Some results on inhomogeneous discriminants

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We study generalized Horn-Kapranov rational parametrizations of inhomogeneous sparse discriminants from both a theoretical and an algorithmic perspective. We show that all these parametrizations are birational and prove some results on the corresponding implicit equations. We also propose a combinatorial algorithm to compute the degree of inhomogeneous discriminantal surfaces associated to uniform matrices.
20 pages, 2 figures

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Algebraic Geometry, Commutative Algebra

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http://salesiana.dossiersoluciones.com/handle/123456789/117774

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0610031
 http://arxiv.org/abs/math/0610031

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arXiv