PC Seminar: New results and problems in the ergodic theory of g-measures

Date
4 December 2025, 10:15–11:30
Location
Ångström Laboratory, 64119
Type
Seminar
Lecturer
Anders Öberg
Organiser
Matematiska institutionen
Contact person
Sascha Troscheit

Anders Öberg gives this seminar. Welcome!

Abstract: I present some new results and problems on g-measures with my collaborators Noam Berger (Munich) and Anders Johansson (Gävle). The g-mensurers can be viewed as stationary distributions on chains on fiinitely many symbols with a dependence on the infinite past. There is also the interpretation of a one-sided Ising model with long range interactions. Also, there is a close coonection to invariant measures for different dynamical systems, including iterated function systems.

I will in particular discuss uniqueness and mixing properties of g-measures, as well as their entropies.

This is a seminar in our seminar series on Probability and Combinatorics (PC).

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