A Galois-theoretic approach to Kanev's correspondence

Details A Galois-theoretic approach to Kanev's correspondence A Galois-theoretic approach to Kanev's correspondence

2007-07-17

arxiv.org/abs/0707.2441v1

Mathematics

Algebraic Geometry

15 pages

Scientific paper

Let $G$ be a finite group, $\Lambda$ an absolutely irreducible $\Z[G]$-module and $w$ a weight of $\Lambda$. To any Galois covering with group $G$ we associate two correspondences, the Schur and the Kanev correspondence. We work out their relation and compute their invariants. Using this, we give some new examples of Prym-Tyurin varieties.

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