moments
of the Dirichlet-Ferguson and Gamma measures. We further\r\nintroduce a polychromatic
analogue of Ewens sampling formula on colored integer\r\npartitions, discuss its
relation with suitable extensions of Hoppe's urn model\r\nand of the Chinese restaurant
process, and prove that it satisfies an adapted\r\nnotion of consistency in the
sense of Kingman."
acknowledgement: This research was funded by the Austrian Science Fund (FWF) ESPRIT
208. For the purpose of open access, the authors have applied a CC BY public copyright
licence to any Author Accepted Manuscript version arising from this submission.
F.Q. gratefully acknowledges support by the Austrian Science Fund (FWF), Project
SFB F65. The authors are grateful to Professor Nathanaël Berestycki for several
helpful suggestions, and to Nicola Battisti and Dr. Elizabeth Hollwey for enlightening
discussions on DNA-methylation.
article_number: '2309.11292'
article_processing_charge: No
arxiv: 1
author:
- first_name: Lorenzo
full_name: Dello Schiavo, Lorenzo
id: ECEBF480-9E4F-11EA-B557-B0823DDC885E
last_name: Dello Schiavo
orcid: 0000-0002-9881-6870
- first_name: Filippo
full_name: Quattrocchi, Filippo
id: 3ebd6ba8-edfb-11eb-afb5-91a9745ba308
last_name: Quattrocchi
orcid: 0009-0000-9773-1931
citation:
ama: Dello Schiavo L, Quattrocchi F. Multivariate Dirichlet moments and a polychromatic
Ewens sampling formula. arXiv. doi:10.48550/arXiv.2309.11292
apa: Dello Schiavo, L., & Quattrocchi, F. (n.d.). Multivariate Dirichlet moments
and a polychromatic Ewens sampling formula. arXiv. https://doi.org/10.48550/arXiv.2309.11292
chicago: Dello Schiavo, Lorenzo, and Filippo Quattrocchi. “Multivariate Dirichlet
Moments and a Polychromatic Ewens Sampling Formula.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2309.11292.
ieee: L. Dello Schiavo and F. Quattrocchi, “Multivariate Dirichlet moments and a
polychromatic Ewens sampling formula,” arXiv. .
ista: Dello Schiavo L, Quattrocchi F. Multivariate Dirichlet moments and a polychromatic
Ewens sampling formula. arXiv, 2309.11292.
mla: Dello Schiavo, Lorenzo, and Filippo Quattrocchi. “Multivariate Dirichlet Moments
and a Polychromatic Ewens Sampling Formula.” ArXiv, 2309.11292, doi:10.48550/arXiv.2309.11292.
short: L. Dello Schiavo, F. Quattrocchi, ArXiv (n.d.).
corr_author: '1'
date_created: 2025-10-28T13:13:08Z
date_published: 2023-09-20T00:00:00Z
date_updated: 2025-11-24T13:53:48Z
day: '20'
department:
- _id: GradSch
- _id: JaMa
doi: 10.48550/arXiv.2309.11292
external_id:
arxiv:
- '2309.11292'
keyword:
- Dirichlet distribution
- Ewens sampling formula
- Hoppe urn model
- colored partitions
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2309.11292
month: '09'
oa: 1
oa_version: Preprint
project:
- _id: 34dbf174-11ca-11ed-8bc3-afe9d43d4b9c
grant_number: E208
name: Configuration Spaces over Non-Smooth Spaces
- _id: 260482E2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: F06504
name: Taming Complexity in Partial Differential Systems
publication: arXiv
publication_status: draft
status: public
title: Multivariate Dirichlet moments and a polychromatic Ewens sampling formula
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
OA_place: repository
OA_type: green
_id: '20624'
abstract:
- lang: eng
text: We describe a sequence of smooth quotients of the Deligne-Mumford moduli space
${\mathbb R}\overline{\mathcal M}_{0,\ell+1}$ of real rational curves with $\ell\!+\!1$
conjugate pairs of marked points that terminates at ${\mathbb R}\overline{\mathcal
M}_{0,\ell}\!\times\!{\mathbb C}{\mathbb P}^1$. This produces an analogue of Keel's
blowup construction of the Deligne-Mumford moduli spaces $\overline{\mathcal M}_{\ell+1}$
of rational curves with $\ell\!+\!1$ marked points, but with an explicit description
of the intermediate spaces and the blowups of three different types. The same
framework readily adapts to the real moduli spaces with real points. In a sequel,
we use this inductive construction of ${\mathbb R}\overline{\mathcal M}_{0,\ell+1}$
to completely determine the rational (co)homology ring of ${\mathbb R}\overline{\mathcal
M}_{0,\ell}$.
article_number: '2305.08811'
article_processing_charge: No
arxiv: 1
author:
- first_name: Xujia
full_name: Chen, Xujia
id: 968ad14a-fd86-11ee-a420-ea29715511a3
last_name: Chen
- first_name: Aleksey
full_name: Zinger, Aleksey
last_name: Zinger
citation:
ama: Chen X, Zinger A. Blowdowns of the Deligne-Mumford spaces of real rational
curves. arXiv. doi:10.48550/ARXIV.2305.08811
apa: Chen, X., & Zinger, A. (n.d.). Blowdowns of the Deligne-Mumford spaces
of real rational curves. arXiv. https://doi.org/10.48550/ARXIV.2305.08811
chicago: Chen, Xujia, and Aleksey Zinger. “Blowdowns of the Deligne-Mumford Spaces
of Real Rational Curves.” ArXiv, n.d. https://doi.org/10.48550/ARXIV.2305.08811.
ieee: X. Chen and A. Zinger, “Blowdowns of the Deligne-Mumford spaces of real rational
curves,” arXiv. .
ista: Chen X, Zinger A. Blowdowns of the Deligne-Mumford spaces of real rational
curves. arXiv, 2305.08811.
mla: Chen, Xujia, and Aleksey Zinger. “Blowdowns of the Deligne-Mumford Spaces of
Real Rational Curves.” ArXiv, 2305.08811, doi:10.48550/ARXIV.2305.08811.
short: X. Chen, A. Zinger, ArXiv (n.d.).
date_created: 2025-11-10T08:45:42Z
date_published: 2023-05-15T00:00:00Z
date_updated: 2025-11-10T15:06:21Z
day: '15'
doi: 10.48550/ARXIV.2305.08811
extern: '1'
external_id:
arxiv:
- '2305.08811'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2305.08811
month: '05'
oa: 1
oa_version: Preprint
publication: arXiv
publication_status: submitted
status: public
title: Blowdowns of the Deligne-Mumford spaces of real rational curves
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
OA_place: repository
OA_type: green
_id: '20625'
abstract:
- lang: eng
text: It is a long-established and heavily-used fact that the integral cohomology
ring of the Deligne-Mumford moduli space of (complex) rational curves is the polynomial
ring on the boundary divisors modulo the ideal generated by the obvious geometric
relations between them. We show that the rational cohomology ring of the Deligne-Mumford
moduli space of real rational curves with conjugate marked points only is the
polynomial ring on certain (``complex") boundary divisors and real boundary hypersurfaces
modulo the ideal generated by the obvious geometric relations between them and
the geometric relation in positive dimension and codimension identified in a previous
paper.
article_number: '2305.08798'
article_processing_charge: No
arxiv: 1
author:
- first_name: Xujia
full_name: Chen, Xujia
id: 968ad14a-fd86-11ee-a420-ea29715511a3
last_name: Chen
- first_name: Penka
full_name: Georgieva, Penka
last_name: Georgieva
- first_name: Aleksey
full_name: Zinger, Aleksey
last_name: Zinger
citation:
ama: Chen X, Georgieva P, Zinger A. The cohomology ring of the Deligne-Mumford moduli
space of real rational curves with conjugate marked points. arXiv. doi:10.48550/ARXIV.2305.08798
apa: Chen, X., Georgieva, P., & Zinger, A. (n.d.). The cohomology ring of the
Deligne-Mumford moduli space of real rational curves with conjugate marked points.
arXiv. https://doi.org/10.48550/ARXIV.2305.08798
chicago: Chen, Xujia, Penka Georgieva, and Aleksey Zinger. “The Cohomology Ring
of the Deligne-Mumford Moduli Space of Real Rational Curves with Conjugate Marked
Points.” ArXiv, n.d. https://doi.org/10.48550/ARXIV.2305.08798.
ieee: X. Chen, P. Georgieva, and A. Zinger, “The cohomology ring of the Deligne-Mumford
moduli space of real rational curves with conjugate marked points,” arXiv.
