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arXiv 1303.2707math.STmath.GRstat.TH
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子群优化

Subgroup Majorization

Andrew R. Francis, Henry P. Wynn

摘要:

将优序化(也称为重排序)扩展到比对称(置换)群更一般的群,称为$G$ -优序化。在$G$是一个反射群的情况下有强有力的结果,本文建立在这个理论的方向上的子群,正规子群,商群和扩展。研究了基本锥和保序函数的意义。考虑的主要例子是超八面体群,它作用于$\mathbb R^n$中的矢量,置换和改变分量的符号。

英文摘要:

The extension of majorization (also called the rearrangement ordering), to more general groups than the symmetric (permutation) group, is referred to as $G$-majorization. There are strong results in the case that $G$ is a reflection group and this paper builds on this theory in the direction of subgroups, normal subgroups, quotient groups and extensions. The implications for fundamental cones and order-preserving functions are studied. The main example considered is the hyperoctahedral group, which, acting on a vector in $\mathbb R^n$, permutes and changes the signs of components.

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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