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arXiv 1406.0935math.AG
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复曲面边界基底

Toric Border Bases

Bernard Mourrain, Philippe Trebuchet

摘要:

我们将边界基的理论和算法推广到Laurent多项式方程系统,定义了“复曲面”根。而不是引入新的变量和新的关系饱和的变量逆,我们提出了一个更有效的方法,直接与变量和他们的逆。我们证明了环面边界基的对易关系和反演关系。我们明确地描述了第一syzygy模块与复曲面边界的基础上,这些关系。最后,给出了Laurent多项式的一种新的边界基算法,并证明了它在零维环面理想上是终止的。

英文摘要:

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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