Rank jumps in Codimension 2 A-Hypergeometric Systems

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The holonomic rank of the A-hypergeometric system H_A(β) is shown to depend on the parameter vector βwhen the underlying toric ideal I_A is a non Cohen Macaulay codimension 2 toric ideal. The set of exceptional parameters is usually infinite.
24 pages

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Combinatorics, Algebraic Geometry

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http://salesiana.dossiersoluciones.com/handle/123456789/59939

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0009148
 http://arxiv.org/abs/math/0009148

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arXiv