Yau-Zaslow formula on K3 surfaces for non-primitive classes

Abstract

We compute the genus zero family Gromov-Witten invariants for K3 surfaces using the topological recursion formula and the symplectic sum formula for a degeneration of elliptic K3 surfaces. In particular we verify the Yau-Zaslow formula for non-primitive classes of index two.

Published by Geometry and Topology at http://www.maths.warwick.ac.uk/gt/GTVol9/paper45.abs.html

References in corpus (1)

• Relations between the correlators of the topological sigma-model coupled to gravity

Cited by in corpus (5)

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• The Geometry of Flex Tangents to a Cubic Curve and its Parameterizations
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