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Title: Descent theory for semiorthogonal decompositions

Journal Article · · Sbornik. Mathematics

We put forward a method for constructing semiorthogonal decompositions of the derived category of G-equivariant sheaves on a variety X under the assumption that the derived category of sheaves on X admits a semiorthogonal decomposition with components preserved by the action of the group G on X. This method is used to obtain semiorthogonal decompositions of equivariant derived categories for projective bundles and blow-ups with a smooth centre as well as for varieties with a full exceptional collection preserved by the group action. Our main technical tool is descent theory for derived categories. Bibliography: 12 titles.

OSTI ID:
21612762
Journal Information:
Sbornik. Mathematics, Vol. 203, Issue 5; Other Information: DOI: 10.1070/SM2012v203n05ABEH004238; Country of input: International Atomic Energy Agency (IAEA); ISSN 1064-5616
Country of Publication:
United States
Language:
English

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