Koudjinan, Edmond, and Vadim Kaloshin. “On Some Invariants of Birkhoff Billiards under Conjugacy.”https://doi.org/10.1134/S1560354722050021__Regular and Chaotic Dynamics. Springer Nature, 2022.https://doi.org/10.1134/S1560354722050021 .
LibreCat: https://research-explorer.ista.ac.at/record/12145
DOI: 10.1134/S1560354722050021
WoS: 000865267300002
arXiv: 2105.14640

Kaloshin, Vadim, and Edmond Koudjinan. “Non Co-Preservation of the 1/2 and  1/(2l+1)-Rational Caustics along Deformations of Circles,” 2021.
LibreCat: https://research-explorer.ista.ac.at/record/9435

Chierchia, Luigi, and Edmond Koudjinan. “V.I. Arnold’s ‘“Global”’ KAM Theorem and Geometric Measure Estimates.”https://doi.org/10.1134/S1560354721010044__Regular and Chaotic Dynamics. Springer Nature, 2021.https://doi.org/10.1134/S1560354721010044 .
LibreCat: https://research-explorer.ista.ac.at/record/8689
DOI: 10.1134/S1560354721010044
WoS: 000614454700004
arXiv: 2010.13243

Golmakani, Ali, Edmond Koudjinan, Stefano Luzzatto, and Pawel Pilarczyk. “Rigorous Numerics for Critical Orbits in the Quadratic Family.”https://doi.org/10.1063/5.0012822__Chaos. AIP, 2020.https://doi.org/10.1063/5.0012822 .
LibreCat: https://research-explorer.ista.ac.at/record/8694
DOI: 10.1063/5.0012822
arXiv: 2004.13444

Koudjinan, Edmond. “A KAM Theorem for Finitely Differentiable Hamiltonian Systems.”https://doi.org/10.1016/j.jde.2020.03.044__Journal of Differential Equations. Elsevier, 2020.https://doi.org/10.1016/j.jde.2020.03.044 .
LibreCat: https://research-explorer.ista.ac.at/record/8691
DOI: 10.1016/j.jde.2020.03.044
arXiv: 1909.04099

Chierchia, Luigi, and Edmond Koudjinan. “V. I. Arnold’s ‘Pointwise’ KAM Theorem.”https://doi.org/10.1134/S1560354719060017__Regular and Chaotic Dynamics. Springer, 2019.https://doi.org/10.1134/S1560354719060017 .
LibreCat: https://research-explorer.ista.ac.at/record/8693
DOI: 10.1134/S1560354719060017
arXiv: 1908.02523