On Tuesday the 5th of April 2011 at the seminar of the Department of Theory of Real Functions prof. dr hab. Ryszard Urbański delivered a talk entitled On a certain version of the Hahn-Banach theorem.
On Monday the 11th of April 2011, at the Geometry Seminar at the Faculty of Mathematics, Informatics and Mechanics at the University of Warsaw dr Jerzy Grzybowski will deliver a talk entitled Aleksandr Danilovich Aleksandrov - a man and a mathematician.