.
ista: Chen X, Georgieva P, Zinger A. The cohomology ring of the Deligne-Mumford
moduli space of real rational curves with conjugate marked points. arXiv, 2305.08798.
mla: Chen, Xujia, et al. “The Cohomology Ring of the Deligne-Mumford Moduli Space
of Real Rational Curves with Conjugate Marked Points.” ArXiv, 2305.08798,
doi:10.48550/ARXIV.2305.08798.
short: X. Chen, P. Georgieva, A. Zinger, ArXiv (n.d.).
date_created: 2025-11-10T08:46:11Z
date_published: 2023-05-15T00:00:00Z
date_updated: 2025-11-10T15:05:04Z
day: '15'
doi: 10.48550/ARXIV.2305.08798
extern: '1'
external_id:
arxiv:
- '2305.08798'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2305.08798
month: '05'
oa: 1
oa_version: Preprint
publication: arXiv
publication_status: submitted
status: public
title: The cohomology ring of the Deligne-Mumford moduli space of real rational curves
with conjugate marked points
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
OA_place: repository
OA_type: green
_id: '20626'
abstract:
- lang: eng
text: 'Kontsevich''s characteristic classes are invariants of framed smooth fiber
bundles with homology sphere fibers. It was shown by Watanabe that they can be
used to distinguish smooth $S^4$-bundles that are all trivial as topological fiber
bundles. In this article we show that this ability of Kontsevich''s classes is
a manifestation of the following principle: the ``real blow-up'''' construction
on a smooth manifold essentially depends on its smooth structure and thus, given
a smooth manifold (or smooth fiber bundle) $M$, the topological invariants of
spaces constructed from $M$ by real blow-ups could potentially differentiate smooth
structures on $M$. The main theorem says that Kontsevich''s characteristic classes
of a smooth framed bundle $π$ are determined by the topology of the 2-point configuration
space bundle of $π$ and framing data.'
article_number: '2302.03021'
article_processing_charge: No
arxiv: 1
author:
- first_name: Xujia
full_name: Chen, Xujia
id: 968ad14a-fd86-11ee-a420-ea29715511a3
last_name: Chen
citation:
ama: Chen X. Kontsevich’s characteristic classes as topological invariants of configuration
space bundles. arXiv. doi:10.48550/ARXIV.2302.03021
apa: Chen, X. (n.d.). Kontsevich’s characteristic classes as topological invariants
of configuration space bundles. arXiv. https://doi.org/10.48550/ARXIV.2302.03021
chicago: Chen, Xujia. “Kontsevich’s Characteristic Classes as Topological Invariants
of Configuration Space Bundles.” ArXiv, n.d. https://doi.org/10.48550/ARXIV.2302.03021.
ieee: X. Chen, “Kontsevich’s characteristic classes as topological invariants of
configuration space bundles,” arXiv. .
ista: Chen X. Kontsevich’s characteristic classes as topological invariants of configuration
space bundles. arXiv, 2302.03021.
mla: Chen, Xujia. “Kontsevich’s Characteristic Classes as Topological Invariants
of Configuration Space Bundles.” ArXiv, 2302.03021, doi:10.48550/ARXIV.2302.03021.
short: X. Chen, ArXiv (n.d.).
date_created: 2025-11-10T08:46:37Z
date_published: 2023-02-06T00:00:00Z
date_updated: 2025-11-10T15:00:28Z
day: '06'
doi: 10.48550/ARXIV.2302.03021
extern: '1'
external_id:
arxiv:
- '2302.03021'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2302.03021
month: '02'
oa: 1
oa_version: Preprint
publication: arXiv
publication_status: submitted
status: public
title: Kontsevich's characteristic classes as topological invariants of configuration
space bundles
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
OA_type: closed access
_id: '20759'
abstract:
- lang: eng
text: Recent advances in single-atom insertion reactions have opened up new synthetic
approaches for molecular diversification. Developing innovative strategies to
directly transform biologically relevant molecules, without any prefunctionalization,
is key to further expanding the scope and utility of such transformations. Herein,
the direct access to quinazolines and pyrimidines from the corresponding unprotected
1H-indoles and 1H-pyrroles is reported, relying on the implementation of lithium
bis(trimethylsilyl)amide (LiHMDS) as a novel nitrogen atom source in combination
with commercially available hypervalent iodine reagents. Further application of
this strategy in late-stage settings demonstrates its potential in lead structure
diversification campaigns.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Julia
full_name: Reisenbauer, Julia
id: 51d862e9-36ee-11f0-86d3-8534c85a5496
last_name: Reisenbauer
- first_name: Ann-Sophie K.
full_name: Paschke, Ann-Sophie K.
last_name: Paschke
- first_name: Jelena
full_name: Krizic, Jelena
last_name: Krizic
- first_name: Bence B.
full_name: Botlik, Bence B.
last_name: Botlik
- first_name: Patrick
full_name: Finkelstein, Patrick
last_name: Finkelstein
- first_name: Bill
full_name: Morandi, Bill
last_name: Morandi
citation:
ama: Reisenbauer J, Paschke A-SK, Krizic J, Botlik BB, Finkelstein P, Morandi B.
Direct access to quinazolines and pyrimidines from unprotected indoles and pyrroles
through nitrogen atom insertion. Organic Letters. 2023;25(47):8419-8423.
doi:10.1021/acs.orglett.3c03264
apa: Reisenbauer, J., Paschke, A.-S. K., Krizic, J., Botlik, B. B., Finkelstein,
P., & Morandi, B. (2023). Direct access to quinazolines and pyrimidines from
unprotected indoles and pyrroles through nitrogen atom insertion. Organic Letters.
American Chemical Society. https://doi.org/10.1021/acs.orglett.3c03264
chicago: Reisenbauer, Julia, Ann-Sophie K. Paschke, Jelena Krizic, Bence B. Botlik,
Patrick Finkelstein, and Bill Morandi. “Direct Access to Quinazolines and Pyrimidines
from Unprotected Indoles and Pyrroles through Nitrogen Atom Insertion.” Organic
Letters. American Chemical Society, 2023. https://doi.org/10.1021/acs.orglett.3c03264.
ieee: J. Reisenbauer, A.-S. K. Paschke, J. Krizic, B. B. Botlik, P. Finkelstein,
and B. Morandi, “Direct access to quinazolines and pyrimidines from unprotected
indoles and pyrroles through nitrogen atom insertion,” Organic Letters,
vol. 25, no. 47. American Chemical Society, pp. 8419–8423, 2023.
ista: Reisenbauer J, Paschke A-SK, Krizic J, Botlik BB, Finkelstein P, Morandi B.
2023. Direct access to quinazolines and pyrimidines from unprotected indoles and
pyrroles through nitrogen atom insertion. Organic Letters. 25(47), 8419–8423.
mla: Reisenbauer, Julia, et al. “Direct Access to Quinazolines and Pyrimidines from
Unprotected Indoles and Pyrroles through Nitrogen Atom Insertion.” Organic
Letters, vol. 25, no. 47, American Chemical Society, 2023, pp. 8419–23, doi:10.1021/acs.orglett.3c03264.
short: J. Reisenbauer, A.-S.K. Paschke, J. Krizic, B.B. Botlik, P. Finkelstein,
B. Morandi, Organic Letters 25 (2023) 8419–8423.
date_created: 2025-12-09T14:23:23Z
date_published: 2023-11-20T00:00:00Z
date_updated: 2025-12-16T11:07:40Z
day: '20'
doi: 10.1021/acs.orglett.3c03264
extern: '1'
external_id:
pmid:
- '37983173'
intvolume: ' 25'
issue: '47'
language:
- iso: eng
month: '11'
oa_version: None
page: 8419-8423
pmid: 1
publication: Organic Letters
publication_identifier:
eissn:
- 1523-7052
issn:
- 1523-7060
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Direct access to quinazolines and pyrimidines from unprotected indoles and
pyrroles through nitrogen atom insertion
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 25
year: '2023'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20760'
abstract:
- lang: eng
text: The implementation of HCN-free transfer hydrocyanation reactions on laboratory
scales has recently been achieved by using HCN donor reagents under nickel- and
Lewis acid co-catalysis. More recently, malononitrile-based HCN donor reagents
were shown to undergo the C(sp3)–CN bond activation by the nickel catalyst in
the absence of Lewis acids. However, there is a lack of detailed mechanistic understanding
of the challenging C(sp3)–CN bond cleavage step. In this work, in-depth kinetic
and computational studies using alkynes as substrates were used to elucidate the
overall reaction mechanism of this transfer hydrocyanation, with a particular
focus on the activation of the C(sp3)–CN bond to generate the active H–Ni–CN transfer
hydrocyanation catalyst. Comparisons of experimentally and computationally derived
13C kinetic isotope effect data support a direct oxidative addition mechanism
of the nickel catalyst into the C(sp3)–CN bond facilitated by the coordination
of the second nitrile group to the nickel catalyst.
