Recent and upcoming talks by Chris Lambie-Hanson

Chris Lambie-Hanson: Jónsson cardinals, partition relations, and stationary reflection, Part III

Speaker:  Chris Lambie-Hanson Title: Jónsson cardinals, partition relations, and stationary reflection, Part III Abstract: I will present a proof that, relative to large cardinal assumptions, it is consistent that there is a singular cardinal mu such that every stationary subset of mu^+ reflects but that there is a stationary subset of mu^+ that does not reflect at ordinals of arbitrarily high cofinality. continue reading…

Chris Lambie-Hanson: Jónsson cardinals, partition relations, and stationary reflection, Part II

CMU math logic seminar Tue Feb 25 Speaker:  Chris Lambie-Hanson Title: Jónsson cardinals, partition relations, and stationary reflection, Part II Abstract: I will present a proof that, relative to large cardinal assumptions, it is consistent that there is a singular cardinal mu such that every stationary subset of mu^+ reflects but that there is a stationary subset of mu^+ that does not reflect at ordinals of arbitrarily high cofinality. continue reading…

Chris Lambie-Hanson: Jónsson cardinals, partition relations, and stationary reflection

CMU math logic seminar Tuesday 18 Feb Speaker:   Chris Lambie-Hanson (CMU) Title: Jónsson cardinals, partition relations, and stationary reflection Abstract: I will give an introduction to Jónsson cardinals and related square bracket partition relations. continue reading…

New York Graduate Student Logic Conference, April 18-19, 2013

We are pleased to announce the fourth New York Graduate Student Logic Conference will be held Thursday and Friday, April 18-19, 2013, at the CUNY Graduate Center located in midtown Manhattan. continue reading…

Chris Lambie-Hanson: Covering Matrices and Squares, Part II

Mathematical logic seminar – Oct 30 2012 Time:     12:00 – 13:20 Room:     Wean Hall 7201 Speaker:         Chris Lambie-Hanson Department of Mathematical Sciences Carnegie Mellon University Title:     Covering Matrices and Squares, Part II Abstract: Covering matrices were introduced by Matteo Viale in his proof that the Singular Cardinals Hypothesis follows from the Proper Forcing Axiom. continue reading…

Chris Lambie-Hanson: Covering Matrices and Squares, Part I

Mathematical logic seminar – Oct 16 2012 Time:     12:00 – 13:20 Room:     Wean Hall 7201 Speaker:         Chris Lambie-Hanson Department of Mathematical Sciences Carnegie Mellon University Title:     Covering Matrices and Squares, Part I Abstract: Covering matrices were introduced by Matteo Viale in his proof that the Singular Cardinals Hypothesis follows from the Proper Forcing Axiom. continue reading…