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Recent seminar announcements
 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
 Chris LambieHanson: Constructions from square and diamond, with an application to superSouslin trees Bonn Logic Seminar
 Sabrina Ouazzani: A brief story of gaps in the infinite time Turing machines Bristol Logic Seminar
Upcoming conferences
 May 29: Borel Reducibility of Equivalence Relations, Lausanne, May 29, 2017
 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
A.R.D. Mathias Alan Dow Alekos Kechris Aleksander Cieślak Aleksandra Kwiatkowska Alessandro Vignati Alex Usvyatsov Alexei Kolesnikov Andreas Blass Andrés Caicedo Andrés Villaveces Andrew BrookeTaylor Andrew Marks Andrew Toms 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 Boris Zilber Borisa Kuzeljevic Brent Cody Burak Kaya Carlos Di Prisco Carlos MartinezRanero Chris LambieHanson Christina Brech Clinton Conley Daisuke Ikegami Damian Sobota 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 Janusz Pawlikowski 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 Kaethe Minden Katharina Dupont 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 Norman Perlmutter Omer Ben Neria Osvaldo Guzmán González Paul Larson Paul McKenney Peng Yinhe 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 Scott Cramer Scott Schneider Sean Cox Sebastien Vasey Sergei Artemov Shehzad Ahmed Simon Thomas Slawomir Solecki Spencer Breiner Spencer Unger Stefan Geschke Stevo Todorcevic Su Gao Sy David Friedman Szymon Zeberski Taras Banakh Teruyuki Yorioka Thilo Weinert Thomas Johnstone Timothy Trujillo Todd Eisworth Todor Tsankov Tomek Bartoszynski Toshimichi Usuba Trevor Wilson Tristan Bice Uri Abraham Vera Fischer Victor Torres Perez Victoria Gitman Wieslaw Kubis Will Boney Wojciech Stadnicki Wolfgang Wohofsky 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
Ari Brodsky received a Ph.D. from University of Toronto in 2014, under the supervision of Stevo Todorcevic.
He is now a postdoctoral fellow at BarIlan University, under the supervision of Assaf Rinot.
Recent and upcoming talks by Ari Brodsky
Ari Brodsky: Distributive Aronszajn trees
Place: Fields Institute (Room 210)
Date: April 21, 2017 (13:3015:00)
Speaker: Ari Brodsky, BarIlan University
Title: Distributive Aronszajn trees
Abstract: We address a conjecture asserting that, assuming GCH, for every singular cardinal $\lambda$, if there exists a $\lambda^+$Aronszajn tree, then there exists one which is moreover $\lambda$distributive.A major component of this work is the study of postprocessing functions and their effect on square sequences. continue reading…
Ari Brodsky: More notions of forcing add a Souslin tree
Place: Fields Institute (Room 210)
Date: October 28, 2016 (13:3015:00)
Speaker: Ari Brodsky, BarIlan University
Title: More notions of forcing add a Souslin tree
Abstract: Shelah proved that Cohen forcing adds an $\omega_1$Souslin tree. continue reading…
Ari Brodsky: Custommade Souslin trees
BGU Seminar in Logic, Set Theory and Topology.
Time: Tuesday, May 24th, 12:3013:45.
Place: Seminar room 101, Math building 58.
Speaker: Ari Brodsky (BIU).
Title: Custommade Souslin trees
Abstract:
We propose a parameterized proxy principle from which $\kappa$Souslin trees with various additional features can be constructed, regardless of the identity of $\kappa$. continue reading…
Ari Brodsky: Custommade Souslin trees
Place: Fields Institute (Room 210)
Date: May 2nd , 2016 (13:3015:00)
Speaker: Ari Brodsky
Title: Custommade Souslin trees
Abstract: We propose a parametrized proxy principle from which $\kappa$Souslin trees with various additional features can be constructed, regardless of the identity of $\kappa$. continue reading…
BEST 2015 slides
The 22nd BEST conference was held June 14–17 in San Francisco, CA.
Mirna Džamonja – FAC and WQO orders and their ordinal invariants
Luke Serafin – Cardinal invariants of generalized continua
Ari Brodsky – A microscopic approach to higher Suslin tree constructions
Ola Kwiatkowska – Dynamics of the homeomorphism group of the Lelek fan
Paul Ellis – The conjugacy problem for countable homogeneous structures
Trevor Wilson – Covering properties of derived models
Miha Habic – Joint Laver diamonds
Bill Chen – Scales in Prikry extensions
Rodrigo Dias – Productively countably tight spaces and selective games
Steven Clontz – Limited information strategies in infinite games
Liljana Babinkostova – The selective strong screen ability game
Spencer Unger – Baire measurable paradoxical decompositions via matchings
Diana OjedaAristizábal – Finite forms of Gowers’ FINk theorem continue reading…
8th Young Set Theory Workshop, Jerusalem, October 2530, 2015
The 8th Young Set Theory Workshop will take place October 2530 2015, at the Israel Institute of Advanced Studies in Jerusalem. (see poster, booklet, and Group picture)
The aims of the “Young Set Theory Workshops” are to bring together young researchers in the domain of set theory and give them the opportunity to learn from each other and from experts in a friendly environment. continue reading…
22nd Boise Extravaganza in Set Theory, June 1517, 2015
Boise Extravaganza in Set Theory
June 15 – 17, 2015
San Francisco State University
math.boisestate.edu/~best/
At present plenary speakers for BEST 2015 include:
Dr. Rodrigo Dias, University of Sao Paulo, Brazil
Dr. continue reading…
Ari Brodsky: A Theory of Stationary Trees and the Balanced BaumgartnerHajnalTodorcevic Theorem for Trees
Infinite Combinatorics Seminar (BIU)
23/November/2014, 10:1512:00,
Room 201, Building 216, BarIlan University
Speaker: Ari Meir Brodsky (BIU)
Title: A Theory of Stationary Trees and the Balanced BaumgartnerHajnalTodorcevic Theorem for Trees
Abstract: Building on early work by Stevo Todorcevic, we develop a theory of stationary subtrees of trees of successorcardinal height. continue reading…
Ari Meir Brodsky: A theory of nonspecial trees, and a generalization of the Balanced BaumgartnerHajnalTodorcevic Theorem
12/July/2013, 13:3015:00
Fields Institute, Room 210
Speaker: Ari Meir Brodsky
Title: A theory of nonspecial trees, and a generalization of the Balanced BaumgartnerHajnalTodorcevic Theorem
Abstract:
Building on early work by Stevo Todorcevic, we describe a theory of nonspecial trees of successorcardinal height. continue reading…