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Julia
full_name: Reisenbauer, Julia
id: 51d862e9-36ee-11f0-86d3-8534c85a5496
last_name: Reisenbauer
- first_name: Patrick
full_name: Finkelstein, Patrick
last_name: Finkelstein
- first_name: Marc-Olivier
full_name: Ebert, Marc-Olivier
last_name: Ebert
- first_name: Bill
full_name: Morandi, Bill
last_name: Morandi
citation:
ama: Reisenbauer J, Finkelstein P, Ebert M-O, Morandi B. Mechanistic investigation
of the nickel-catalyzed transfer hydrocyanation of alkynes. ACS Catalysis.
2023;13(17):11548-11555. doi:10.1021/acscatal.3c02977
apa: Reisenbauer, J., Finkelstein, P., Ebert, M.-O., & Morandi, B. (2023). Mechanistic
investigation of the nickel-catalyzed transfer hydrocyanation of alkynes. ACS
Catalysis. American Chemical Society. https://doi.org/10.1021/acscatal.3c02977
chicago: Reisenbauer, Julia, Patrick Finkelstein, Marc-Olivier Ebert, and Bill Morandi.
“Mechanistic Investigation of the Nickel-Catalyzed Transfer Hydrocyanation of
Alkynes.” ACS Catalysis. American Chemical Society, 2023. https://doi.org/10.1021/acscatal.3c02977.
ieee: J. Reisenbauer, P. Finkelstein, M.-O. Ebert, and B. Morandi, “Mechanistic
investigation of the nickel-catalyzed transfer hydrocyanation of alkynes,” ACS
Catalysis, vol. 13, no. 17. American Chemical Society, pp. 11548–11555, 2023.
ista: Reisenbauer J, Finkelstein P, Ebert M-O, Morandi B. 2023. Mechanistic investigation
of the nickel-catalyzed transfer hydrocyanation of alkynes. ACS Catalysis. 13(17),
11548–11555.
mla: Reisenbauer, Julia, et al. “Mechanistic Investigation of the Nickel-Catalyzed
Transfer Hydrocyanation of Alkynes.” ACS Catalysis, vol. 13, no. 17, American
Chemical Society, 2023, pp. 11548–55, doi:10.1021/acscatal.3c02977.
short: J. Reisenbauer, P. Finkelstein, M.-O. Ebert, B. Morandi, ACS Catalysis 13
(2023) 11548–11555.
date_created: 2025-12-09T14:23:42Z
date_published: 2023-08-16T00:00:00Z
date_updated: 2025-12-16T11:11:14Z
day: '16'
doi: 10.1021/acscatal.3c02977
extern: '1'
external_id:
pmid:
- '37671177'
has_accepted_license: '1'
intvolume: ' 13'
issue: '17'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1021/acscatal.3c02977
month: '08'
oa: 1
oa_version: Published Version
page: 11548-11555
pmid: 1
publication: ACS Catalysis
publication_identifier:
eissn:
- 2155-5435
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Mechanistic investigation of the nickel-catalyzed transfer hydrocyanation of
alkynes
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
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2023'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '20761'
abstract:
- lang: eng
text: We report a convenient protocol for a nitrogen atom insertion into indenes
to afford isoquinolines. The reaction uses a combination of commercially available
phenyliodine(III) diacetate (PIDA) and ammonium carbamate as the nitrogen source
to furnish a wide range of isoquinolines. Various substitution patterns and commonly
used functional groups are well tolerated. The operational simplicity renders
this protocol broadly applicable and has been successfully extended towards the
direct interconversion of cyclopentadienes into the corresponding pyridines. Furthermore,
this strategy enables the facile synthesis of 15N labelled isoquinolines, using
15NH4Cl as a commercial 15N source.
article_processing_charge: Yes
article_type: original
author:
- first_name: Patrick
full_name: Finkelstein, Patrick
last_name: Finkelstein
- first_name: Julia
full_name: Reisenbauer, Julia
id: 51d862e9-36ee-11f0-86d3-8534c85a5496
last_name: Reisenbauer
- first_name: Bence B.
full_name: Botlik, Bence B.
last_name: Botlik
- first_name: Ori
full_name: Green, Ori
last_name: Green
- first_name: Andri
full_name: Florin, Andri
last_name: Florin
- first_name: Bill
full_name: Morandi, Bill
last_name: Morandi
citation:
ama: Finkelstein P, Reisenbauer J, Botlik BB, Green O, Florin A, Morandi B. Nitrogen
atom insertion into indenes to access isoquinolines. Chemical Science.
2023;14(11):2954-2959. doi:10.1039/d2sc06952k
apa: Finkelstein, P., Reisenbauer, J., Botlik, B. B., Green, O., Florin, A., &
Morandi, B. (2023). Nitrogen atom insertion into indenes to access isoquinolines.
Chemical Science. Royal Society of Chemistry. https://doi.org/10.1039/d2sc06952k
chicago: Finkelstein, Patrick, Julia Reisenbauer, Bence B. Botlik, Ori Green, Andri
Florin, and Bill Morandi. “Nitrogen Atom Insertion into Indenes to Access Isoquinolines.”
Chemical Science. Royal Society of Chemistry, 2023. https://doi.org/10.1039/d2sc06952k.
ieee: P. Finkelstein, J. Reisenbauer, B. B. Botlik, O. Green, A. Florin, and B.
Morandi, “Nitrogen atom insertion into indenes to access isoquinolines,” Chemical
Science, vol. 14, no. 11. Royal Society of Chemistry, pp. 2954–2959, 2023.
ista: Finkelstein P, Reisenbauer J, Botlik BB, Green O, Florin A, Morandi B. 2023.
Nitrogen atom insertion into indenes to access isoquinolines. Chemical Science.
14(11), 2954–2959.
mla: Finkelstein, Patrick, et al. “Nitrogen Atom Insertion into Indenes to Access
Isoquinolines.” Chemical Science, vol. 14, no. 11, Royal Society of Chemistry,
2023, pp. 2954–59, doi:10.1039/d2sc06952k.
short: P. Finkelstein, J. Reisenbauer, B.B. Botlik, O. Green, A. Florin, B. Morandi,
Chemical Science 14 (2023) 2954–2959.
