Recent and upcoming talks by Thilo Weinert

Thilo Weinert – Cardinal Characteristics and Partition Properties

Talk held by Thilo Weinert (KGRC) at the KGRC seminar on 2018-03-15. Abstract: Many a partition relation has been proved assuming the Generalised Continuum Hypothesis. More precisely, many negative partition relations involving ordinals smaller than $\omega_2$ have been proved assuming the Continuum Hypothesis. continue reading…

Thilo Weinert: Avoiding Quadruples Using a Scale

BIU seminar in Set Theory On 08/06/2017, 10-12, Building 604, Room 103 Speaker: Thilo Weinert (BGU) Title: Avoiding Quadruples Using a Scale Abstract. In 1971, Hajnal showed that the continuum hypothesis implies omega_1^2 -|-> (omega_1^2, 3)^2 and in the same year, together with Erdős, that GCH implies that for every infinite cardinal kappa and every alpha < (kappa^+)^2 we have alpha -|-> (kappa^+ * kappa, 3)^2. continue reading…

Thilo Weinert: Partitioning pairs of sigma-scattered linear orders

BIU seminar in Set Theory On 20/04/2017, 10-12, Building 604, Room 103 Speaker:  Thilo Weinert Title: Partitioning pairs of sigma-scattered linear orders Abstract. We are going to continue the analysis of generalised scattered orders, proving the result described towards the end of Chris Lambie-Hanson’s talk. continue reading…

10th Young Set Theory Workshop, Edinburgh, July 10–14, 2017

The 10th installment of the Young Set Theory Workshop will take place July 10-14, 2017 in Edinburgh. Organisers Name Institution Brooke-Taylor, Andrew University of Leeds Dimopoulos, Stamatis University of Bristol Welch, Philip University of Bristol Invited tutorial speakers: Joan Bagaria, Universitat de Barcelona Matthew Foreman, University of California, Irvine Grigor Sargsyan, Rutgers University Asger Törnquist, University of Copenhagen Invited young speakers: Carolin Antos, Kurt Gödel Research Center Silvia Steila, University of Bern Thilo Weinert, Ben-Gurion University of the Negev Trevor Wilson, Miami University Invited local speakers: David Asperó, University of East Anglia Mirna Džamonja, University of East Anglia Links to previous meetings: Young Set Theory 2016 (Copenhagen) Young Set Theory 2015 (Jerusalem) Young Set Theory 2014 (Będlewo) Young Set Theory 2013 (Oropa) Young Set Theory 2012 (Marseille) Young Set Theory 2011 (Königswinter) Young Set Theory 2010 (Raach) Young Set Theory 2009 (Bellaterra) Young Set Theory 2008 (Bonn) 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…

​Thilo Weinert: Partition Relations for Linear Orders

Set Theory and Topology seminar (BGU) Time: Tuesday, ​December 1st, 12:15-13:40. Place: Seminar room -101, Math building 58. Speaker:​Thilo Weinert (BGU). Abstract: Partition Relations for Linear Orders Finite Ramsey Theory is nowadays quite ubiquitous in Combinatorics. continue reading…

2nd Arctic Set Theory Workshop, February 12-17, 2015

This international workshop on the latest developments in set theory will be held in the Kilpisjärvi Research Center of the University of Helsinki, during February 12-17, 2015. A group of leading mathematical logicians, together with younger researchers, from Finland, USA, Israel, UK, Germany, France, Canada, Italy, Greece, China, and Austria will meet in this unique location to make progress on the hardest questions of set theory today. continue reading…

Thilo Weinert: On Partitioning Linearly Ordered Quadruples in Canonical Non-Choice-Contexts

Forcing seminar (Tel Aviv University) June 24th 2014, 9-11 Speaker: Thilo Weinert Title: On Partitioning Linearly Ordered Quadruples in Canonical Non-Choice-Contexts Abstract: attached! continue reading…

Novi Sad Conference in Set Theory and General Topology, August 18-21, 2014

The SETTOP 2014 conference will take place August 18-21 in Novi Sad, Serbia. http://www.dmi.uns.ac.rs/settop/ Topics: Set Theory Model Theory General Topology Invited speakers: Dana Bartošová (Sao Paolo) Piotr Borodulin-Nadzieja (Wroclaw) Jan van Mill (Amsterdam) Justin Moore (Ithaca, NY) Stevo Todorčević (Paris – Toronto) Scientific Committee: Joan Bagaria (Barcelona) Mirna Džamonja (Norwich) Sy Friedman (Vienna) István Juhász (Budapest) Miloš Kurilić (Novi Sad) continue reading…

Thilo Weinert: Partition relations for linear orders in a non-choice context

Monday, November 18, 2013, 16.30 Seminar room 0.011, Mathematisches Institut, Universität Bonn Speaker: Thilo Weinert (Universität Bonn) Title: Partition relations for linear orders in a non-choice context Abstract: In “Partition Relations for eta_alpha-Sets”, Erdös, Milner and Rado proved, using the Axiom of Choice, three partition relations which amount to the following: -It is possible to partition the triples of any linear order into two classes such that every set of order-type w* + w(the integers) contains a triple in the first class and every quadruple contains a triple in the second class. continue reading…