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Recent seminar announcements
 Ana Njegomir: A forcing characterization of lambdaineffable cardinals Bonn Logic Seminar
 Katrin Tent: Ample geometries of finite Morley rank Israeli Logic Talks
 Dana Bartosova: When can we act freely? Toronto Set Theory Seminar
 Jarosław Swaczyna: Haarsmall sets Wrocław University of Technology
 Victoria Gitman: A model of secondorder arithmetic with the choice scheme in which $\Pi^1_2$dependent choice fails Kurt Godel Research Center
 Nick Ramsey: Definability in the absolute Galois group of a PAC field Israeli Logic Talks
 Stefan Hoffelner: $\text{NS}_{\omega_1}$ saturated and a $\Sigma^{1}_{4}$definable wellorder on the reals Kurt Godel Research Center
 Andrey Morozov: Infinite time BlumShubSmale machines for computability in analysis Bonn Logic Seminar
 Grigory Mashevitzky: Action of endomorphism semigroups on definable sets Israeli Logic Talks
 Joanna Jureczko: Some remarks on Kuratowski partitions, new results Wrocław University of Technology
Upcoming conferences
 May 29: Borel Reducibility of Equivalence Relations, Lausanne, May 29, 2017
 June 20: Symposium of the Set Theoretic Pluralism network, Bristol, June 2025
 July 3: 6th European Set Theory Conference, Budapest, July 3–7, 2017
 July 10: 10th Young Set Theory Workshop, Edinburgh, July 10–14, 2017
 July 10: The 15th Asian Logic Conference, Korea, July 10–14, 2017
 July 14: Classification problems in ergodic theory, Irvine, July 14–25, 2017
 July 31: Applications of model theory to operator algebras, Houston, July 31 – August 4
 August 2: A conference on the occasion of Jensen’s 80th birthday, Münster, Aug 02–04, 2017
 August 14: Logic Colloquium 2017, August 1420, 2017
 August 20: Frontiers of Selection Principles, Warsaw, Aug 20 – Sep 1, 2017
 September 7: Set theoretic & Topological methods in Model Theory, Tezpur, September 7–12, 2017
 September 15: Simon Thomas: the first 60 years, Rutgers, September 1517, 2017

Talks by venue
 Barcelona Set Theory Seminar (RSS)
 Boise Set Theory Seminar (RSS)
 Bonn Logic Seminar (RSS)
 Bristol Logic Seminar (RSS)
 Carnegie Mellon Logic Seminar (RSS)
 Dartmouth Logic Seminar (RSS)
 Israeli Logic Talks (RSS)
 Kurt Godel Research Center (RSS)
 Michigan Logic Seminar (RSS)
 Morelia Topology and Set Theory Seminar (RSS)
 New York Logic Seminars (RSS)
 NUS logic seminar (RSS)
 Prague Forcing Seminar (RSS)
 Prague Set Theory Seminar (RSS)
 Rutgers Logic Seminar (RSS)
 Toronto Set Theory Seminar (RSS)
 UC Irvine Set Theory Seminar (RSS)
 Wroclaw Set Theory Seminar (RSS)
 Wrocław University of Technology (RSS)
Talks by speaker
Alan Dow Alekos Kechris Aleksander Cieślak Aleksandra Kwiatkowska Alessandro Vignati Alex Usvyatsov Alexei Kolesnikov Andre Nies Andreas Blass Andrés Caicedo Andrés Villaveces Andrew BrookeTaylor Andrew Marks Andy Zucker Antonio Avilés Anush Tserunyan Ari Brodsky Arnie Miller Arthur Apter 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 LambieHanson Christina Brech Clinton Conley Daisuke Ikegami Dana Bartošová Daniel Rodriguez Daniel Soukup David Aspero David Chodounsky David Fernández Bretón David J. Fernández Bretón David Marker David Milovich Diana Ojeda Diego Alejandro Mejia Dikran Dikranjan Dilip Raghavan Dima Sinapova Dimitrios Vlitas Egbert Thümmel Erez Shochat Erin Carmody Farmer Schlutzenberg François Dorais Frank Stephan Franklin Tall Gregory Cherlin Grigor Sargsyan Grzegorz Plebanek Gunter Fuchs Heike Mildenberger Hiroshi Sakai Hugh Woodin Ilijas Farah Ioannis Souldatos