date_created: 2025-12-09T14:23:59Z
date_published: 2023-02-23T00:00:00Z
date_updated: 2025-12-16T11:18:13Z
day: '23'
ddc:
- '540'
doi: 10.1039/d2sc06952k
extern: '1'
external_id:
pmid:
- '36937579'
has_accepted_license: '1'
intvolume: ' 14'
issue: '11'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/3.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.1039/D2SC06952K
month: '02'
oa: 1
oa_version: Published Version
page: 2954-2959
pmid: 1
publication: Chemical Science
publication_identifier:
eissn:
- 2041-6539
issn:
- 2041-6520
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nitrogen atom insertion into indenes to access isoquinolines
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/3.0/legalcode
name: Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
short: CC BY-NC (3.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14
year: '2023'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '20762'
abstract:
- lang: eng
text: "A metal-free deaminative coupling of non-prefunctionalised benzylamines and
arylboronic acids is reported. In this operationally simple reaction, a primary
amine in benzylamine is converted into a good leaving group in situ using inexpensive
and commercially available isoamyl nitrite as a nitrosating reagent. Lewis-acidic
arylboronic acids are shown to replace mineral acids such as HCl or HBF4 that
are conventionally used in the preparation of aryl diazonium salts. This unlocked
the formation of the corresponding diarylmethanes by forging a new C–C bond in
good yields.\r\n\r\n"
article_processing_charge: Yes
article_type: original
author:
- first_name: Giedre
full_name: Sirvinskaite, Giedre
last_name: Sirvinskaite
- first_name: Julia
full_name: Reisenbauer, Julia
id: 51d862e9-36ee-11f0-86d3-8534c85a5496
last_name: Reisenbauer
- first_name: Bill
full_name: Morandi, Bill
last_name: Morandi
citation:
ama: Sirvinskaite G, Reisenbauer J, Morandi B. Deaminative coupling of benzylamines
and arylboronic acids. Chemical Science. 2023;14(7):1709-1714. doi:10.1039/d2sc06055h
apa: Sirvinskaite, G., Reisenbauer, J., & Morandi, B. (2023). Deaminative coupling
of benzylamines and arylboronic acids. Chemical Science. Royal Society
of Chemistry. https://doi.org/10.1039/d2sc06055h
chicago: Sirvinskaite, Giedre, Julia Reisenbauer, and Bill Morandi. “Deaminative
Coupling of Benzylamines and Arylboronic Acids.” Chemical Science. Royal
Society of Chemistry, 2023. https://doi.org/10.1039/d2sc06055h.
ieee: G. Sirvinskaite, J. Reisenbauer, and B. Morandi, “Deaminative coupling of
benzylamines and arylboronic acids,” Chemical Science, vol. 14, no. 7.
Royal Society of Chemistry, pp. 1709–1714, 2023.
ista: Sirvinskaite G, Reisenbauer J, Morandi B. 2023. Deaminative coupling of benzylamines
and arylboronic acids. Chemical Science. 14(7), 1709–1714.
mla: Sirvinskaite, Giedre, et al. “Deaminative Coupling of Benzylamines and Arylboronic
Acids.” Chemical Science, vol. 14, no. 7, Royal Society of Chemistry, 2023,
pp. 1709–14, doi:10.1039/d2sc06055h.
short: G. Sirvinskaite, J. Reisenbauer, B. Morandi, Chemical Science 14 (2023) 1709–1714.
date_created: 2025-12-09T14:24:17Z
date_published: 2023-01-13T00:00:00Z
date_updated: 2025-12-16T11:17:41Z
day: '13'
doi: 10.1039/d2sc06055h
extern: '1'
external_id:
pmid:
- '36819866'
has_accepted_license: '1'
intvolume: ' 14'
issue: '7'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1039/D2SC06055H
month: '01'
oa: 1
oa_version: Published Version
page: 1709-1714
pmid: 1
publication: Chemical Science
publication_identifier:
eissn:
- 2041-6539
issn:
- 2041-6520
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
scopus_import: '1'
status: public
title: Deaminative coupling of benzylamines and arylboronic acids
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/3.0/legalcode
name: Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
short: CC BY-NC (3.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14
year: '2023'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '18942'
abstract:
- lang: eng
text: Photosynthesis is among the first processes negatively affected by environmental
cues and its performance directly determines plant cell fitness and ultimately
crop yield. Primarily sites of photosynthesis, chloroplasts are unique sites also
for the biosynthesis of precursors of the growth regulator auxin and for sensing
environmental stress, but their role in intracellular auxin homeostasis, vital
for plant growth and survival in changing environments, remains poorly understood.
Here, we identified two ATP-binding cassette (ABC) subfamily B transporters, ABCB28
and ABCB29, which export auxin across the chloroplast envelope to the cytosol
in a concerted action in vivo. Moreover, we provide evidence for an auxin biosynthesis
pathway in Arabidopsis thaliana chloroplasts. The overexpression of ABCB28 and
ABCB29 influenced stomatal regulation and resulted in significantly improved water
use efficiency and survival rates during salt and drought stresses. Our results
suggest that chloroplast auxin production and transport contribute to stomata
regulation for conserving water upon salt stress. ABCB28 and ABCB29 integrate
photosynthesis and auxin signals and as such hold great potential to improve the
adaptation potential of crops to environmental cues.
article_number: '7'
article_processing_charge: Yes
article_type: original
author:
- first_name: Prashanth
full_name: Tamizhselvan, Prashanth
last_name: Tamizhselvan
- first_name: Sharmila
full_name: Madhavan, Sharmila
last_name: Madhavan
- first_name: Christian
full_name: Constan-Aguilar, Christian
last_name: Constan-Aguilar
- first_name: Eman Ryad
full_name: Elrefaay, Eman Ryad
last_name: Elrefaay
- first_name: Jie
full_name: Liu, Jie
last_name: Liu
- first_name: Aleš
full_name: Pěnčík, Aleš
last_name: Pěnčík
- first_name: Ondřej
full_name: Novák, Ondřej
last_name: Novák
- first_name: Albert
full_name: Cairó, Albert
last_name: Cairó
- first_name: Mónika
full_name: Hrtyan, Mónika
id: 45A71A74-F248-11E8-B48F-1D18A9856A87
last_name: Hrtyan
- first_name: Markus
full_name: Geisler, Markus
last_name: Geisler
- first_name: Vanesa Beatriz
full_name: Tognetti, Vanesa Beatriz
last_name: Tognetti
citation:
ama: Tamizhselvan P, Madhavan S, Constan-Aguilar C, et al. Chloroplast auxin efflux
mediated by ABCB28 and ABCB29 fine-tunes salt and drought stress responses in
Arabidopsis. Plants. 2023;13(1). doi:10.3390/plants13010007
apa: Tamizhselvan, P., Madhavan, S., Constan-Aguilar, C., Elrefaay, E. R., Liu,
J., Pěnčík, A., … Tognetti, V. B. (2023). Chloroplast auxin efflux mediated by
ABCB28 and ABCB29 fine-tunes salt and drought stress responses in Arabidopsis.
Plants. MDPI. https://doi.org/10.3390/plants13010007
chicago: Tamizhselvan, Prashanth, Sharmila Madhavan, Christian Constan-Aguilar,
Eman Ryad Elrefaay, Jie Liu, Aleš Pěnčík, Ondřej Novák, et al. “Chloroplast Auxin
Efflux Mediated by ABCB28 and ABCB29 Fine-Tunes Salt and Drought Stress Responses
in Arabidopsis.” Plants. MDPI, 2023. https://doi.org/10.3390/plants13010007.
ieee: P. Tamizhselvan et al., “Chloroplast auxin efflux mediated by ABCB28
and ABCB29 fine-tunes salt and drought stress responses in Arabidopsis,” Plants,
vol. 13, no. 1. MDPI, 2023.
ista: Tamizhselvan P, Madhavan S, Constan-Aguilar C, Elrefaay ER, Liu J, Pěnčík
A, Novák O, Cairó A, Hrtyan M, Geisler M, Tognetti VB. 2023. Chloroplast auxin
efflux mediated by ABCB28 and ABCB29 fine-tunes salt and drought stress responses
in Arabidopsis. Plants. 13(1), 7.
mla: Tamizhselvan, Prashanth, et al. “Chloroplast Auxin Efflux Mediated by ABCB28
and ABCB29 Fine-Tunes Salt and Drought Stress Responses in Arabidopsis.” Plants,
vol. 13, no. 1, 7, MDPI, 2023, doi:10.3390/plants13010007.
short: P. Tamizhselvan, S. Madhavan, C. Constan-Aguilar, E.R. Elrefaay, J. Liu,
A. Pěnčík, O. Novák, A. Cairó, M. Hrtyan, M. Geisler, V.B. Tognetti, Plants 13
(2023).
date_created: 2025-01-29T09:03:56Z
date_published: 2023-12-19T00:00:00Z
date_updated: 2025-01-29T09:07:53Z
day: '19'
ddc:
- '580'
department:
- _id: EvBe
doi: 10.3390/plants13010007
external_id:
pmid:
- '38202315'
file:
- access_level: open_access
checksum: 97efcefa8151d69343b0b641630c86ee
content_type: application/pdf
creator: dernst
date_created: 2025-01-29T09:06:51Z
date_updated: 2025-01-29T09:06:51Z
file_id: '18943'
file_name: 2023_Plants_Tamizhselvan.pdf
file_size: 6231778
relation: main_file
success: 1
file_date_updated: 2025-01-29T09:06:51Z
has_accepted_license: '1'
intvolume: ' 13'
issue: '1'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
pmid: 1
publication: Plants
publication_identifier:
eissn:
- 2223-7747
publication_status: published
publisher: MDPI
quality_controlled: '1'
scopus_import: '1'
status: public
title: Chloroplast auxin efflux mediated by ABCB28 and ABCB29 fine-tunes salt and
drought stress responses in Arabidopsis
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
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2023'
...
