Products of Matrices

Products of Matrices
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矩阵的乘积

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发表时间:
1991
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通讯作者:
T. Laffey
T. Laffey
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作者:
T. Laffey

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本文考虑将GL(n,F)中的元素A表示为GL(n,F)的某些给定的可区分子集中的元素的乘积的问题,其中F是一个给定的域。特别地,我们考虑以下类型的分解: (一) A作为乘法交换子X-1 Y-1 XY(假设detA = ±1)。 (二) A作为对合的乘积(假设detA = ±1)。 (三) A是两个对合的乘积(假设A类似于A-1)。 (四) A是对称矩阵与对合的乘积。 (五) A是反对称矩阵的乘积。
We consider the problem of expressing an element A in GL(n, F), where F is a given field, as a product of elements in certain given distinguished subsets of GL(n,F). In particular, we consider the following types of decomposition: (i) A as a multiplicative commutator X -1 Y -1 XY (assuming detA = ±1). (ii) A as a product of involutions (assuming detA = ±1). (iii) A as a product of two involutions (assuming A is similar to A -1). (iv) A as a product of a symmetric matrix by an involution. (v) A as a product of skew-symmetric matrices.