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Recent seminar announcements
 Assaf Shani: Borel reducibility and symmetric models Carnegie Mellon Logic Seminar
 Liu Yong: There is no strong minimal pair NUS logic seminar
 Asaf Karagila: Staring into a Cohen real: the Bristol model Prague Set Theory Seminar
 David Schrittesser: The Ramsey property, MAD families, and their multidimensional relatives Toronto Set Theory Seminar
 Jan Hubička: Combinatorial proofs of the extension property for partial automorphisms Prague Set Theory Seminar
 Matthias Baaz: On the benefit of unsound rules: Henkin quantifiers and beyond NUS logic seminar
 Daniel T. Soukup: Uniformization properties and graph edge colourings Israeli Logic Talks
 Clinton Conley: Ode on a oneended subforest Carnegie Mellon Logic Seminar
 Alejandro Poveda: An invitation to the world of Prikrytype forcing Barcelona Set Theory Seminar
 Damjan Kalajdzievski: How to show Con(ZFC + omega_1=u<a) from Con(ZFC) Toronto Set Theory Seminar
Upcoming conferences
 May 13: 50 Years of Set Theory in Toronto, Fields institute, May 1317, 2019
 May 30: Logic Fest in the Windy City, Chicago, May 30 – June 2, 2019
 June 24: 12th Young Set Theory Workshop, Vienna, June 24 – 28, 2019
 July 1: 7th European Set Theory Conference, Vienna, July 15, 2019
 July 8: Berkeley conference on inner model theory, July 08–19, 2019
 August 11: Logic Colloquium 2019, Prague, August 11 – 16, 2019
 September 9: Settheoretic methods in topology and real functions theory, Kosice, September 913, 2019

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 Chris Eagle Chris LambieHanson Christian Rosendal Christina Brech Clinton Conley Daisuke Ikegami Damian Sobota Dana Bartošová Daniel Rodriguez 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 Dimitrios Vlitas 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 Isaac Goldbring 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 Konstantinos Tyros Lajos Soukup Laura Fontanella 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 Nadav Meir Nam Trang Natasha Dobrinen 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 Radek Honzik Ralf Schindler Randall Holmes Rick Statman Robert Ralowski Robin TuckerDrob Rodrigo R. Dias Roman Kossak Russell Miller Saharon Shelah Sakaé Fuchino Samuel Coskey Sandra Müller 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 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
David Fernández Bretón earned a Ph.D. from the Department of Mathematics and Statistics of York University in Toronto, under the supervision of Juris Steprāns.
My main interests are Logic and Set Theory, especially Forcing and Large Cardinals (although my knowledge of the latter is not as deep as I would like), and their applications to Algebra and Analysis. I am currently working on the algebra and topology of the StoneČech compactification of groups, notably Abelian groups, and with idempotents in said compactification. I have also been interested in the Cardinal Invariants of the Continuum for a while.
In a much more informal fashion (pretty much as a hobby), I also like to look at alternative axiomatizations of set theory, such as NFU, and some (very basic) category theory. I am also interested in the Philosophy of Mathematics and in Ludwig Wittgenstein’s life and work.