---
_id: '18959'
abstract:
- lang: eng
text: This workshop continues a series of workshops whose current format originated
in 1981 under then-organizers Moser and Zehnder, and whose latest iteration took
place in July 2023. The general goal of this series of workshops is to discuss
the latest developments in the field of dynamical systems, broadly construed,
and its connections with neighboring areas of mathematics such as differential
geometry, partial differential equations, and more recently contact and symplectic
geometry. We continued this tradition, bringing in new participants working in
areas of dynamical systems and its connections with other areas of mathematics
that are currently highly active and/or showing great promise for future development.
Key focus areas for the 2023 workshop include spectral rigidity for planar domains,
chaotic and oscillatory motions in celestial mechanics, conformal symplectic dynamics,
and relations between dynamics.he workshop by the grant DMS-2230648, “US Junior
Oberwolfach Fellows”.
acknowledgement: The MFO and the workshop organizers would like to thank the National
Science Foundation for supporting the participation of junior researchers in the
workshop by the grant DMS-2230648, “US Junior Oberwolfach Fellows”.
article_processing_charge: No
article_type: original
author:
- first_name: Marie-Claude
full_name: Arnaud, Marie-Claude
last_name: Arnaud
- first_name: Michael
full_name: Hutchings, Michael
last_name: Hutchings
- first_name: Vadim
full_name: Kaloshin, Vadim
id: FE553552-CDE8-11E9-B324-C0EBE5697425
last_name: Kaloshin
orcid: 0000-0002-6051-2628
citation:
ama: Arnaud M-C, Hutchings M, Kaloshin V. Dynamische Systeme. Oberwolfach Reports.
2023;20(3):1671-1730. doi:10.4171/owr/2023/30
apa: Arnaud, M.-C., Hutchings, M., & Kaloshin, V. (2023). Dynamische Systeme.
Oberwolfach Reports. EMS Press. https://doi.org/10.4171/owr/2023/30
chicago: Arnaud, Marie-Claude, Michael Hutchings, and Vadim Kaloshin. “Dynamische
Systeme.” Oberwolfach Reports. EMS Press, 2023. https://doi.org/10.4171/owr/2023/30.
ieee: M.-C. Arnaud, M. Hutchings, and V. Kaloshin, “Dynamische Systeme,” Oberwolfach
Reports, vol. 20, no. 3. EMS Press, pp. 1671–1730, 2023.
ista: Arnaud M-C, Hutchings M, Kaloshin V. 2023. Dynamische Systeme. Oberwolfach
Reports. 20(3), 1671–1730.
mla: Arnaud, Marie-Claude, et al. “Dynamische Systeme.” Oberwolfach Reports,
vol. 20, no. 3, EMS Press, 2023, pp. 1671–730, doi:10.4171/owr/2023/30.
short: M.-C. Arnaud, M. Hutchings, V. Kaloshin, Oberwolfach Reports 20 (2023) 1671–1730.
date_created: 2025-01-29T13:19:15Z
date_published: 2023-07-09T00:00:00Z
date_updated: 2025-01-29T13:23:15Z
day: '09'
department:
- _id: VaKa
doi: 10.4171/owr/2023/30
intvolume: ' 20'
issue: '3'
language:
- iso: eng
month: '07'
oa_version: None
page: 1671-1730
publication: Oberwolfach Reports
publication_identifier:
eissn:
- 1660-8941
issn:
- 1660-8933
publication_status: published
publisher: EMS Press
quality_controlled: '1'
status: public
title: Dynamische Systeme
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 20
year: '2023'
...
---
OA_place: repository
OA_type: green
_id: '19053'
abstract:
- lang: eng
text: Building on previous works by Bilu, Chambert-Loir and Loeser, we study the
asymptotic behaviour of the moduli space of sections of a given family over a
smooth projective curve, assuming that the generic fiber is an equivariant compactification
of a finite dimensional vector space. Working in a suitable Grothendieck ring
of varieties, we show that the class of these moduli spaces converges, modulo
an adequate normalisation, to a non-zero effective element, when the class of
the sections goes arbitrary far from the boundary of the dual of the effective
cone. The limit can be interpreted as a motivic Euler product in the sense of
Bilu’s thesis. This result provides a positive answer to a motivic version of
the Batyrev–Manin–Peyre conjectures in this particular setting.
acknowledgement: I am grateful to Emmanuel Peyre for his help, reading and useful
comments throughout the drafting process of this article. I am also very indebted
to Margaret Bilu for all the constructions and properties that I used in this paper
and which are due to her, especially those concerning the motivic Euler product,
as well as for enlightening discussions and remarks on an earlier version of this
work. I thank the anonymous referee for his/her remarks and suggestions that helped
me to enhance the clarity of the exposition.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Loïs
full_name: Faisant, Loïs
id: 26ca6926-5797-11ee-9232-f8b51bd19631
last_name: Faisant
citation:
ama: Faisant L. Geometric Batyrev–Manin–Peyre for equivariant compactifications
of additive groups. Beiträge zur Algebra und Geometrie / Contributions to Algebra
and Geometry. 2023;64(3):783-850. doi:10.1007/s13366-022-00656-w
apa: Faisant, L. (2023). Geometric Batyrev–Manin–Peyre for equivariant compactifications
of additive groups. Beiträge Zur Algebra Und Geometrie / Contributions to Algebra
and Geometry. Springer Nature. https://doi.org/10.1007/s13366-022-00656-w
chicago: Faisant, Loïs. “Geometric Batyrev–Manin–Peyre for Equivariant Compactifications
of Additive Groups.” Beiträge Zur Algebra Und Geometrie / Contributions to
Algebra and Geometry. Springer Nature, 2023. https://doi.org/10.1007/s13366-022-00656-w.
ieee: L. Faisant, “Geometric Batyrev–Manin–Peyre for equivariant compactifications
of additive groups,” Beiträge zur Algebra und Geometrie / Contributions to
Algebra and Geometry, vol. 64, no. 3. Springer Nature, pp. 783–850, 2023.
ista: Faisant L. 2023. Geometric Batyrev–Manin–Peyre for equivariant compactifications
of additive groups. Beiträge zur Algebra und Geometrie / Contributions to Algebra
and Geometry. 64(3), 783–850.
mla: Faisant, Loïs. “Geometric Batyrev–Manin–Peyre for Equivariant Compactifications
of Additive Groups.” Beiträge Zur Algebra Und Geometrie / Contributions to
Algebra and Geometry, vol. 64, no. 3, Springer Nature, 2023, pp. 783–850,
doi:10.1007/s13366-022-00656-w.
short: L. Faisant, Beiträge Zur Algebra Und Geometrie / Contributions to Algebra
and Geometry 64 (2023) 783–850.
date_created: 2025-02-18T13:32:39Z
date_published: 2023-09-01T00:00:00Z
date_updated: 2025-02-24T10:50:30Z
day: '01'
doi: 10.1007/s13366-022-00656-w
extern: '1'
external_id:
arxiv:
- '2106.11898'
intvolume: ' 64'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2106.11898'
month: '09'
oa: 1
oa_version: Preprint
page: 783-850
publication: Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry
publication_identifier:
eissn:
- 2191-0383
issn:
- 0138-4821
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Geometric Batyrev–Manin–Peyre for equivariant compactifications of additive
groups
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 64
year: '2023'
...