Isaac Goldbring István Juhász Itay Neeman James Cummings Jan Grebík Jan van Mill Jay Williams Jean Larson Jindra Zapletal 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 Katharina Dupont Konstantinos Tyros Lajos Soukup Laura Fontanella 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 Mati Rubin Matteo Viale Matthew D. Foreman Melvin Fitting Menachem Kojman Menachem Magidor Merlin Carl Michael Hrusak Michal Doucha Miguel Angel Mota Mike Pawliuk Mikhail Tkachenko Miodrag Sokic Mirna Džamonja Miyamoto Tadatoshi Monroe Eskew Moti Gitik Nadav Meir Nam Trang Natasha Dobrinen Norman Perlmutter Omer Ben Neria Omer Mermelstein Osvaldo Guzmán González Paul Larson Paul McKenney Peng Yinhe Peter Burton Peter Holy Peter Koellner Peter Koepke Peter Komjath Peter Krautzberger Petr Simon Philip Welch Philipp Lücke Philipp Schlicht Pierre Simon Piotr BorodulinNadzieja Piotr Koszmider Ralf Schindler Randall Holmes Rick Statman Robert Ralowski Robin TuckerDrob Rodrigo R. Dias Roman Kossak Saharon Shelah Sakaé Fuchino Samuel Coskey Sandra Uhlenbrock Scott Cramer Scott Schneider Sean Cox Sebastien Vasey Sergei Artemov Shehzad Ahmed Sheila Miller Simon Thomas Slawomir Solecki Spencer Breiner 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 Wieslaw Kubis Will Boney Wojciech Stadnicki Wolfgang Wohofsky Xianghui Shi Yair Hayut Yizheng Zhu Yurii KhomskiiCategories
Recent discussions
 10th Young Set Theory Workshop, Edinburgh, July 1014, 2017  Set Theory Talks on 6th Young Set Theory Workshop, June 1014, 2013
 10th Young Set Theory Workshop, Edinburgh, July 1014, 2017  Set Theory Talks on 9th Young Set Theory Workshop, Copenhagen, June 1317, 2016
 10th Young Set Theory Workshop, Edinburgh, July 1014, 2017  Set Theory Talks on 8th Young Set Theory Workshop, Jerusalem, October 2530, 2015
 1st Irvine Conference on Descriptive Inner Model Theory and HOD Mice, July 1829 2016  Set Theory Talks on Inner Model Theory events in California, June, 2014
 saf on Assaf Rinot: The strength of the generalized Souslin hypothesis
 10th Young Set Theory Workshop, Edinburgh, July 1014, 2017  Set Theory Talks on 6th Young Set Theory Workshop, June 1014, 2013
Seminar organizer’s toolbox
Recent and upcoming talks by Peng Yinhe
The 15th Asian Logic Conference, Korea, July 10–14, 2017
The Fifteenth Asian Logic Conference will be held in Daejeon, Korea during July 10 – 14, 2017. It will be the first Asian Logic Conference since its status changed from an ASL(the Association for Symbolic Logic)sponsored meeting to an official ASL meeting by ASL Council action in May 2016. continue reading…
Posted in ASL Meetings, Conferences
Tagged Diego Alejandro Mejia, Hiroshi Sakai, Paul Larson, Peng Yinhe, Yizheng Zhu, Yurii Khomskii
Yinhe Peng: Product of countable Frechet spaces
Place: Fields Institute (Room 210)
Date: February 3rd, 2017 (13:3015:00)
Speaker: Yinhe Peng, University of Toronto
Title: Product of countable Frechet spaces
Abstract: I will discuss the preservation of Frechet property in the
product, mainly in the class of countable spaces. continue reading…
Yinhe Peng: Inner and outer topology for basis problem
Place: Fields Institute (Room 210)
Date: October 7th, 2016 (13:3015:00)
Speaker: Yinhe Peng
Title: Inner and outer topology for basis problem
Abstract: We will introduce new classes of topological spaces in which the basis problem has a positive answer. continue reading…
Set Theory and its Applications in Topology, September 1116, 2016
The meeting took place in Oaxaca, Mexico. The slides may be found below.
