矩阵上的拟恒等式与凯莱-哈密顿多项式
环与代数
2014-01-29 v3
摘要
我们考虑矩阵代数上的某些函数恒等式,其定义方式与迹恒等式类似,但“系数”是任意多项式,不一定是那些可由迹表示的多项式。主要问题是这样的恒等式是否是凯莱-哈密顿恒等式的推论。我们证明,在几个特殊情况下答案是肯定的,而且,对于每个这样的恒等式和每个具有零常数项的中心多项式,存在使得的肯定答案成立。然而,一般情况下答案是否定的。我们证明存在不遵循凯莱-哈密顿恒等式的反对称恒等式,并给出了这类恒等式中某个族的完整描述。
引用
@article{arxiv.1212.4597,
title = {Quasi-identities on matrices and the Cayley-Hamilton polynomial},
author = {Matej Brešar and Claudio Procesi and Špela Špenko},
journal= {arXiv preprint arXiv:1212.4597},
year = {2014}
}
备注
Version 2: 24 pages. This paper is a replacement of the paper "Quasi-identities and the Cayley-Hamilton quasi-polynomial" by the first and the third author. The changes are substantial. Version 3: 27 pages. The title has been changed slightly, the exposition improved, references added, and some typos removed