Seminars: R. I. Grigorchuk, Random walks on groups and the Atiyah conjecture about $L^2$ Betti numbers

SEMINARS


Meetings of the St. Petersburg Mathematical Society October 2, 2001, St. Petersburg

Joint meeting of the St. Petersburg Mathematical Society and the Section of the House of Scientists
Random walks on groups and the Atiyah conjecture about $L^2$ Betti numbers R. I. Grigorchuk Moscow