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arXiv · 2608.26928

Rank Two Sheaves With Maximal Third Chern Class on the Fano Threefold of Index 2 and Degree 5

Danil A. Vassiliev
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Abstract

We obtain a complete classification of rank two semistable sheaves with maximal third Chern class on the Fano threefold $X_5$ of index 2 and degree 5. Also, we describe moduli spaces of such sheaves in the general case of big second Chern class. These moduli spaces are smooth rational varieties. The study uses the theory of tilt-stability and Bridgeland stability conditions.

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Danil A. Vassiliev. 2026-08-27. Rank Two Sheaves With Maximal Third Chern Class on the Fano Threefold of Index 2 and Degree 5. https://arxiv.org/abs/2608.26928

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