Admissible subcategories of del Pezzo surfaces
Admissible subcategories of del Pezzo surfaces
复制标题
del Pezzo 曲面的允许子类别
DOI:
10.7916/d8-4wvy-fe69
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发表时间:
2020
影响因子:
1.7
通讯作者:
D. Pirozhkov
中科院分区:
文献类型:
--
作者:
D. Pirozhkov
We study admissible subcategories of derived categories of coherent sheaves on del Pezzo surfaces and rational elliptic surfaces. Using a relation between admissible subcategories and anticanonical divisors we prove the following results. First, we classify all admissible subcategories of the projective plane by showing that each is generated by a subcollection of a full exceptional collection. Second, we show that the derived categories of del Pezzo surfaces do not contain any phantom subcategories. This provides first examples of varieties of dimension larger than one that have some nontrivial admissible subcategories, but provably do not contain phantoms. We also prove that any admissible subcategory supported set-theoretically on a smooth (-1)-curve in a surface is generated by some twist of the structure sheaf of that curve.
影响因子:
2.6
作者:
Anno, Rina;Logvinenko, Timothy
通讯作者:
Logvinenko, Timothy