Mathematics Research Reports, Volume 3 (2022)

Rigidity and flexibility of entropies of boundary maps associated to Fuchsian groups

Adam Abrams; Svetlana Katok; Ilie Ugarcovici

p. 1-19

Towards Brin’s conjecture on frame flow ergodicity: new progress and perspectives

Mihajlo Cekić; Thibault Lefeuvre; Andrei Moroianu; Uwe Semmelmann

p. 21-34

Preservers of totally positive kernels and Pólya frequency functions

Alexander Belton; Dominique Guillot; Apoorva Khare; Mihai Putinar

p. 35-56

Local rigidity for hyperbolic toral automorphisms

Boris Kalinin; Victoria Sadovskaya; Zhenqi Jenny Wang

p. 57-68