Rank jumps in Codimension 2 A-Hypergeometric Systems
Combinatorics
2007-05-23 v1 Algebraic Geometry
Abstract
The holonomic rank of the A-hypergeometric system H_A(\beta) is shown to depend on the parameter vector \beta when the underlying toric ideal I_A is a non Cohen Macaulay codimension 2 toric ideal. The set of exceptional parameters is usually infinite.
Keywords
Cite
@article{arxiv.math/0009148,
title = {Rank jumps in Codimension 2 A-Hypergeometric Systems},
author = {Laura Felicia Matusevich},
journal= {arXiv preprint arXiv:math/0009148},
year = {2007}
}
Comments
24 pages