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Conference Papers Year : 2014

Toric Border Basis

Bernard Mourrain
Philippe Trebuchet
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Abstract

We extend the theory and the algorithms of Border Bases to systems of Laurent polynomial equations, defining ''toric'' roots. Instead of introducing new variables and new relations to saturate by the variable inverses, we propose a more efficient approach which works directly with the variables and their inverse. We show that the commutation relations and the inversion relations characterize toric border bases. We explicitly describe the first syzygy module associated to a toric border basis in terms of these relations. Finally, a new border basis algorithm for Laurent polynomials is described and a proof of its termination is given for zero-dimensional toric ideals.
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Dates and versions

hal-00994683 , version 1 (03-06-2014)

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Bernard Mourrain, Philippe Trebuchet. Toric Border Basis. ISSAC'14 - International Symposium on Symbolic and Algebraic Computation, Jul 2014, Kobe, Japan. pp.343-350, ⟨10.1145/2608628.2608652⟩. ⟨hal-00994683⟩
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