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Recent seminar announcements
 Hossein Lamei Ramandi: $\Sigma^2_2$absoluteness Toronto Set Theory Seminar
 Benjamin Vejnar – Complexity of the homeomorphism relation between compact spaces Kurt Godel Research Center
 Sakae Fuchino: Reflection Principles formulated as LöwenheimSkolem Theorems for stationary logics and the Continuum Problem Bristol Logic Seminar
 Keita Yokoyama: Ekeland’s variational principle in reverse mathematics NUS logic seminar
 Kaethe Minden: Split Principles and Splitting Families Prague Set Theory Seminar
 Marcin Sabok: Measurable Hall’s theorem for actions of Z^n Toronto Set Theory Seminar
 Moritz Müller: Forcing against bounded arithmetic Kurt Godel Research Center
 Frank Stephan: Lampligher groups and automata NUS logic seminar
 Tomasz Weiss: Accessible points, harmonic measure and the Riemann mapping IMPAN working group in applications of set theory
 Menachem Magidor: Omitting types in the logic of metric structures Israeli Logic Talks
Upcoming conferences

Talks by venue
 Barcelona Set Theory Seminar (RSS)
 Boise Set Theory Seminar (RSS)
 Bonn Logic Seminar (RSS)
 Bristol Logic Seminar (RSS)
 Budapest Logic Seminar (RSS)
 Carnegie Mellon Logic Seminar (RSS)
 Dartmouth Logic Seminar (RSS)
 IMPAN working group in applications of set theory (RSS)
 Israeli Logic Talks (RSS)
 Kurt Godel Research Center (RSS)
 Logic Seminar in Turin (RSS)
 Michigan Logic Seminar (RSS)
 Morelia Topology and Set Theory Seminar (RSS)
 New York Logic Seminars (RSS)
 NUS logic seminar (RSS)
 Prague Set Theory Seminar (RSS)
 Rutgers Logic Seminar (RSS)
 Toronto Set Theory Seminar (RSS)
 UC Irvine Set Theory Seminar (RSS)
 Wrocław University of Technology (RSS)
Talks by speaker
Alan Dow Alekos Kechris Aleksander Cieślak Aleksandra Kwiatkowska Alessandro Vignati Alexei Kolesnikov Andre Nies Andreas Blass Andrés Caicedo Andrés Villaveces Andrew BrookeTaylor Andrew Marks Andy Zucker Antonio Avilés Anush Tserunyan Ari Brodsky Arthur Apter Arturo Antonio Martinez Asaf Karagila Asger Tornquist Ashutosh Kumar Assaf Hasson Assaf Rinot Barnabas Farkas Benjamin Miller Bill Chen Bill Mitchell Boban Velickovic Borisa Kuzeljevic Brent Cody Burak Kaya Carlos Di Prisco Carlos MartinezRanero Charles Morgan Chris Eagle Chris LambieHanson Christian Rosendal Christina Brech Clinton Conley Daisuke Ikegami Damian Sobota Dana Bartošová Daniel Soukup David Aspero David Chodounsky David J. Fernández Bretón David Marker David Milovich David Schrittesser Diana Carolina Montoya Diana Ojeda Diego Alejandro Mejia Dikran Dikranjan Dilip Raghavan Dima Sinapova Egbert Thümmel Erez Shochat Erin Carmody François Dorais Frank Stephan Franklin Tall Fulgencio Lopez Garrett Ervin Giorgio Laguzzi Gregory Cherlin Grigor Sargsyan Grzegorz Plebanek Gunter Fuchs Heike Mildenberger Hiroshi Sakai Hugh Woodin Ilijas Farah Ioannis Souldatos István Juhász Itay Neeman James Cummings Jan Grebík Jan van Mill Jay Williams Jean Larson Jindra Zapletal Jing Zhang Joan Bagaria Joel David Hamkins John Baldwin John Clemens John Krueger John Steel Jonathan Verner Jordi LopezAbad Jörg Brendle Jose Iovino Jouko Väänänen Julien Melleray Juliette Kennedy Juris Steprans Justin Moore K. P. Hart Kaethe Minden Konstantinos Tyros Lajos Soukup Laura Fontanella Leandro Aurichi Liljana Babinkostova Liuzhen Wu Luca Motto Ros Luz María García Ávila Lynn Scow Lyubomyr Zdomskyy Marcin Michalski Marcin Sabok Marion Scheepers Martin Goldstern Martin Zeman Martino Lupini Maryanthe Malliaris Masaru Kada Matteo Viale Matthew D. Foreman Melvin Fitting Menachem Kojman Menachem Magidor Merlin Carl Michael Hrusak Michal Doucha Miguel Angel Mota Miha Habic Mikhail Tkachenko Miodrag Sokic Mirna Džamonja Miyamoto Tadatoshi Monroe Eskew Moti Gitik Nam Trang Natasha Dobrinen Norman Perlmutter Omer Ben Neria Omer Mermelstein Osvaldo Guzman Osvaldo Guzmán González Paul Larson Paul McKenney Peng Yinhe Peter Holy Peter Koellner Peter Koepke Peter Krautzberger Petr Simon Philip Welch Philipp Lücke Philipp Schlicht Piotr BorodulinNadzieja Piotr Koszmider Ralf Schindler Randall Holmes Rick Statman Robert Ralowski Robin TuckerDrob Rodrigo R. Dias Roman Kossak Saharon Shelah Sakaé Fuchino Salma Kuhlmann Samuel Coskey Šárka Stejskalová Scott Cramer Scott Schneider Sean Cox Sebastien Vasey Sergei Artemov Shehzad Ahmed Simon Thomas Slawomir Solecki Spencer Unger Stefan Geschke Stevo Todorcevic Su Gao Sy David Friedman Szymon Zeberski Teruyuki Yorioka Thilo Weinert Timothy Trujillo Todd Eisworth Todor Tsankov Tomek Bartoszynski Toshimichi Usuba Trevor Wilson Uri Abraham Vera Fischer Victor Torres Perez Victoria Gitman Vincenzo Dimonte Wieslaw Kubis Will Boney Wojciech Stadnicki Wolfgang Wohofsky Yair Hayut Yizheng Zhu Yurii Khomskii Zoltán VidnyánszkyCategories
