Multiplicative equations over commuting matrices

Multiplicative equations over commuting matrices
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交换矩阵上的乘法方程

DOI:
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发表时间:
1996
期刊:
ACM-SIAM Symposium on Discrete Algorithms
影响因子:
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通讯作者:
E. Luks
E. Luks
中科院分区:
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文献类型:
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作者:
L. Babai;R. Beals;Jin;G. Ivanyos;E. Luks

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我们考虑方程和推广的可解性,其中 A{sub i} 和 B 是给定代数数域 F 上的交换矩阵。在半群隶属问题中,变量 x{sub i} 被约束为非负整数。虽然这个问题对于变量 k 来说是 NP 完全的,但如果 k 是固定的,我们给出一个多项式时间算法。在群成员问题中,假设矩阵是可逆的,并且变量 x{sub i} 可以取负值。在这种情况下,我们给出变量 k 的多项式时间算法,并给出所有解集的显式描述(作为仿射格)。葛国强最近解决了 1 x 1 矩阵的特殊情况;我们非常依赖他的结果。
We consider the solvability of the equation and generalizations, where the A{sub i} and B are given commuting matrices over an algebraic number field F. In the semigroup membership problem, the variables x{sub i} are constrained to be nonnegative integers. While this problem is NP-complete for variable k, we give a polynomial time algorithm if k is fixed. In the group membership problem, the matrices are assumed to be invertible, and the variables x{sub i} may take on negative values. In this case we give a polynomial time algorithm for variable k and give an explicit description of the set of all solutions (as an affine lattice). The special case of 1 x 1 matrices was recently solved by Guoqiang Ge; we heavily rely on his results.