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arXiv 2609.22825math.RA

四元数矩阵的$\phi$-共轭与广义Autonne-Takagi分解

The $ϕ$-conjugation of quaternionic matrices and generalized Autonne-Takagi factorization

Cailing Yao, Bingzhe Hou, Yue Xin

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中文总结 AI 辅助

本文针对模为1的四元数$\phi$,研究四元数矩阵的$\phi$-共轭相关性质,并将Autonne-Takagi分解推广至所有单位四元数,肯定回答了Horn与Zhang提出的问题。

中文摘要 AI 辅助

设$\phi$为模为$1$的四元数。本文研究了与四元数矩阵的$\phi$-共轭相关的一些课题,包括$\phi$-Hermitian矩阵、$\phi$-共轭正规矩阵、酉$\phi$-合同以及$\phi$-HSH分解(即$\phi$-Hermitian矩阵与斜$\phi$-Hermitian矩阵的分解)。特别地,我们将四元数$\phi$-Hermitian矩阵的Autonne-Takagi分解推广到所有单位四元数$\phi$。这肯定地回答了R. Horn和F. Zhang在论文“A generalization of the complex Autonne-Takagi factorization to quaternion matrices, Linear Multilinear A. 60: 1239--1244, 2012”中提出的一个问题。

英文摘要

Let $ϕ$ be a quaternion of modulus $1$. In this article, we study some topics related to $ϕ$-conjugation for quaternionic matrices, including $ϕ$-Hermitian matrices, $ϕ$-conjugate normal matrices, unitary $ϕ$-congruence and $ϕ$-HSH decomposition (decomposition of a $ϕ$-Hermitian matrix and a skew $ϕ$-Hermitian matrix). In particular, we generalize the Autonne-Takagi factorization of quaternion $ϕ$-Hermitian matrices for all unit quaternion $ϕ$. This gives an affirmative answer to a problem proposed by R. Horn and F. Zhang in the paper ``A generalization of the complex Autonne-Takagi factorization to quaternion matrices, Linear Multilinear A. 60: 1239--1244, 2012''.

发表机构

  • Changchun University of Chinese Medicine(长春中医药大学)
  • Jilin University(吉林大学)
  • Heilongjiang University(黑龙江大学)

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