In December 2011, I gave an introductory mini-course (3 lectures) on Kazhdan's property (T) at the conference "Analysis and Geometry of Discrete Groups and Hyperbolic Spaces" at RIMS(Research Institute for Mathematical Sciences, Kyoto University). This mini-course treats basics on property (T); and my recent result (on preprint [4] in the "List of Papers"). (20/Dec/2011)
In March, 2011, I finished my Ph.D course at the University of Tokyo, Graduate School pf Mathematical Sciences (Ph.D advisor: Taka Ozawa). From 1. April, 2011 to 30, Apr, 2012, I was a JSPS postdoctral fellow there (postdoc advisor: Masahiko Kanai). (1/Apr/2011; 1/May/2012)
I have finished my long stay at EPFL (Switzerland, Lausanne) for the period 15 February 2010-- 11 January, 2011, with the financial support by JSPS (Japan Society for the Promotion of Science). The purpose of this stay is an entrustment of the guidance of my study to Professor Nicolas Monod. (11/Jan/2011; 15/Feb/2010; 10/Jan/2010)