Rényi Institute, Budapest, Hungary

**Organizers:****István Juhász (chair)**, Alfréd Rényi Institute of Mathematics, juhasz at renyi.hu**Gyula Katona (co-chair)**, Alfréd Rényi Institute of Mathematics, ohkatona at renyi.hu**Péter Komjáth (co-chair)**, Eotvos University**Péter Csorba**, Alfréd Rényi Institute of Mathematics, csp at renyi.hu**Ervin Gyori**, Alfréd Rényi Institute of Mathematic, gyori at renyi.hu**Gábor Sági (secretary)**, Alfréd Rényi Institute of Mathematic, sagi at renyi.hu**Lajos Soukup**, Alfréd Rényi Institute of Mathematic, soukup at renyi.hu

Monday, June 13, 20119:00 - 10:00 Registration 10:00 - 10:30 Opening - coffee break 11:00 - 11:50 The large finite and the infinite László Lovász 12:00 - 12:50 Classifying Ergodic Measure Preserving Transformations Matthew Foreman 12:50 - 14:30 lunch break 14:30 - 15:20 Stationary reflection and two cardinal tree properties Boban Velickovic 15:30 - 15:50 Clopen graphs and their finite induced subgraphs Stefan Geschke 16:00 - 16:20 Universal minimal flows for groups of automorphisms of homogeneous relational structures Dana Bartosová 16:20 - 17:00 coffee break 17:00 - 17:20 Asymmetric partition relations in the countably infinite case Thilo Weinert 17:30 - 17:50 On certain finite graphs without large complete and empty subgraphs which are universal Gábor SágiTuesday, June 14, 20119:00 - 9:50 Step up, here come Erdos and Hajnal! János Pach 10:00 - 10:50 The diameter of symmetric groups Ákos Seress 10:50 - 11:30 coffee break 11:30 - 11:50 On the chromatic generalization of the Erdos-Szekeres problem with various numbers of internal points Vitaliy Koshelev 12:00 - 12:20 On dividing sets into parts of smaller diameters Andrei M. Raigorodskii 12:30 - 12:50 On densest sets avoiding unit distance in spaces of small dimension Mariya V. Titova 12:50 - 14:30 lunch break 14:30 - 15:20 Menachem Magidor - tba 15:30 - 16:20 A combinatorial analysis of the uncoditional basic sequence problem Stevo Todorcevic 16:20 - 17:00 coffee break 17:00 - 17:20 Some cardinal invariants related to analytic quotients Jana Flasková 17:30 - 17:50 Thin coideals Igor Protasov 18:00 - 18:20 Canonization theorems on Ramsey spaces and their application to the Tukey theory of ultrafilters Natasha Dobrinen 18:30 - 18:50 Quasi-selective and weakly Ramsey ultrafilters Marco Forti 19:00 - 21:00 wine and cheese partyWednesday, June 15, 20119:00 - 9:50 Non-P-points and forcing Saharon Shelah 10:00 - 10:50 Menachem Kojman - tba 10:50 - 11:30 coffee break 11:30 - 11:50 A generalization of Roitman's theorem for cardinal sequences Juan Carlos Martínez 12:00 - 12:20 Cardinal functions F?(X) and t?(X) for H-closed spaces Andrei Catalioto 12:30 - 12:50 Measures on Bell space Piotr Borodulin-Nadzieja 12:50 - 14:30 lunch break 14:30 - social events (sightseeing) more info at the registration deskThursday, June 16, 20119:00 - 9:50 The Hajnal-Szemerédi theorem: extensions and variations Alexandr Kostochka 10:00 - 10:50 Pósa's conjecture and related problems Hal Kierstead 10:50 - 11:30 coffee break 11:30 - 11:50 On Hajnal's triangle free game Csaba Biró 12:00 - 12:20 András Hajnal's "Clique Collection Lemma" revisited Vadim E. Levit 12:30 - 12:50 The chromatic number of a normed space Andrey B. Kupavskii 12:50 - 14:30 lunch break 14:30 - 15:20 Universal ultrahomogeneous metric spaces Norbert Sauer 15:30 - 16:20 Partitions and trees Jean Larson 16:20 - 16:45 coffee break 16:45 - 17:05 History of infinity in set theory Saeed Seyed Agha Banihashemi 17:10 - 17:30 Delta-open sets and mappings in topological spaces Raja Mohammad Latif 17:35 - 17:55 Some properties of multidimensional intersection matrices Armenak Gasparyan 18:00 - 18:20 Hypertournaments-scores and losing scores Shariefuddin Pirzada 19:00 banquetFriday, June 17, 20119:00 - 9:50 Combinatorics and large cardinals Sy-David Friedman 10:00 - 10:20 On hypergraph cliques with chromatic number 3 Danila D. Cherkashin 10:30 - 10:50 On Schur's theorem on arithmetic progressions Anastasia Rozovskaya 10:50 - 11:30 coffee break 11:30 - 11:50 On the Erdos-Hajnal problem in the case of three colors Dmitry A. Shabanov 12:00 - 12:20 On zero-one laws for random graphs Maksim E. Zhukovskii 12:30 - 12:50 On connectivity of random distance graphs of special type Andrey R. Yarmukhametov 12:50 - 14:30 lunch break 14:30 - 14:50 Borel conjecture and dual Borel conjecture (and other variants of the Borel conjecture) Wolfgang Wohofsky 15:00 - 15:20 Forcing related convergences of sequences on complete Boolean algebras Aleksandar Pavlovic 15:30 - 15:50 A game on Boolean algebras Boris Sobot 15:50 - 16:30 coffee break 16:30 - 17:20 Long arithmetic progressions in sumsets Endre Szemerédi 17:30 - 18:20 Rainbow colourings Lajos Soukup

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Document last modified on June 10, 2011.