If $X$ is a toric Calabi-Yau 3-fold (so, it is in particular, non-compact), is it necessarily true that $h^{2,1}(X)$ vanishes? (Such a CY 3-fold is termed ``rigid''.)
2026-03-25 06:50:33.1774421433
Complex structure deformations of toric Calabi-Yau 3-folds
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