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On the diagonalizability of a matrix by a symplectic equivalence, similarity or congruence transformation

机译:关于辛等价,相似或同余变换的矩阵的对角化性

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A symplectic matrix S is an element of C-2nx2n satisfies S = J(-1) S-T J for J = [0-I-n I(n)0] is an element of R-2nx2n. We will consider symplectic equivalence, similarity and congruence transformations and answer the question under which conditions a 2n x 2n matrix is diagonalizable under one of these transformations. In particular, we will give symplectic analogues of the singular value decomposition and the Takagi factorization. (C) 2016 Elsevier Inc. All rights reserved.
机译:辛矩阵S是C-2nx2n的元素,满足S = J(-1)S-T J,其中J = [0-I-n I(n)0]是R-2nx2n的元素。我们将考虑辛等价,相似和同余变换,并回答在其中一种变换下,2n x 2n矩阵可对角化的问题。特别地,我们将给出奇异值分解和Takagi因式分解的辛类似物。 (C)2016 Elsevier Inc.保留所有权利。

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