Miroslav Zeleny: Games and sigma-porosity

Week 2, Monday June 22, 14:10-15:00

Characterizations of sigma-ideals of sigma-porous type via infinite games will be presented. Earlier results of J. Zapletal will be our starting point. Using these characterizations we infer some results on inscribing ``big'' compact sets into ``big'' analytic sets.
This is a joint work with M. Dolezal.