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math.SP2026
Bouncing-ball modes in ergodic billiards
Zhenhao Li, Maciej Zworski
We show that for a horizontally stretched Bunimovich billiard, for almost every stretching parameter, there exists a sequence of eigenfunctions concentrating in the rectangular par…
math.AP2026
Continuity equation on metric spaces via measure-valued derivations and BV-Wasserstein curves
Ehsan Abedi, Zhenhao Li, Timo Schultz
We introduce a notion of continuity equation on metric spaces that is capable of describing curves of probability measures which are absolutely continuous, and more generally of bo…