Back to Search
Start Over
DG structure on the length 4 big from small construction.
- Source :
- Journal of Algebra & Its Applications; Jun2022, Vol. 21 Issue 6, p1-22, 22p
- Publication Year :
- 2022
-
Abstract
- The big from small construction was introduced by Kustin and Miller in [A. Kustin and M. Miller, Constructing big Gorenstein ideals from small ones, J. Algebra85 (1983) 303–322] and can be used to construct resolutions of tightly double linked Gorenstein ideals. In this paper, we expand on the DG-algebra techniques introduced in [A. Kustin, Use DG methods to build a matrix factorization, preprint (2019), arXiv:1905.11435] and construct a DG R -algebra structure on the length 4 big from small construction. The techniques employed involve the construction of a morphism from a Tate-like complex to an acyclic DG R -algebra exhibiting Poincaré duality. This induces homomorphisms which, after suitable modifications, satisfy a list of identities that end up perfectly encapsulating the required associativity and DG axioms of the desired product structure for the big from small construction. [ABSTRACT FROM AUTHOR]
- Subjects :
- MATRIX decomposition
GORENSTEIN rings
HOMOMORPHISMS
FACTORIZATION
CLUSTER algebras
Subjects
Details
- Language :
- English
- ISSN :
- 02194988
- Volume :
- 21
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Journal of Algebra & Its Applications
- Publication Type :
- Academic Journal
- Accession number :
- 157058775
- Full Text :
- https://doi.org/10.1142/S0219498822501079