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Commuting additive maps on tensor products of matrices
Linear and Multilinear Algebra ( IF 1.1 ) Pub Date : 2021-04-30 , DOI: 10.1080/03081087.2021.1920876 Wai Leong Chooi 1 , Jian Yong Wong 1
中文翻译:
矩阵张量积上的通勤加法映射
更新日期:2021-04-30
Linear and Multilinear Algebra ( IF 1.1 ) Pub Date : 2021-04-30 , DOI: 10.1080/03081087.2021.1920876 Wai Leong Chooi 1 , Jian Yong Wong 1
Affiliation
Let be positive integers such that for and let denote the algebra of matrices over a field for . Let be the tensor product of . We obtain a structural characterization of additive maps satisfying for all , where and is the standard matrix unit in for . In particular, we show that is an additive map commuting on if and only if there exist a scalar and an additive map such that for all . As an application, we classify additive maps satisfying for all . Here, denotes the set of rank matrices in and each is a fixed integer such that when and for .
中文翻译:
矩阵张量积上的通勤加法映射
让是正整数使得为了然后让表示代数域上的矩阵为了. 让是的张量积. 我们获得了附加映射的结构特征令人满意对所有人, 在哪里和是标准矩阵单位为了. 特别地,我们表明是通勤的附加地图当且仅当存在标量和一张附加地图这样对所有人. 作为一个应用,我们对加法图进行分类令人满意对所有人. 这里,表示秩的集合中的矩阵和每个是一个固定的整数,使得什么时候和为了.