---
OA_place: repository
OA_type: green
_id: '19308'
abstract:
- lang: eng
text: 'This Dataset contains the raw data from the following publication: "Optical
and electronic signal stabilization of plasmonic fiber optic gate electrodes:
towards improved real-time dual-mode biosensing" (DOI 10.3389/fphy.2023.1202132)'
article_processing_charge: No
author:
- first_name: Roger
full_name: Hasler, Roger
last_name: Hasler
- first_name: Marie-Helene
full_name: Polt, Marie-Helene
last_name: Polt
- first_name: Ciril
full_name: Reiner-Rozman, Ciril
last_name: Reiner-Rozman
- first_name: Stefan
full_name: Fossati, Stefan
last_name: Fossati
- first_name: Seungho
full_name: Lee, Seungho
last_name: Lee
- first_name: Patrik
full_name: Aspermair, Patrik
last_name: Aspermair
- first_name: Christoph
full_name: Kleber, Christoph
last_name: Kleber
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Jakub
full_name: Dostalek, Jakub
last_name: Dostalek
- first_name: Wolfgang
full_name: Knoll, Wolfgang
last_name: Knoll
citation:
ama: 'Hasler R, Polt M-H, Reiner-Rozman C, et al. Optical and electronic signal
stabilization of plasmonic fiber optic gate electrodes: Towards improved real-time
dual-mode biosensing. 2023. doi:10.5281/ZENODO.7716920'
apa: 'Hasler, R., Polt, M.-H., Reiner-Rozman, C., Fossati, S., Lee, S., Aspermair,
P., … Knoll, W. (2023). Optical and electronic signal stabilization of plasmonic
fiber optic gate electrodes: Towards improved real-time dual-mode biosensing.
Zenodo. https://doi.org/10.5281/ZENODO.7716920'
chicago: 'Hasler, Roger, Marie-Helene Polt, Ciril Reiner-Rozman, Stefan Fossati,
Seungho Lee, Patrik Aspermair, Christoph Kleber, Maria Ibáñez, Jakub Dostalek,
and Wolfgang Knoll. “Optical and Electronic Signal Stabilization of Plasmonic
Fiber Optic Gate Electrodes: Towards Improved Real-Time Dual-Mode Biosensing.”
Zenodo, 2023. https://doi.org/10.5281/ZENODO.7716920.'
ieee: 'R. Hasler et al., “Optical and electronic signal stabilization of
plasmonic fiber optic gate electrodes: Towards improved real-time dual-mode biosensing.”
Zenodo, 2023.'
ista: 'Hasler R, Polt M-H, Reiner-Rozman C, Fossati S, Lee S, Aspermair P, Kleber
C, Ibáñez M, Dostalek J, Knoll W. 2023. Optical and electronic signal stabilization
of plasmonic fiber optic gate electrodes: Towards improved real-time dual-mode
biosensing, Zenodo, 10.5281/ZENODO.7716920.'
mla: 'Hasler, Roger, et al. Optical and Electronic Signal Stabilization of Plasmonic
Fiber Optic Gate Electrodes: Towards Improved Real-Time Dual-Mode Biosensing.
Zenodo, 2023, doi:10.5281/ZENODO.7716920.'
short: R. Hasler, M.-H. Polt, C. Reiner-Rozman, S. Fossati, S. Lee, P. Aspermair,
C. Kleber, M. Ibáñez, J. Dostalek, W. Knoll, (2023).
date_created: 2025-03-07T08:40:58Z
date_published: 2023-07-14T00:00:00Z
date_updated: 2025-03-11T08:00:42Z
day: '14'
ddc:
- '540'
department:
- _id: MaIb
doi: 10.5281/ZENODO.7716920
has_accepted_license: '1'
main_file_link:
- open_access: '1'
url: https://doi.org/10.5281/ZENODO.7716920
month: '07'
oa: 1
oa_version: None
publisher: Zenodo
related_material:
record:
- id: '13968'
relation: used_in_publication
status: public
status: public
title: 'Optical and electronic signal stabilization of plasmonic fiber optic gate
electrodes: Towards improved real-time dual-mode biosensing'
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: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
OA_place: repository
OA_type: green
_id: '19471'
abstract:
- lang: eng
text: 'Fasting initiates a multitude of adaptations to allow survival. Activation
of the hypothalamic–pituitary–adrenal (HPA) axis and subsequent release of glucocorticoid
hormones is a key response that mobilizes fuel stores to meet energy demands1,2,3,4,5.
Despite the importance of the HPA axis response, the neural mechanisms that drive
its activation during energy deficit are unknown. Here, we show that fasting-activated
hypothalamic agouti-related peptide (AgRP)-expressing neurons trigger and are
essential for fasting-induced HPA axis activation. AgRP neurons do so through
projections to the paraventricular hypothalamus (PVH), where, in a mechanism not
previously described for AgRP neurons, they presynaptically inhibit the terminals
of tonically active GABAergic afferents from the bed nucleus of the stria terminalis
(BNST) that otherwise restrain activity of corticotrophin-releasing hormone (CRH)-expressing
neurons. This disinhibition of PVHCrh neurons requires γ-aminobutyric acid (GABA)/GABA-B
receptor signalling and potently activates the HPA axis. Notably, stimulation
of the HPA axis by AgRP neurons is independent of their induction of hunger, showing
that these canonical ‘hunger neurons’ drive many distinctly different adaptations
to the fasted state. Together, our findings identify the neural basis for fasting-induced
HPA axis activation and uncover a unique means by which AgRP neurons activate
downstream neurons: through presynaptic inhibition of GABAergic afferents. Given
the potency of this disinhibition of tonically active BNST afferents, other activators
of the HPA axis, such as psychological stress, may also work by reducing BNST
inhibitory tone onto PVHCrh neurons.'
article_processing_charge: No
article_type: original
author:
- first_name: Amelia May Barnett
full_name: Douglass, Amelia May Barnett
id: de5f6fda-80fb-11ef-996f-a8c4ecd8e289
last_name: Douglass
orcid: 0000-0001-5398-6473
- first_name: Jon M.
full_name: Resch, Jon M.
last_name: Resch
- first_name: Joseph C.
full_name: Madara, Joseph C.
last_name: Madara
- first_name: Hakan
full_name: Kucukdereli, Hakan
last_name: Kucukdereli
- first_name: Ofer
full_name: Yizhar, Ofer
last_name: Yizhar
- first_name: Abhinav
full_name: Grama, Abhinav
last_name: Grama
- first_name: Masahito
full_name: Yamagata, Masahito
last_name: Yamagata
- first_name: Zongfang
full_name: Yang, Zongfang
last_name: Yang
- first_name: Bradford B.
full_name: Lowell, Bradford B.
last_name: Lowell
citation:
ama: Douglass AM, Resch JM, Madara JC, et al. Neural basis for fasting activation
of the hypothalamic–pituitary–adrenal axis. Nature. 2023;620(7972):154-162.
doi:10.1038/s41586-023-06358-0
apa: Douglass, A. M., Resch, J. M., Madara, J. C., Kucukdereli, H., Yizhar, O.,
Grama, A., … Lowell, B. B. (2023). Neural basis for fasting activation of the
hypothalamic–pituitary–adrenal axis. Nature. Springer Nature. https://doi.org/10.1038/s41586-023-06358-0
chicago: Douglass, Amelia M., Jon M. Resch, Joseph C. Madara, Hakan Kucukdereli,
Ofer Yizhar, Abhinav Grama, Masahito Yamagata, Zongfang Yang, and Bradford B.
Lowell. “Neural Basis for Fasting Activation of the Hypothalamic–Pituitary–Adrenal
Axis.” Nature. Springer Nature, 2023. https://doi.org/10.1038/s41586-023-06358-0.
ieee: A. M. Douglass et al., “Neural basis for fasting activation of the
hypothalamic–pituitary–adrenal axis,” Nature, vol. 620, no. 7972. Springer
Nature, pp. 154–162, 2023.
ista: Douglass AM, Resch JM, Madara JC, Kucukdereli H, Yizhar O, Grama A, Yamagata
M, Yang Z, Lowell BB. 2023. Neural basis for fasting activation of the hypothalamic–pituitary–adrenal
axis. Nature. 620(7972), 154–162.
mla: Douglass, Amelia M., et al. “Neural Basis for Fasting Activation of the Hypothalamic–Pituitary–Adrenal
Axis.” Nature, vol. 620, no. 7972, Springer Nature, 2023, pp. 154–62, doi:10.1038/s41586-023-06358-0.
short: A.M. Douglass, J.M. Resch, J.C. Madara, H. Kucukdereli, O. Yizhar, A. Grama,
M. Yamagata, Z. Yang, B.B. Lowell, Nature 620 (2023) 154–162.
date_created: 2025-04-03T12:28:51Z
date_published: 2023-08-03T00:00:00Z
date_updated: 2025-07-10T11:51:40Z
day: '03'
doi: 10.1038/s41586-023-06358-0
extern: '1'
external_id:
pmid:
- '37495689 '
intvolume: ' 620'
issue: '7972'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://pmc.ncbi.nlm.nih.gov/articles/PMC11168300/
month: '08'
oa: 1
oa_version: Submitted Version
page: 154-162
pmid: 1
publication: Nature
publication_identifier:
eissn:
- 1476-4687
issn:
- 0028-0836
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Neural basis for fasting activation of the hypothalamic–pituitary–adrenal axis
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 620
year: '2023'
...