08:45 – 09:00
Introduction and Welcome (Conference Room San Felipe)
09:00 – 10:00
Alan Dow: The even numbered problems (Conference Room San Felipe)
10:00 – 10:30
Rodrigo Jesus Hernandez Gutierrez: Spaces discretely generated at infinity (Conference Room San Felipe)
10:30 – 11:00
Coffee Break (Conference Room San Felipe)
11:00 – 11:30
Isván Juhász: Lindelöf spaces of countable pseudocharacter (Conference Room San Felipe)
11:30 – 12:00
Juris Steprans: PID and universal graphs (Conference Room San Felipe)
13:20 – 13:30
Group Photo (Hotel Hacienda Los Laureles)
13:30 – 15:00
Lunch (Restaurant Hotel Hacienda Los Laureles)
15:00 – 16:00
Itay Neeman: Forcing one instance of the MooreTodorcevic principle (Conference Room San Felipe)
16:00 – 16:30
Coffee Break (Conference Room San Felipe)
16:30 – 17:00
James Cummings: Dowker and superDowker filters (Conference Room San Felipe)
17:00 – 17:30
Assaf Rinot: The $\omega_2$Souslin problem (Conference Room San Felipe)
19:00 – 21:00
Dinner (Restaurant Hotel Hacienda Los Laureles)
Tuesday, September 13
07:30 – 09:00
Breakfast (Restaurant at your assigned hotel)
09:00 – 10:00
Christina Brech: Bases of Homogeneous families bellow the first Mahlo cardinal (Conference Room San Felipe)
10:30 – 11:00
Coffee Break (Conference Room San Felipe)
11:00 – 11:30
Piotr Koszmider: A noncommutative Mrówka’s $\Psi$space (Conference Room San Felipe)
11:30 – 12:00
Asger Tornquist: Invariant descriptive set theory and almost disjointness modulo an ideal (Conference Room San Felipe)
13:30 – 15:00
Lunch (Restaurant Hotel Hacienda Los Laureles)
15:00 – 16:00
Alexander Shibakov: Sequential groups: large and small (Conference Room San Felipe)
16:00 – 16:30
Coffee Break (Conference Room San Felipe)
16:30 – 17:00
Jindrich Zapletal: Strong measure zero sets in Polish groups (Conference Room San Felipe)
17:00 – 17:30
Marcin Sabok: On hyperfiniteness of boundary actions of hyperbolic groups (Conference Room San Felipe)
19:00 – 21:00
Dinner (Restaurant Hotel Hacienda Los Laureles)
Wednesday, September 14
07:30 – 09:00
Breakfast (Restaurant at your assigned hotel)
09:00 – 09:30
Joerg Brendle: Q (Conference Room San Felipe)
09:30 – 10:00
Dilip Raghavan: More on the density zero ideal (Conference Room San Felipe)
10:00 – 10:30
Osvaldo Guzmán: Combinatorial properties of MAD families (Conference Room San Felipe)
10:30 – 11:00
Coffee Break (Conference Room San Felipe)
11:00 – 11:30
Victor TorresPerez: Constructions with oppositions: Cardinal invariants and games (Conference Room San Felipe)
11:30 – 12:00
David Fernández Bretón: Strong failures of higher analogs of Hindman’s theorem (Conference Room San Felipe)
12:00 – 12:30
Natasha Dobrinen: Topological Ramsey spaces in some creature forcings (Conference Room San Felipe)
12:30 – 13:30
Lunch (Restaurant Hotel Hacienda Los Laureles)
13:30 – 17:30
Free Afternoon (Oaxaca)
19:00 – 21:00
Dinner (Restaurant Hotel Hacienda Los Laureles)
Thursday, September 15
07:30 – 09:00
Breakfast (Restaurant at your assigned hotel)
09:00 – 10:00
Slawomir Solecki: Monoid actions on lefttopological compact semigroups (Conference Room San Felipe)
10:30 – 11:00
Coffee Break (Conference Room San Felipe)
11:00 – 11:30
Aleksandra Kwiatkowska: The Ramsey degree of the prepseudoarc (Conference Room San Felipe)
11:30 – 12:00
Dana Bartosova: Ultrafilter combinatorics in topological dynamics (Conference Room San Felipe)
13:30 – 15:00
Lunch (Restaurant Hotel Hacienda Los Laureles)
15:00 – 16:00
Jan van Mill: Erdős spaces (Conference Room San Felipe)
16:00 – 16:30
Coffee Break (Conference Room San Felipe)
16:30 – 17:00
Anush Tserunyan: Topological dimension and Baire category (Conference Room San Felipe)
17:00 – 17:30
Yinhe Peng: Weak network and the basis problem (Conference Room San Felipe)
