Speaker: Hiroki Asano (Univ. Tokyo)

Title: Group actions with Rohlin property

Date/Time: January 30 (Wed.), 2013, 5:15-6:15

Room: 118 Math. Sci. Building

Abstract: Usually we need some kind of "outerness" to classify group actions. Rohlin property is also one which means high outerness and is characterized using central sequence algebras. Recently, Masuda and Tomatsu have succeeded in classifying Rohlin flows. And I have extended this results to the actions of Rⁿ. In this talk, I will introduce the Rohlin property and the key techniques to get the classification results. And also, explain how to solve the difficulty arising in the case of Rⁿ (n>=2) actions.