Recent and upcoming talks by Otmar Spinas

Otmar Spinas: “Das Problem mit Silver Amoeba”

Monday, June 23, 2014, 16.30 Seminar room 0.011, Mathematical Institute, University of Bonn Speaker: Otmar Spinas (Kiel) Title: “Das Problem mit Silver Amoeba” Abstract: Ich werde die offene Frage eroertern, ob ein Amoeba für Silver-Forcing existiert, das keine Cohen reelle Zahlen adjungiert. continue reading…

MFO workshop in Set Theory, Oberwolfach, January 2014

These are title of the talks from the 2014 Oberwolfach meeting. Below, are some of the slides. Brendle – Rothberger gaps in analytic quotients Conley – Measurable analogs of Brooks’s theorem for graph colorings Cramer – Inverse limit reflection and generalized descriptive set theory Cummings – Combinatorics at successors of singulars Dobrinen – Progress in topological Ramsey space theory Dzamonja – Combinatorial versions of SCH Fischer – Template iterations and maximal cofinitary groups Gitik – Short extenders forcings and collapses Golshani – The effects of adding a real to models of set theory Koepke – An Easton-like Theorem for ZF Set Theory Krueger – Forcing square with finite conditions Lupini – Borel complexity and automorphisms of $C^*$-algebras Melleray – Full groups of minimal homeomorphisms and descriptive set theory Mildenberger – Specialising Aronszajn trees in a gentle way Moore – Completely proper forcing and the Continuum Hypothesis Motto Ros – On the descriptive set-theoretical complexity of the embeddability relation on uncountable models Neeman – Higher analogues of PFA Rinot – Complicated Colorings Sabok – Automatic continuity for isometry groups Sargsyan – Core Model Induction and Hod Mice Schindler – Does $\Pi^1_1$  determinacy yield 0#? continue reading…