19:00 – 21:00
Dinner (Restaurant Hotel Hacienda Los Laureles)
Friday, September 16
07:30 – 09:00
Breakfast (Restaurant at your assigned hotel)
09:00 – 09:30
Jeffrey Bergfalk: Walks… (Conference Room San Felipe)
09:30 – 10:00
Iian Smythe: A local Ramsey theory for block sequences (Conference Room San Felipe)
10:00 – 10:30
Noé de Rancourt: Ramsey theory with and without the pigeonhole principle (Conference Room San Felipe)
10:30 – 11:00
Coffee Break (Conference Room San Felipe)
11:00 – 11:30
Claribet Piña: Topological partition relations for $\omega^2$ (Conference Room San Felipe)
11:30 – 12:00
Carlos Uzcategui: Bases and selectors for cofinal families of countable sets (Conference Room San Felipe)
12:00 – 12:30
Carlos Di Prisco: Graphs on the Cantor set (Conference Room San Felipe)
12:30 – 14:30
Lunch (Restaurant Hotel Hacienda Los Laureles)
continue reading…
Posted in Conferences
Tagged Alan Dow, Aleksandra Kwiatkowska, Alexander Shibakov, Anush Tserunyan, Asger Tornquist, Assaf Rinot, Carlos Di Prisco, Carlos Uzcátegui, Christina Brech, Claribet Piña, Dana Bartošová, David Fernández Bretón, Dilip Raghavan, István Juhász, Itay Neeman, James Cummings, Jan van Mill, Jeffrey Bergfalk, Jindra Zapletal, Jörg Brendle, Juris Steprans, Lian Smythe, Marcin Sabok, Natasha Dobrinen, Noé de Rancourt, Osvaldo Guzman, Peng Yinhe, Piotr Koszmider, Rodrigo Jesus Hernandez Gutierrez, Slawomir Solecki, Victor Torres Perez
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), MathiasPrikry forcing and generic ultrafilters
Sakaé Fuchino (Kobe University), Reflection theorems on nonexistence of orthonormal bases of preHilbert spaces
Daisuke Ikegami (Tokyo Denki University), Boolean valued second order logic
Diego A. continue reading…
Posted in RIMS
Tagged André Ottenbreit Maschio Rodrigues, Daisuke Ikegami, David Chodounsky, David Schrittesser, Diana Carolina Montoya, Diego Alejandro Mejia, Fabiana Castiblanco, Hiroshi Sakai, Jonathan Verner, Jörg Brendle, Miyamoto Tadatoshi, Natasha Dobrinen, Peng Yinhe, Sakaé Fuchino, Toshimichi Usuba
Yinhe Peng: Higher finite powers of L spaces and higher dimensions of combinatorial properties
Place: Fields Institute (Room 210)
Date: November 6th, 2015 (13:3015:00)
Speaker: Yinhe Peng
Title: Higher finite powers of L spaces and higher dimensions of combinatorial properties
Abstract: We will see examples of L spaces whose square (or even some higher power) is still an L space (in a joint paper with Liuzhen). continue reading…
Yinhe Peng: Combinatorial properties of the oscillation map, L groups and higher dimensions
Place: Fields Institute (Room 210)
Dates: October 2nd, 2015 (13:3015:00) and October 9th, 2015 (121:20)
Speaker: Yinhe Peng
Title: Combinatorial properties of the oscillation map, L groups and higher dimensions
Abstract: This is a joint work with Liuzhen. continue reading…
The 13th Asian Logic Conference, September 1620, 2013
The Thirteenth Asian Logic Conference will be held in Guangzhou from September 16 to 20, 2013. The Asian Logic Conference series is sponsored by the Association for Symbolic Logic and the meetings are major international events in mathematical logic. continue reading…
Posted in Conferences
Tagged Adam Day, Andre Nies, Dilip Raghavan, Jörg Brendle, Liuzhen Wu, Luz María García Ávila, Peng Yinhe, Su Gao, Toshimichi Usuba, Xianghui Shi
Toronto Set Theory Seminar
(Notice: slides from last week’s talk are available here:
http://settheorytalks.files.wordpress.com/2011/05/pestov6may2011.pdf)
Toronto Set Theory Seminar
Friday, May 13 from 1:30 to 3pm
Fields Institute, Room 210
Speaker: Peng Yinhe (Toronto and Singapore)
Title: An L space with nonLindelof square
Abstract:
There is an L space with nonLindelof square. continue reading…