Algebraic unimodular counting
Algebraic unimodular counting
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代数单模计数
DOI:
10.1007/s10107-003-0383-9
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发表时间:
2001
影响因子:
2.7
通讯作者:
B. Sturmfels
中科院分区:
文献类型:
--
作者:
J. D. Loera;B. Sturmfels
Abstract. We study algebraic algorithms for expressing the number of non-negative integer solutions to a unimodular system of linear equations as a function of the right hand side. Our methods include Todd classes of toric varieties via Gröbner bases, and rational generating functions as in Barvinok's algorithm. We report polyhedral and computational results for two special cases: counting contingency tables and Kostant's partition function.