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arXiv · 1508.02974

Birationally rigid Pfaffian Fano 3-folds

Hamid Abban·Takuzo Okada
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Abstract

We classify birationally rigid orbifold Fano 3-folds of index one defined by $5 \times 5$ Pfaffians. We give a sharp criterion for birational rigidity of these families based on the type of singularities that the varieties admit. Various conjectures are born out of our study, highlighting a possible approach to the classification of terminal Fano 3-folds. The birationally rigid cases are the first known rigid examples of Fanos that are not (weighted) complete intersection.

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Hamid Abban, Takuzo Okada. 2015-08-12. Birationally rigid Pfaffian Fano 3-folds. https://arxiv.org/abs/1508.02974

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