Recent and upcoming talks by Diana Ojeda

Diana Ojeda: Topological partition relations for countable ordinals

Place: Fields Institute (Room 210) Date: January 22 , 2016 (13:30-15:00) Speaker: Diana Ojeda Title: Topological partition relations for countable ordinals Abstract: The subject of topological partition relations provides answers to questions of the following form: Given a topological space X and a subspace Y, is it possible to reduce any given coloring of the pairs of elements of X to a simpler coloring, by passing to a subspace homeomorphic to Y? 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 Ojeda-Aristizábal – Finite forms of Gowers’ FINk theorem continue reading…

8th Young Set Theory Workshop, Jerusalem, October 25-30, 2015

The 8th Young Set Theory Workshop will take place October 25-30 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…

Diana Ojeda: Finite forms of Gowers’ Theorem on the oscillation stability of $c_0$

5 September 2014, 13:30–15:00 Fields institute, Room 210 Speaker: Diana Ojeda Title:  Finite forms of Gowers’ Theorem on the oscillation stability of $c_0$ Abstract: We give a constructive proof of the finite version of Gowers’ $FIN_k$ Theorem and analyze the corresponding upper bounds. continue reading…

Ramsey theory conference, May 24 – 28, 2014

Ramsey theory conference, University of Denver. May 24–28, 2014 The aim of this conference is to bring together students and researchers from around the world in the field of Ramsey Theory. continue reading…

This Week in Logic at CUNY

Set theory seminar Friday, September 27, 2013 10:00 am 6417 Speaker: Gunter Fuchs The City University of New York Title: A self-specializing Souslin tree Link: http://nylogic.org/talks/a-self-specializing-souslin-tree  I will present a construction, assuming Jensen’s combinatorial principle diamond, of a Souslin tree T which, after forcing with T, will be Ahronszajn off the generic branch. continue reading…