David Chodounsky got his PhD in 2011 at the Charles University in Prague under the supervision of P. Simon and B. Balcar.

Starting October 2011 he works as a postdoctoral researcher at the Institute of Mathematics of the Czech Academy of Sciences and in July 2012 – June 2013 he is a postdoctoral fellow in Toronto.

His research is focused mainly on substructures of the powerset of integers.


Recent and upcoming talks by David Chodounsky

David Chodounsky: How to kill a P-point

Invitation to the Logic Seminar at the National University of Singapore Date: Wednesday, 14 March 2018, 17:00 hrs Room: S17#04-06, Department of Mathematics, NUS Speaker: David Chodounsky Title: How to kill a P-point URL: http://www.comp.nus.edu.sg/~fstephan/logicseminar.html Abstract: The existence of P-points (also called P-ultrafilters) is independent of the axioms of set theory ZFC. continue reading…

Novi Sad Conference in Set Theory and General Topology, Novi Sad, July 2-5, 2018

The international conference “Novi Sad Conference in Set Theory and General Topology” SETTOP 2018 that will take place from July 2nd to July 5th 2018 in Novi Sad. Confirmed invited speakers: David Asperó (Norwich) David Chodounský (Prague) Natasha Dobrinen (Denver) Vera Fischer (Vienna) Heike Mildenberger (Freiburg) Dilip Raghavan (Singapore) Philip Schlicht (Bonn) Stevo Todorčević (Toronto / Paris) Program Committee: Joan Bagaria (Barcelona) Mirna Džamonja (Norwich) Sy David Friedman (Vienna) István Juhász (Budapest) Miloš Kurilić (Novi Sad) Participants can also present short talks. continue reading…

2nd Pan Pacific International Conference on Topology and Applications, November 13–17, 2017

The 2nd Pan Pacific International Conference on Topology and Applications (2nd PPICTA) had a special session in Set Theory, to which we now provide the slides. (50min. talks) 1. David Chodounsky (Institute of Mathematics CAS) Sacks indestructible ultrafilters and the HL property 2. continue reading…

David Chodounsky: A generalization of the Solovay–Tennenbaum theorem

Dear all, The seminar meets on Wednesday November 29th at 11:00 in the Institute of Mathematics CAS, Zitna 25, seminar room, 3rd floor, front building. Program: David Chodounsky will present a generalization of the Solovay–Tennenbaum theorem; Assuming a diamond principle and given a suitable class PHI of ccc posets, there is a poset in the class PHI which forces MA(PHI) and c=kappa. continue reading…

Iterated Forcing Theory and Cardinal Invariants, Kyoto, November 6 – 9, 2017

RIMS Workshop on Iterated Forcing Theory and Cardinal Invariants November 6 – 9, 2017 at the Research Institute for Mathematical Sciences (RIMS), Kyoto University ORGANIZER: Jörg Brendle (Kobe) MINICOURSE: Diego Mejía (Shizuoka)  Recent (and not that recent) forcing techniques on finite support iterations SPEAKERS: David Asperó (Norwich) Few new reals Fabiana Castiblanco (Münster) David Chodounský (Praha) Monroe Eskew (Wien) Local saturation at every successor cardinal JiaLiang He (Chengdu) An elementary proof of p = t Daisuke Ikegami (Tokyo) On supercompactness of $\omega_1$ Hiromi Ishii (Tsukuba) Reflection Principle and construction of saturated ideals on $\mathcal P_{\omega_1}(\lambda)$ Yo Matsubara (Nagoya) On the existence of skinny stationary subsets Tadatoshi Miyamoto (Nagoya) No Suslin trees but a non-special Aronszajn tree exists by a side condition method Francesco Parente (Norwich) Keisler’s order via Boolean ultrapowers André Rodrigues (Kobe) Hiroshi Sakai (Kobe) On models generated by uncountable indiscernible sequences Dmitri Shakhmatov (Matsuyama) Compactness-like properties de ned by open-point games and maximal almost disjoint families Toshimichi Usuba (Tokyo) $G_\delta$ modification and large cardinals Teruyuki Yorioka (Shizuoka) Aspero-Mota’s finitely proper forcing axiom and k-entangled sets of reals Yasuo Yoshinobu (Nagoya) A further variation of the Banach-Mazur game and forcing axioms continue reading…

Set Theory, Model Theory and Applications (In memory of Mati Rubin), Eilat, April 22-26, 2018

RESEARCH WORKSHOP OF THE ISRAEL SCIENCE FOUNDATION Set Theory, Model Theory and Applications (In memory of Mati Rubin)   The international conference “Set Theory, Model Theory and Applications,” in memory of our late colleague Mati Rubin, will take place at the Eilat Campus of Ben-Gurion University of the Negev (Israel) from 22 – 26 April, 2018. continue reading…

Frontiers of Selection Principles, Warsaw, Aug 20 – Sep 1, 2017

The conference Frontiers of Selection Principles, celebrating the 60th birthday of Marion Scheepers will take place at the Dewajtis Campus, Bielanski forest, Warsaw, 20.8-1.9, 2017: 20.8-25.8 tutorial, 26.8 excursion, 27.8-1.9 conference. continue reading…

David Chodounsky: Combinatorial properties of the Mathias-Prikry forcing

Tuesday, October 25, 2016, 17:15 Wrocław University of Technology, 215 D-1 Speaker: David Chodounsky (Czech Academy of Sciences) Title: Combinatorial properties of the Mathias-Prikry forcing Abstract: I will review basic fact and results about the Mathis-Prikry forcing and I will present and prove sufficient condition for genericity of reals with respect to this poset. continue reading…

Infinite Combinatorics and Forcing Theory, Kyoto, November 28 – December 1, 2016

RIMS Workshop on Infinite Combinatorics and Forcing Theory November 28 – December 1, 2016 at the Research Institute for Mathematical Sciences (RIMS), Kyoto University The workshop website: http://www.ipc.shizuoka.ac.jp/~styorio/rims16/index.html Tutorial speakers: Natasha Dobrinen (University of Denver), Ramsey theory in forcing Yinhe Peng (University of Toronto), Negative partition relations on $\omega_1$ Speakers: Jörg Brendle (Kobe University), Maximal trees Fabiana Castiblanco (Universität Münster), Preserving sharps by tree forcings David Chodounsky (Institute of Mathematics of the Czech Academy of Science), Mathias-Prikry forcing and generic ultrafilters Sakaé Fuchino (Kobe University), Reflection theorems on non-existence of orthonormal bases of pre-Hilbert spaces Daisuke Ikegami (Tokyo Denki University), Boolean valued second order logic Diego A. continue reading…

David Chodounsky: Y-cc and Y-proper forcing notions

Tuesday, December 8, 2015, 17:15 Wrocław University of Technology, 215 D-1 Speaker: David Chodounsky (Czech Academy of Sciences) Title: Y-cc and Y-proper forcing notions Abstract: In our recent joint work with J. continue reading…