Recent and upcoming talks by David J. Fernández Bretón
David J. Fernández Bretón: Higher degree versions of the Central Sets Theorem, II
Thursday, October 26, 2017, from 4 to 5:30pm
East Hall, room 3096
Speaker: David J. Fernández Bretón (University of Michigan)
Title: Higher degree versions of the Central Sets Theorem, II
Abstract:
The Central Sets Theorem is a Ramseytheoretic result due to Furstenberg, from 1981, and multiple generalizations of it (in a variety of different directions) have been proved afterwards (to the best of my knowledge, the currently most general statement is due to De, Hindman and Strauss in 2008, but there are also many relevant results due to Bergelson). continue reading…
David J. Fernández Bretón: Higher degree versions of the Central Sets Theorem
Thursday, October 12, 2017, from 4 to 5:30pm
East Hall, room 3096
Speaker: David J. Fernández Bretón (University of Michigan)
Title: Higher degree versions of the Central Sets Theorem
Abstract:
The Central Sets Theorem is a Ramseytheoretic result due to Furstenberg, from 1981, and multiple generalizations of it (in a variety of different directions) have been proved afterwards (to the best of my knowledge, the currently most general statement is due to De, Hindman and Strauss in 2008, but there are also many relevant results due to Bergelson). continue reading…
David J. Fernández Bretón: mathfrak p=mathfrak t, III
Tuesday, April 18, 2017, from 4 to 5:30pm
East Hall, room 3096
Speaker: David J. Fernández Bretón (University of Michigan)
Title: mathfrak p=mathfrak t, III
Abstract:
This is the third and last talk in the series (reasonably selfcontained for those who missed any number of previous parts). continue reading…
David J. Fernández Bretón: mathfrak p=mathfrak t, II
Thursday, April 6, 2017, from 4 to 5:30pm
East Hall, room 3088
Speaker: David J. Fernández Bretón (University of Michigan)
Title: mathfrak p=mathfrak t, II
Abstract:
This is the second in a series of (hopefully at most) three talks, and it will be reasonably selfcontained for those who missed the first part. continue reading…
David J. Fernández Bretón: mathfrak p=mathfrak t
Thursday, March 30, 2017, from 4 to 5:30pm
East Hall, room 3088
Speaker: David J. Fernández Bretón (University of Michigan)
Title: mathfrak p=mathfrak t
Abstract:
In a series of (hopefully at most) two talks, I will present the proof, due to Maryanthe Malliaris and Saharon Shelah in 2012, that the cardinal invariants p and t are equal, which constitutes an extremely important result in the theory of Cardinal Characteristics of the Continuum. continue reading…
David Fernández Bretón: Strong failures of higher analogs of Hindman’s theorem, IV
Thursday, November 3, 2016, from 4 to 5:30pm
East Hall, room 3096
Speaker: David Fernández Bretón (University of Michigan)
Title: Strong failures of higher analogs of Hindman’s theorem, IV
Abstract:
This is talk 4 out of 4. continue reading…
David J. Fernández Bretón: Strong failures of higher analogs of Hindman’s theorem, III
Thursday, October 27, 2016, from 4 to 5:30pm
East Hall, room 3096
Speaker: David J. Fernández Bretón (University of Michigan)
Title: Strong failures of higher analogs of Hindman’s theorem, III
Abstract:
Assuming the Continuum Hypothesis, Hindman, Leader and Strauss recently exhibited a colouring of the real line with two colours such that, for every uncountable set of reals, the collection of pairwise sums of these reals is panchromatic. continue reading…
David J. Fernández Bretón: Strong failures of higher analogs of Hindman’s theorem, II
Thursday, October 20, 2016, from 4 to 5:30pm
East Hall, room 3096
Speaker: David J. Fernández Bretón (University of Michigan)
Title: Strong failures of higher analogs of Hindman’s theorem, II
Abstract:
(One of the versions of) Hindman’s theorem states that, whenever we partition an infinite abelian group G in two cells, there exists an infinite subset X of G such that the set FS(X) consisting of all sums of finitely many distinct elements of X is entirely contained within one of the cells of the partition. continue reading…
David J. Fernández Bretón: Strong failures of higher analogs of Hindman’s theorem, I
Thursday, October 13, 2016, from 4 to 5:30pm
East Hall, room 3096
Speaker: David J. Fernández Bretón (University of Michigan)
Title: Strong failures of higher analogs of Hindman’s theorem, I
Abstract:
(One of the versions of) Hindman’s theorem states that, whenever we partition an infinite abelian group G in two cells, there exists an infinite subset X of G such that the set FS(X) consisting of all sums of finitely many distinct elements of X is entirely contained within one of the cells of the partition. continue reading…