2023

Gehér, G. P., Titkos, T. and Virosztek, D. (2023) Isometric rigidity of Wasserstein tori and spheres. Mathematika, 69 (1). pp. 20-32. ISSN 2041-7942 doi: https://doi.org/10.1112/mtk.12174

2022

Gehér, G. P., Titkos, T. and Virosztek, D. (2022) The isometry group of Wasserstein spaces: the Hilbertian case. Journal of the London Mathematical Society, 106 (4). pp. 3865-3894. ISSN 1469-7750 doi: https://doi.org/10.1112/jlms.12676

Gehér, G. P. and Mori, M. (2022) The structure of maps on the space of all quantum pure states that preserve a fixed quantum angle. International Mathematics Research Notices, 2022 (16). rnab040. ISSN 1687-0247 doi: https://doi.org/10.1093/imrn/rnab040

2020

Geher, G. P. and Semrl, P. (2020) Coexistency on Hilbert space effect algebras and a characterisation of its symmetry transformations. Communications in Mathematical Physics, 379. pp. 1077-1112. ISSN 1432-0916 doi: https://doi.org/10.1007/s00220-020-03873-3

Brightmore, L., Gehér, G. P., Its, A. R., Korepin, V., Mezzadri, F., Mo, M. Y. and Virtanen, J. (2020) Entanglement entropy of two disjoint intervals separated by one spin in a chain of free fermion. Journal of Physics A: Mathematical and Theoretical, 53. 345303. ISSN 1751-8113 doi: https://doi.org/10.1088/1751-8121/ab9cf2

Gehér, G. P., Titkos, T. and Virosztek, D. (2020) Isometric study of Wasserstein spaces - the real line. Transactions of the American Mathematical Society, 373 (8). pp. 5855-5883. ISSN 1088-6850 doi: https://doi.org/10.1090/tran/8113

Geher, G. (2020) Symmetries of projective spaces and spheres. International Mathematics Research Notices, 2020 (7). pp. 2205-2240. ISSN 1073-7928 doi: https://doi.org/10.1093/imrn/rny100

Gehér, G., Tarcsay, Z. and Titkos, T. (2020) Maps preserving absolute continuity and singularity of positive operators. New York Journal of Mathematics, 26. pp. 129-137. ISSN 1076-9803

2019

Geher, G. P., Titkos, T. and Virosztek, D. (2019) On isometric embeddings of Wasserstein spaces - the discrete case. Journal of Mathematical Analysis and Applications, 480 (2). 123435. ISSN 0022-247X doi: https://doi.org/10.1016/j.jmaa.2019.123435

Geher, G. and Titkos, T. (2019) A characterisation of isometries with respect to the Levy-Prokhorov metric. Annali della Scuola Normale Superiore di Pisa. Classe di Scienze. Serie V, XIX (2). pp. 655-677. doi: https://doi.org/10.2422/2036-2145.201702_011

2018

Geher, G. P. and Semrl, P. (2018) Isometries of Grassmann spaces, II. Advances in Mathematics, 332 (9). pp. 287-310. ISSN 1090-2082 doi: https://doi.org/10.1016/j.aim.2018.05.012

2017

Chen, H.-Y., Geher, G. P., Liu, C.-N., Molnár, L., Virosztek, D. and Wong, N.-C. (2017) Maps on positive definite operators preserving the quantum χ2α-divergence. Letters in Mathematical Physics, 107 (12). pp. 2267-2290. ISSN 0377-9017 doi: https://doi.org/10.1007/s11005-017-0989-0

Geher, G. P. (2017) Wigner's theorem on Grassmann spaces. Journal of Functional Analysis, 273 (9). pp. 2994-3001. ISSN 0022-1236 doi: https://doi.org/10.1016/j.jfa.2017.06.011

2016

Gehér, G. P. (2016) Is it possible to determine a point lying in a simplex if we know the distances from the vertices? Journal of Mathematical Analysis and Applications, 439 (2). pp. 651-663. ISSN 0022-247X doi: https://doi.org/10.1016/j.jmaa.2016.03.024

2015

Gehér, G. P. (2015) Asymptotic limits of operators similar to normal operators. Proceedings of the American Mathematical Society, 143 (11). pp. 4823-4834. ISSN 0002-9939 doi: https://doi.org/10.1090/proc/12632

2014

Gehér, G. P. (2014) An elementary proof for the non-bijective version of Wigner's theorem. Physics Letters A, 378 (30-31). pp. 2054-2057. ISSN 0375-9601 doi: https://doi.org/10.1016/j.physleta.2014.05.039