Ruprecht-Karls-Universität Heidelberg
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„Degrees of zero-cycles and Euler characteristics over Henselian fields“
Prof. Oliver Wittenberg, École normale supéieure, Paris

The index of a variety is the smallest positive degree of a zero-cycle lying on it. I will explain a relation between the index of a variety defined over a strictly Henselian local field, Euler characteristics of coherent sheaves, and the cobordism class of the variety. As an application, rationally connected varieties over the maximal unramified extension of a p-adic field have p-power index. (Joint work with H. Esnault and M. Levine.)

Freitag, den 25. Januar 2013 um 13:30 Uhr, in INF 288, HS2 Freitag, den 25. Januar 2013 at 13:30, in INF 288, HS2

Der Vortrag folgt der Einladung von The lecture takes place at invitation by Prof. Dr. J. Stix