Torelli problem for Calabi-Yau threefolds with GLSM description
classification
🧮 math.AG
keywords
equivalentglsmproblemtorelliadmitsalherbirationalcalabi-yau
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We construct a gauged linear sigma model with two non-birational K\"alher phases which we prove to be derived equivalent, $\mathbb{L}$-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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