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arxiv: 0911.2659 · v2 · pith:U2MIZLZBnew · submitted 2009-11-13 · 🧮 math.AC · math.AG

Non-commutative desingularization of determinantal varieties, I

classification 🧮 math.AC math.AG
keywords non-commutativecohen-macaulaydesingularizationdeterminantalmatrixmaximalvarietiescase
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We show that determinantal varieties defined by maximal minors of a generic matrix have a non-commutative desingularization, in that we construct a maximal Cohen-Macaulay module over such a variety whose endomorphism ring is Cohen-Macaulay and has finite global dimension. In the case of the determinant of a square matrix, this gives a non-commutative crepant resolution.

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