---
OA_place: repository
OA_type: green
_id: '19487'
abstract:
- lang: eng
text: "Fix a non-square integer \U0001D458≠0. We show that the number of curves
\U0001D438\U0001D435:\U0001D466^2=\U0001D465^3+\U0001D458\U0001D435^2 containing
an integral point, where B ranges over positive integers less than N, is bounded
by ≪\U0001D458\U0001D441(log\U0001D441)−1/2+\U0001D716. In particular, this implies
that the number of positive integers \U0001D435≤\U0001D441 such that −3\U0001D458\U0001D435^2
is the discriminant of an elliptic curve over \U0001D444 is o(N). The proof involves
a discriminant-lowering procedure on integral binary cubic forms."
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Yik Tung
full_name: Chan, Yik Tung
id: c4c0afc8-9262-11ed-9231-d8b0bc743af1
last_name: Chan
orcid: 0000-0001-8467-4106
citation:
ama: Chan S. Integral points on cubic twists of Mordell curves. Mathematische
Annalen. 2023;388(3):2275-2288. doi:10.1007/s00208-023-02578-x
apa: Chan, S. (2023). Integral points on cubic twists of Mordell curves. Mathematische
Annalen. Springer Nature. https://doi.org/10.1007/s00208-023-02578-x
chicago: Chan, Stephanie. “Integral Points on Cubic Twists of Mordell Curves.” Mathematische
Annalen. Springer Nature, 2023. https://doi.org/10.1007/s00208-023-02578-x.
ieee: S. Chan, “Integral points on cubic twists of Mordell curves,” Mathematische
Annalen, vol. 388, no. 3. Springer Nature, pp. 2275–2288, 2023.
ista: Chan S. 2023. Integral points on cubic twists of Mordell curves. Mathematische
Annalen. 388(3), 2275–2288.
mla: Chan, Stephanie. “Integral Points on Cubic Twists of Mordell Curves.” Mathematische
Annalen, vol. 388, no. 3, Springer Nature, 2023, pp. 2275–88, doi:10.1007/s00208-023-02578-x.
short: S. Chan, Mathematische Annalen 388 (2023) 2275–2288.
date_created: 2025-04-05T10:50:37Z
date_published: 2023-02-07T00:00:00Z
date_updated: 2025-07-10T11:51:45Z
day: '07'
doi: 10.1007/s00208-023-02578-x
extern: '1'
external_id:
arxiv:
- '2203.11366'
intvolume: ' 388'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2203.11366
month: '02'
oa: 1
oa_version: Preprint
page: 2275-2288
publication: Mathematische Annalen
publication_identifier:
eissn:
- 1432-1807
issn:
- 0025-5831
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Integral points on cubic twists of Mordell curves
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 388
year: '2023'
...
---
_id: '14744'
abstract:
- lang: eng
text: "Sharding distributed ledgers is a promising on-chain solution for scaling
blockchains but lacks formal grounds, nurturing skepticism on whether such complex
systems can scale blockchains securely. We fill this gap by introducing the first
formal framework as well as a roadmap to robust sharding. In particular, we first
define the properties sharded distributed ledgers should fulfill. We build upon
and extend the Bitcoin backbone protocol by defining consistency and scalability.
Consistency encompasses the need for atomic execution of cross-shard transactions
to preserve safety, whereas scalability encapsulates the speedup a sharded system
can gain in comparison to a non-sharded system.\r\nUsing our model, we explore
the limitations of sharding. We show that a sharded ledger with n participants
cannot scale under a fully adaptive adversary, but it can scale up to m shards
where n=c'm log m, under an epoch-adaptive adversary; the constant c' encompasses
the trade-off between security and scalability. This is possible only if the sharded
ledgers create succinct proofs of the valid state updates at every epoch. We leverage
our results to identify the sufficient components for robust sharding, which we
incorporate in a protocol abstraction termed Divide & Scale. To demonstrate the
power of our framework, we analyze the most prominent sharded blockchains (Elastico,
Monoxide, OmniLedger, RapidChain) and pinpoint where they fail to meet the desired
properties."
acknowledgement: The work was partially supported by the Austrian Science Fund (FWF)
through the project CoRaF (grant agreement 2020388).
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Zeta
full_name: Avarikioti, Zeta
last_name: Avarikioti
- first_name: Antoine
full_name: Desjardins, Antoine
id: 06d0c166-aec1-11ee-a7c0-b96e840a602b
last_name: Desjardins
- first_name: Eleftherios
full_name: Kokoris Kogias, Eleftherios
id: f5983044-d7ef-11ea-ac6d-fd1430a26d30
last_name: Kokoris Kogias
- first_name: Roger
full_name: Wattenhofer, Roger
last_name: Wattenhofer
citation:
ama: 'Avarikioti Z, Desjardins A, Kokoris Kogias E, Wattenhofer R. Divide &
Scale: Formalization and roadmap to robust sharding. In: 30th International
Colloquium on Structural Information and Communication Complexity. Vol 13892.
Springer Nature; 2023:199-245. doi:10.1007/978-3-031-32733-9_10'
apa: 'Avarikioti, Z., Desjardins, A., Kokoris Kogias, E., & Wattenhofer, R.
(2023). Divide & Scale: Formalization and roadmap to robust sharding. In 30th
International Colloquium on Structural Information and Communication Complexity
(Vol. 13892, pp. 199–245). Alcalá de Henares, Spain: Springer Nature. https://doi.org/10.1007/978-3-031-32733-9_10'
chicago: 'Avarikioti, Zeta, Antoine Desjardins, Eleftherios Kokoris Kogias, and
Roger Wattenhofer. “Divide & Scale: Formalization and Roadmap to Robust Sharding.”
In 30th International Colloquium on Structural Information and Communication
Complexity, 13892:199–245. Springer Nature, 2023. https://doi.org/10.1007/978-3-031-32733-9_10.'
ieee: 'Z. Avarikioti, A. Desjardins, E. Kokoris Kogias, and R. Wattenhofer, “Divide
& Scale: Formalization and roadmap to robust sharding,” in 30th International
Colloquium on Structural Information and Communication Complexity, Alcalá
de Henares, Spain, 2023, vol. 13892, pp. 199–245.'
ista: 'Avarikioti Z, Desjardins A, Kokoris Kogias E, Wattenhofer R. 2023. Divide
& Scale: Formalization and roadmap to robust sharding. 30th International
Colloquium on Structural Information and Communication Complexity. SIROCCO: Structural
Information and Communication Complexity, LNCS, vol. 13892, 199–245.'
mla: 'Avarikioti, Zeta, et al. “Divide & Scale: Formalization and Roadmap to Robust
Sharding.” 30th International Colloquium on Structural Information and Communication
Complexity, vol. 13892, Springer Nature, 2023, pp. 199–245, doi:10.1007/978-3-031-32733-9_10.'
short: Z. Avarikioti, A. Desjardins, E. Kokoris Kogias, R. Wattenhofer, in:, 30th
International Colloquium on Structural Information and Communication Complexity,
Springer Nature, 2023, pp. 199–245.
conference:
end_date: 2023-06-09
location: Alcalá de Henares, Spain
name: 'SIROCCO: Structural Information and Communication Complexity'
start_date: 2023-06-06
date_created: 2024-01-08T12:56:46Z
date_published: 2023-06-01T00:00:00Z
date_updated: 2025-09-09T14:10:46Z
day: '01'
department:
- _id: ElKo
doi: 10.1007/978-3-031-32733-9_10
external_id:
isi:
- '001292782600010'
intvolume: ' 13892'
isi: 1
language:
- iso: eng
month: '06'
oa_version: None
page: 199-245
publication: 30th International Colloquium on Structural Information and Communication
Complexity
publication_identifier:
eisbn:
- '9783031327339'
eissn:
- 1611-3349
isbn:
- '9783031327322'
issn:
- 0302-9743
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Divide & Scale: Formalization and roadmap to robust sharding'
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 13892
year: '2023'
...
