Deformations of Calabi-Yau manifolds in Fano toric varieties

Abstract

In this article, we investigate deformations of a Calabi-Yau manifold $Z$ in a toric variety $F$, possibly not smooth. In particular, we prove that the forgetful morphism from the Hilbert functor $H_Z^F$ of infinitesimal deformations of $Z$ in $F$ to the functor of infinitesimal deformations of $Z$ is smooth. This implies the smoothness of $H_Z^F$ at the corresponding point in the Hilbert scheme. Moreover, we give some examples and include some computations on the Hodge numbers of Calabi-Yau manifolds in Fano toric varieties.

v3: final version to appear in Rend. Circ. Mat. Palermo, II. Ser

References in corpus (2)

• Topological Invariants and Fibration Structure of Complete Intersection Calabi-Yau Four-Folds
• On Calabi-Yau generalized complete intersections from Hirzebruch varieties and novel K3-fibrations