Tensor ranks and symmetric tensor ranks are the same for points with low symmetric tensor rank

被引:0
|
作者
Ballico, E. [1 ]
机构
[1] Univ Trent, Dept Math, I-38123 Povo, TN, Italy
关键词
Tensor rank; Symmetric tensor rank; Segre variety; Veronese variety;
D O I
10.1007/s00013-011-0274-x
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Fix integers n >= 1, d >= 2. Let V be an (n + 1)-dimensional vector space over a field with characteristic zero. Fix a symmetric tensor T is an element of S(d)(V) subset of V(circle times d). Here we prove that the tensor rank of T is equal to its symmetric tensor rank if the latter is at most (d + 1)/2.
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页码:531 / 534
页数:4
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