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The closure property of [Formula: see text]-tensors under the Hadamard product
Lixin Zhou1,2,3, Jianzhou Liu1, Li Zhu1
1School of Mathematics and Computational Science, Xiangtan University, Xiangtan, Hunan 411105 P.R. China.
Abstract:
In this paper, we investigate the closure property of [Formula: see text]-tensors under the Hadamard product. It is shown that the Hadamard products of Hadamard powers of strong [Formula: see text]-tensors are still strong [Formula: see text]-tensors. We then bound the minimal real eigenvalues of the comparison tensors of the Hadamard products involving strong [Formula: see text]-tensors. Finally, we show how to attain the bounds by characterizing these [Formula: see text]-tensors.
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