Recent discussions
 12th Young Set Theory Workshop, Vienna, June 24 – 28, 2019  Set Theory Talks on 9th Young Set Theory Workshop, Copenhagen, June 1317, 2016
 12th Young Set Theory Workshop, Vienna, June 24 – 28, 2019  Set Theory Talks on 11th Young Set Theory Workshop, Lausanne, June 25–29, 2018
 First Girona inner model theory conference, Girona, July 1627 2018  Set Theory Talks on Münster conference on fine structure and inner model theory, July 2024, 2015
 11th Young Set Theory Workshop, Lausanne, June 25–29, 2018  Set Theory Talks on 6th Young Set Theory Workshop, June 1014, 2013
 GrothenDitQue: on Andrea Vaccaro: Embedding C*algebras into the Calkin algebra
 12th Young Set Theory Workshop, Vienna, June 24 – 28, 2019  Set Theory Talks on 9th Young Set Theory Workshop, Copenhagen, June 1317, 2016
Seminar organizer’s toolbox
Recent and upcoming talks by Jan Grebík
Jan Grebík: Borel chromatic numbers
Dear all,
The seminar meets on Wednesday July 18th at 11:00 in the Institute of
Mathematics CAS, Zitna 25, seminar room, 3rd floor, front building.
Program: Jan Grebík — Borel chromatic numbers
I will present an overview of known facts about Borel chromatic numbers
of Borel graphs. continue reading…
Jan Grebik: Applications of topological dynamics to graphons
The seminar meets on Wednesday February 28th at 11:00 in the Institute
of Mathematics CAS, Zitna 25, seminar room, 3rd floor, front building.
Program: Jan Grebik — Applications of topological dynamics to graphons
We show that the question about the existence of a Borel or continuous
lift for graphons has its counterpart in topological dynamics. continue reading…
Jan Grebik: Borel selector for Hypergraphons
The seminar meets on Wednesday January 3rd at 11:00 in the Institute of
Mathematics CAS, Zitna 25, seminar room, 3rd floor, front building.
Program: Jan Grebik — Borel selector for Hypergraphons
We recall all relevant definitions and show that there is a Borel way of
choosing a concrete representant of a hypergraphon. continue reading…
Jan Grebik: Borel selectors of Borel ideals (continued)
Dear all,
The seminar meets on Wednesday October 25th at 11:00 in the Institute of
Mathematics CAS, Zitna 25, seminar room, 3rd floor, front building.
Program: Jan Grebik — Borel selectors of Borel ideals (continued)
We present a result that there is an F_sigma ideal without Borel
selector and deduce that Galvin’s lemma does not have a “Borel proof.”
We also show that NashWilliams theorem has a “Borel proof” and
therefore Galvin’s lemma is intrinsically more complex than
NashWilliams theorem. continue reading…
Jan Grebik: Borel selectors of Borel ideals
Dear all,
The seminar meets on Wednesday October 18th at 11:00 in the Institute of
Mathematics CAS, Zitna 25, seminar room, 3rd floor, front building.
Program: Jan Grebik — Borel selectors of Borel ideals
We present a result that there is an F_sigma ideal without Borel
selector and deduce that Galvin’s lemma does not have a “Borel proof.”
We also show that NashWilliams theorem has a “Borel proof” and
therefore Galvin’s lemma is intrinsically more complex than
NashWilliams theorem. continue reading…
Winter School, Jan 28 – Feb 4, 2017
We are pleased to announce that the registration for the Winter School in Abstract Analysis, section Set Theory & Topology is now open. The conference will take place between Jan 28th and Feb 4th 2017 in Hejnice, Czech Republic. continue reading…
Jan Grebik: Oscillations of reals and related forcings
Wednesday, May 20, 2015, 11:00
Prague – IM AS CR, Zitna 25, seminar room, front building, third floor
Speaker: Jan Grebik
Title: Oscillations of reals and related forcings
Abstract:
We will review results about oscillations of real numbers and properties of posets defined using oscillations. continue reading…
Jan Grebik: The free sequence number f
Wednesday, March 18, 2015, 11:00
Prague – IM AS CR, Zitna 25, seminar room, front building, third floor
Speaker: Jan Grebik (Institute of Mathematics AS CR)
Title: The free sequence number f continue reading…
Jan Grebik: The Urysohn space and the Rado graph
Wednesday, January 21, 2015, 11:00
Prague – IM AS CR, Zitna 25, seminar room, front building, third floor
Speaker: Jan Grebik
Title: The Urysohn space and the Rado graph continue reading…
Jan Grebík, Jan Starý, Egbert Thümmel: TBA
Wednesday, April 30, 2014, 11:00
Prague – CTS
Speaker: Jan Grebík, Jan Starý, Egbert Thümmel
Title: TBA continue reading…