Summer 2022 Use DG-methods to build a matrix factorization
Andrew R. Kustin
J. Commut. Algebra 14(2): 229-266 (Summer 2022). DOI: 10.1216/jca.2022.14.229

Abstract

Let P be a commutative Noetherian ring, 𝔠 be an ideal of P which is generated by a regular sequence of length four, f be a regular element of P, and P¯ be the hypersurface ring P(f). Assume that 𝔠:f is a grade four Gorenstein ideal of P. We give a resolution N of P¯𝔠P¯ by free P¯-modules. The resolution N is built from a differential graded algebra resolution of P(𝔠:f) by free P-modules, together with one homotopy map. In particular, we give an explicit form for the matrix factorization which is the infinite tail of the resolution N.

Citation

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Andrew R. Kustin. "Use DG-methods to build a matrix factorization." J. Commut. Algebra 14 (2) 229 - 266, Summer 2022. https://doi.org/10.1216/jca.2022.14.229

Information

Received: 27 May 2019; Revised: 28 November 2019; Accepted: 15 May 2019; Published: Summer 2022
First available in Project Euclid: 14 July 2022

MathSciNet: MR4452659
zbMATH: 1502.13033
Digital Object Identifier: 10.1216/jca.2022.14.229

Subjects:
Primary: 13D02 , 16E45

Keywords: differential graded algebra , Gorenstein ideal , homotopy of complexes , matrix factorization , Poincaré duality algebra

Rights: Copyright © 2022 Rocky Mountain Mathematics Consortium

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Vol.14 • No. 2 • Summer 2022
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