We exhibit examples of pairs (X, D) where X is a smooth projective variety and D is an anticanonical reduced simple normal crossing divisor such that the deformations of (X, D) are obstructed. These examples are constructed via toric geometry.
Felten, S., Petracci, A., Robins, S. (2023). Deformations of log Calabi–Yau pairs can be obstructed. MATHEMATICAL RESEARCH LETTERS, 30(5), 1357-1374 [10.4310/MRL.2023.V30.N5.A3].
Deformations of log Calabi–Yau pairs can be obstructed
Andrea Petracci
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2023
Abstract
We exhibit examples of pairs (X, D) where X is a smooth projective variety and D is an anticanonical reduced simple normal crossing divisor such that the deformations of (X, D) are obstructed. These examples are constructed via toric geometry.File in questo prodotto:
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