Sigma-porosity and infinite games

Prelegent(ci)

Martin Dolezal

Afiliacja

University of Warsaw

Termin

29 marca 2017 16:15

Pokój

p. 5050

Seminarium

Seminarium „Topologia i teoria mnogości”

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We introduce an infinite game characterizing various types of sigma-porosity for Souslin sets in terms of winning strategies. We use the game to prove and reprove some new and older inscribing theorems for sigma-ideals of sigma-porous type in locally compact metric spaces. This is based on a joint work with D. Preiss and M. Zelený.

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