CNRS Poncelet

Conference "Zeta Functions"

June 21 - 25, 2010

Moscow, Russia

RAS Poncelet

Organisers: Michel Balazard (CNRS, Laboratoire Poncelet), Michael Tsfasman (CNRS, Laboratoire Poncelet, Institute for Information Transmission Problems), Alexey Zykin (Laboratoire Poncelet, State University Higher School of Economics)

French Russian

The groups of points on abelian surfaces over finite fields

Sergey Rybakov (Moscow)

Friday 25 June, 16:30 - 17:30

Abstract

Let A be an abelian surface over a finite field k. The k-isogeny class of A is uniquely determined by a Weil polynomial f_A of degree 4. We give a classification of the groups of k-rational points on varieties from this class in terms of Newton polygons of f_A(1-t).

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