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Cycles Representing The Top Chern Class of the Hodge Bundle on the Moduli Space of Abelian Varieties

Torsten Ekedahl, Gerard van der Geer

math.AGarXiv:math/0402274

Abstract

We give a generalization to higher genera of the famous formula 12 λ=δ for genus 1. We also compute the classes of certain strata in the Satake compactification as elements of the push down of the tautological ring.

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