---
_id: '14748'
acknowledged_ssus:
- _id: ScienComp
acknowledgement: We thank the anonymous reviewers and the members of the Visual Computing
Group at ISTA for their helpful comments. This research was supported by the Scientific
Service Units (SSU) of ISTA through resources provided by Scientific Computing,
and was funded in part by the European Union (ERC-2021-COG 101045083 CoDiNA).
article_number: '5'
article_processing_charge: No
author:
- first_name: Yi-Lu
full_name: Chen, Yi-Lu
id: 0b467602-dbcd-11ea-9d1d-ed480aa46b70
last_name: Chen
- first_name: Mickaël
full_name: Ly, Mickaël
id: 6340d7f0-b48d-11eb-b10d-b7487e71d9f1
last_name: Ly
- 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: 'Chen Y-L, Ly M, Wojtan C. Unified treatment of contact, friction and shock-propagation
in rigid body animation. In: Proceedings of the ACM SIGGRAPH/Eurographics Symposium
on Computer Animation. Association for Computing Machinery; 2023. doi:10.1145/3606037.3606836'
apa: 'Chen, Y.-L., Ly, M., & Wojtan, C. (2023). Unified treatment of contact,
friction and shock-propagation in rigid body animation. In Proceedings of the
ACM SIGGRAPH/Eurographics Symposium on Computer Animation. Los Angeles, CA,
United States: Association for Computing Machinery. https://doi.org/10.1145/3606037.3606836'
chicago: Chen, Yi-Lu, Mickaël Ly, and Chris Wojtan. “Unified Treatment of Contact,
Friction and Shock-Propagation in Rigid Body Animation.” In Proceedings of
the ACM SIGGRAPH/Eurographics Symposium on Computer Animation. Association
for Computing Machinery, 2023. https://doi.org/10.1145/3606037.3606836.
ieee: Y.-L. Chen, M. Ly, and C. Wojtan, “Unified treatment of contact, friction
and shock-propagation in rigid body animation,” in Proceedings of the ACM SIGGRAPH/Eurographics
Symposium on Computer Animation, Los Angeles, CA, United States, 2023.
ista: 'Chen Y-L, Ly M, Wojtan C. 2023. Unified treatment of contact, friction and
shock-propagation in rigid body animation. Proceedings of the ACM SIGGRAPH/Eurographics
Symposium on Computer Animation. SCA: Symposium on Computer Animation, 5.'
mla: Chen, Yi-Lu, et al. “Unified Treatment of Contact, Friction and Shock-Propagation
in Rigid Body Animation.” Proceedings of the ACM SIGGRAPH/Eurographics Symposium
on Computer Animation, 5, Association for Computing Machinery, 2023, doi:10.1145/3606037.3606836.
short: Y.-L. Chen, M. Ly, C. Wojtan, in:, Proceedings of the ACM SIGGRAPH/Eurographics
Symposium on Computer Animation, Association for Computing Machinery, 2023.
conference:
end_date: 2023-08-06
location: Los Angeles, CA, United States
name: 'SCA: Symposium on Computer Animation'
start_date: 2023-08-04
corr_author: '1'
date_created: 2024-01-08T13:00:24Z
date_published: 2023-08-01T00:00:00Z
date_updated: 2025-04-14T12:58:27Z
day: '01'
department:
- _id: ChWo
doi: 10.1145/3606037.3606836
language:
- iso: eng
month: '08'
oa_version: None
project:
- _id: 34bc2376-11ca-11ed-8bc3-9a3b3961a088
grant_number: '101045083'
name: Computational Discovery of Numerical Algorithms for Animation and Simulation
of Natural Phenomena
publication: Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation
publication_identifier:
isbn:
- '9798400702686'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
related_material:
record:
- id: '15292'
relation: other
status: public
status: public
title: Unified treatment of contact, friction and shock-propagation in rigid body
animation
type: conference_abstract
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
_id: '14749'
abstract:
- lang: eng
text: We unveil a powerful method for the stabilization of laser injection locking
based on sensing variations in the output beam ellipticity of an optically seeded
laser. The effect arises due to an interference between the seeding beam and the
injected laser output. We demonstrate the method for a commercial semiconductor
laser without the need for any internal changes to the readily operational injection
locked laser system that was used. The method can also be used to increase the
mode-hop free tuning range of lasers, and has the potential to fill a void in
the low-noise laser industry.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Umang
full_name: Mishra, Umang
id: 4328fa4c-f128-11eb-9611-c107b0fe4d51
last_name: Mishra
- first_name: Vyacheslav
full_name: Li, Vyacheslav
id: 3A4FAA92-F248-11E8-B48F-1D18A9856A87
last_name: Li
- first_name: Sebastian
full_name: Wald, Sebastian
id: 133F200A-B015-11E9-AD41-0EDAE5697425
last_name: Wald
orcid: 0000-0002-5869-1604
- first_name: Sofya
full_name: Agafonova, Sofya
id: 09501ff6-dca7-11ea-a8ae-b3e0b9166e80
last_name: Agafonova
orcid: 0000-0003-0582-2946
- first_name: Fritz R
full_name: Diorico, Fritz R
id: 2E054C4C-F248-11E8-B48F-1D18A9856A87
last_name: Diorico
orcid: 0000-0002-4947-8924
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
citation:
ama: Mishra U, Li V, Wald S, Agafonova S, Diorico FR, Hosten O. Monitoring and active
stabilization of laser injection locking using beam ellipticity. Optics Letters.
2023;48(15):3973-3976. doi:10.1364/ol.495553
apa: Mishra, U., Li, V., Wald, S., Agafonova, S., Diorico, F. R., & Hosten,
O. (2023). Monitoring and active stabilization of laser injection locking using
beam ellipticity. Optics Letters. Optica Publishing Group. https://doi.org/10.1364/ol.495553
chicago: Mishra, Umang, Vyacheslav Li, Sebastian Wald, Sofya Agafonova, Fritz R
Diorico, and Onur Hosten. “Monitoring and Active Stabilization of Laser Injection
Locking Using Beam Ellipticity.” Optics Letters. Optica Publishing Group,
2023. https://doi.org/10.1364/ol.495553.
ieee: U. Mishra, V. Li, S. Wald, S. Agafonova, F. R. Diorico, and O. Hosten, “Monitoring
and active stabilization of laser injection locking using beam ellipticity,” Optics
Letters, vol. 48, no. 15. Optica Publishing Group, pp. 3973–3976, 2023.
ista: Mishra U, Li V, Wald S, Agafonova S, Diorico FR, Hosten O. 2023. Monitoring
and active stabilization of laser injection locking using beam ellipticity. Optics
Letters. 48(15), 3973–3976.
mla: Mishra, Umang, et al. “Monitoring and Active Stabilization of Laser Injection
Locking Using Beam Ellipticity.” Optics Letters, vol. 48, no. 15, Optica
Publishing Group, 2023, pp. 3973–76, doi:10.1364/ol.495553.
short: U. Mishra, V. Li, S. Wald, S. Agafonova, F.R. Diorico, O. Hosten, Optics
Letters 48 (2023) 3973–3976.
corr_author: '1'
date_created: 2024-01-08T13:01:46Z
date_published: 2023-07-21T00:00:00Z
date_updated: 2025-12-16T12:52:55Z
day: '21'
department:
- _id: OnHo
doi: 10.1364/ol.495553
external_id:
arxiv:
- '2212.01266'
isi:
- '001051044600008'
intvolume: ' 48'
isi: 1
issue: '15'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2212.01266
month: '07'
oa: 1
oa_version: Preprint
page: 3973-3976
publication: Optics Letters
publication_identifier:
eissn:
- 1539-4794
issn:
- 0146-9592
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
scopus_import: '1'
status: public
title: Monitoring and active stabilization of laser injection locking using beam ellipticity
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 48
year: '2023'
...