An upper bound for the real tensor rank and the real symmetric tensor rank in terms of the complex ranks

被引:4
作者
Ballico, E. [1 ]
机构
[1] Univ Trent, Dept Math, Povo, TN, Italy
关键词
symmetric tensor rank; tensor rank; Segre variety; Veronese variety; real rank; finite field;
D O I
10.1080/03081087.2013.839671
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Fix a real tensor T of format (m(1),..., m(s)). Here we prove that its real tensor rank is at most s times its complex tensor rank. A similar bound is true for symmetric tensors and for any perfect field (e.g. a finite field).
引用
收藏
页码:1546 / 1552
页数:7
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