arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0709.2444math.RT
收藏

矩阵的酉表示和欧几里得表示

Unitary and Euclidean representations of a quiver

Vladimir V. Sergeichuk

摘要:

通过给每个顶点分配酉(欧几里得)向量空间并给每个箭头分配相应向量空间的线性映射,给出了一个向量的酉(欧几里得)表示。我们回忆了一个将酉表示的矩阵约化为标准形的算法,给出了标准形表示的某种描述,并将欧氏表示的分类问题约化为酉表示的分类问题.我们还描述了一组尺寸的所有不可分解的酉(欧几里德)表示的一个子系统,并建立在一个不可分解的酉表示的给定尺寸的参数的数量。

英文摘要:

A unitary (Euclidean) representation of a quiver is given by assigning to each vertex a unitary (Euclidean) vector space and to each arrow a linear mapping of the corresponding vector spaces. We recall an algorithm for reducing the matrices of a unitary representation to canonical form, give a certain description of the representations in canonical form, and reduce the problem of classifying Euclidean representations to the problem of classifying unitary representations. We also describe the set of dimensions of all indecomposable unitary (Euclidean) representations of a quiver and establish the number of parameters in an indecomposable unitary representation of a given dimension.

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。

↑