Vol. 9, No. 1, 2019

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Computing quasidegrees of A-graded modules

Roberto Barrera

Vol. 9 (2019), 29–34
DOI: 10.2140/jsag.2019.9.29
Abstract

We describe the main functions of the Macaulay2 package Quasidegrees.m2. The purpose of this package is to compute the quasidegree set of a finitely generated d-graded module presented as the cokernel of a monomial matrix. We provide examples with motivation coming from A-hypergeometric systems.

Keywords
quasidegree, hypergeometric system, local cohomology
Mathematical Subject Classification 2010
Primary: 13D45, 13P20, 33C70
Supplementary material

A package to compute quasidegrees and graded local cohomology

Milestones
Received: 27 June 2015
Revised: 13 October 2018
Accepted: 26 February 2019
Published: 18 May 2019
Authors
Roberto Barrera
Department of Mathematics
Texas State University
San Marcos, TX
United States