Date
Mon, 19 May 2014
Time
16:00 - 17:00
Location
C5
Speaker
Javier Fresán
Organisation
Max Planck Institute Bonn

At the end of the 70s, Gross and Deligne conjectured that periods of geometric Hodge structures with multiplication by an abelian number field are always products of values of the gamma function at rational numbers, with exponents determined by the Hodge decomposition. I will explain a proof of an alternating variant of this conjecture for the cohomology groups of smooth, projective varieties over the algebraic numbers acted upon by a finite order automorphism.

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