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arXiv 1005.0474math.RA
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四元数矩阵左特征值的特征函数与Hamilton-Cayley定理

Characteristic functions and Hamilton-Cayley theorem for left eigenvalues of quaternionic matrices

E. Macías-Virgós, M. J. Pereira-Sáez

摘要:

本文引入四元数矩阵的特征函数的概念,其根是四元数矩阵的左特征值。证明了对所有的$2\times 2$矩阵和在对角线外有零元素的$3\times 3$矩阵,存在一个特征函数,它是一个多项式.对于其它$3\times 3$矩阵,特征函数是具有一个不连续点的有理函数。我们证明了Hamilton-Cayley定理在所有情况下都成立。

英文摘要:

We introduce the notion of characteristic function of a quaternionic matrix, whose roots are the left eigenvalues. We prove that for all $2\times 2$ matrices and for $3\times 3$ matrices having some zero entry outside the diagonal there is a characteristic function which is a polynomial. For the other $3\times 3$ matrices the characteristic function is a rational function with one point of discontinuity. We prove that Hamilton-Cayley theorem holds in all cases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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