When is the variance of one observable less than or equal to that of another with respect to all quantum states?
GP Gehér, N Miheisi
International Mathematics Research Notices 2024 (3), 1868-1893
The isometry group of Wasserstein spaces: the Hilbertian case
GP Gehér, T Titkos, D Virosztek
Journal of the London Mathematical Society 106, 3865-3894 (2022)
The structure of maps on the space of all quantum pure states that preserve a fixed quantum angle
GP Gehér, M Mori
International Mathematics Research Notices 2022 (16), 12003-12029
Coexistency on Hilbert space effect algebras and a characterisation of its symmetry transformations
GP Gehér, P Šemrl
Communications in Mathematical Physics 379, 1077-1112 (2020)
Isometric study of Wasserstein spaces–the real line
G Gehér, T Titkos, D Virosztek
Transactions of the American Mathematical Society 373, 5855-5883 (2020)
Symmetries of projective spaces and spheres
GP Gehér
International Mathematics Research Notices 2020 (7), 2205-2240
Isometries of Grassmann spaces, II
GP Gehér, P Šemrl
Advances in Mathematics 332, 287-310 (2018)
Wigner's theorem on Grassmann spaces
GP Gehér
Journal of Functional Analysis 273, 2994-3001 (2017)
Surjective Lévy-Prokhorov Isometries
GP Gehér, T Titkos
ANNALI DELLA SCUOLA NORMALE SUPERIORE DI PISA-CLASSE DI SCIENZE, 1-19 (2017)
Is it possible to determine a point lying in a simplex if we know the distances from the vertices?
GP Gehér
Journal of Mathematical Analysis and Applications 439, 651-663 (2016)
This work won the journal's JMAA Ames Award for best pure math paper in the year.
Isometries of Grassmann spaces
GP Gehér, P Šemrl
Journal of Functional Analysis 270, 1585-1601 (2016)
An elementary proof for the non-bijective version of Wigner's theorem
GP Gehér
Physics Letters A 378, 2054–2057 (2014)