Recent and upcoming talks by Zoltan Vidnyanszki

Zoltán Vidnyánszky: Borel chromatic numbers: finite vs infinite

KGRC Research Seminar – 2017-06-08 at 4pm. Speaker: Zoltán Vidnyánszky (York University, Toronto, Canada) Abstract: One of the most interesting results of Borel graph combinatorics is the $G_0$ dichotomy, i. e., the fact that a Borel graph has uncountable Borel chromatic number if and only if it contains a Borel homomorphic image of a graph called $G_0$. continue reading…

Zoltán Vidnyánszky: Anti-basis results for graphs of infinite Borel chromatic number

Place: Fields Institute (Room 210) Date: March 24, 2017 (13:30-15:00) Speaker: Zoltán Vidnyánszky, York University Title: Anti-basis results for graphs of infinite Borel chromatic number Abstract: One of the most interesting results of Borel graph combinatorics is the $G_0$ dichotomy, i. continue reading…

Zoltan Vidnyanszky: Characterization of order types representable by Baire class 1 functions

Place: Fields Institute (Room 210) Date: September 30th, 2016 (13:30-15:00) Speaker: Zoltan, Vidnyanszky, York University Title: Characterization of order types representable by Baire class 1 functions Abstract: Let $\mathcal{F}$ be a family of real valued functions on a Polish space $X$. continue reading…

4th European Set Theory Conference, July 15 – 18, 2013

The 4th European Set Theory Conference will be held in Mon St Benet, near Barcelona, on 15-18 July 2013. Mostowski lecture: Adam Krawczyk (Warsaw): Andrzej Mostowski Centenary. Hausdorff Medal lecture: Hugh Woodin Tutorials: Moti Gitik (Tel Aviv): Forcing and cardinal arithmetic Plenary lectures: Laura Fontanella Menachem Magidor Michael Rathjen John Steel Philip Welch Invited lectures: Alessandro Andretta: The density point property. continue reading…