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Equivariant [formula omitted]-modules on 2 × 2 × 2 hypermatrices.
- Source :
-
Journal of Algebra . Feb2020, Vol. 544, p391-416. 26p. - Publication Year :
- 2020
-
Abstract
- Let V = C 2 ⊗ C 2 ⊗ C 2 be the space of 2 × 2 × 2 hypermatrices, endowed with the natural group action of GL = GL 2 (C) × GL 2 (C) × GL 2 (C). The category of GL-equivariant coherent left D -modules on V is equivalent to the category of representations of a quiver with relations. In this article, we give a construction of each simple object and study their GL-equivariant structure. Using this information, we go on to explicitly describe the corresponding quiver with relations. As an application, we compute all iterations of local cohomology with support in the orbit closures of V. [ABSTRACT FROM AUTHOR]
- Subjects :
- *COMMUTATIVE algebra
*ALGEBRAIC geometry
*ORBITS (Astronomy)
*CONSTRUCTION
Subjects
Details
- Language :
- English
- ISSN :
- 00218693
- Volume :
- 544
- Database :
- Academic Search Index
- Journal :
- Journal of Algebra
- Publication Type :
- Academic Journal
- Accession number :
- 139564335
- Full Text :
- https://doi.org/10.1016/j.jalgebra.2019.09.030