20–24 Apr 2026
Palazzo del Castelletto
Europe/Rome timezone

Smooth Circle Covering with a Physical Measure on a Hyperbolic Repelling Fixed Point

22 Apr 2026, 12:30
25m
Aula Dini (Palazzo del Castelletto)

Aula Dini

Palazzo del Castelletto

Via del Castelletto, 17/1, 56126 Pisa PI

Speaker

Rubio Gunawan The (SISSA)

Description

We construct an example of a smooth circle covering map topologically conjugate to the doubling map, such that it has a physical measure supported on a hyperbolic repelling fixed point. By relaxing the smooth condition at a single point, we also construct an example where the basin of the physical measure has full measure. A key technical step is a realization lemma of independent interest, which gives a canonical way to construct a full branch map given its induced map.

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