JEAN-PAUL BRASSELET (Marseilles) will give on May 11. and May 12. a series of lectures at the Banach Center in Warsaw. The title for the whole series is: SINGULARITIES AND HIRZEBRUCH CLASSES Schedule: Fri: 10:30-11:30, 14:30-15:30 Sat: 9:30-10:30, 11:30-12:30 Everybody is cordially invited. PP 4.05.2012