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arXiv:1011.1963 [math.AG]AbstractReferencesReviewsResources

The unirationality of the moduli spaces of 2-elementary K3 surfaces (with an Appendix by Ken-Ichi Yoshikawa)

Shouhei Ma

Published 2010-11-09, updated 2011-12-06Version 2

We prove that the moduli spaces of K3 surfaces with non-symplectic involutions are unirational. As a by-product we describe configuration spaces of 4<d<9 points in the projective plane as arithmetic quotients of type IV.

Comments: 32 pages, simplified exposition, to appear in Proc. London Math. Soc
Categories: math.AG
Subjects: 14J28, 14G35, 14H50
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