arxiv:1711.10231

Torelli problem for Calabi-Yau threefolds with GLSM description

Published on Nov 28, 2017

Authors:

Marco Rampazzo

Abstract

We construct a gauged linear sigma model with two non-birational K\"alher phases which we prove to be derived equivalent, L-equivalent, deformation equivalent and Hodge equivalent. This provides a new counterexample to the birational Torelli problem which admits a simple GLSM interpretation.

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