John Voight
IMA
Title: Computing zeta
functions of varieties over finite fields
Abstract: The zeta
function Z(X,T) of a variety X over a finite field is a rational
function which encodes arithmetic, combinatorial, and geometric
properties
of X. For many applications, we are interested in explicitly
computing
Z(X,T) in order to recover this information about X. In this
talk, we
survey algorithmic methods for computing Z(X,T), and we introduce the
various cohomology theories from which these methods arise.
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