$ \mathcal{H} $-tensors play a key role in identifying the positive definiteness of even-order real symmetric tensors. Some criteria have been given since it is difficult to judge whether a given tensor is an $ \mathcal{H} $-tensor, and their range of judgment has been limited. In this paper, some new criteria, from an increasing constant $ k $ to scale the elements of a given tensor can expand the range of judgment, are obtained. Moreover, as an application of those new criteria, some sufficient conditions for judging positive definiteness of even-order real symmetric tensors are proposed. In addition, some numerical examples are presented to illustrate those new results.
Citation: Wenbin Gong, Yaqiang Wang. Some new criteria for judging $ \mathcal{H} $-tensors and their applications[J]. AIMS Mathematics, 2023, 8(4): 7606-7617. doi: 10.3934/math.2023381
$ \mathcal{H} $-tensors play a key role in identifying the positive definiteness of even-order real symmetric tensors. Some criteria have been given since it is difficult to judge whether a given tensor is an $ \mathcal{H} $-tensor, and their range of judgment has been limited. In this paper, some new criteria, from an increasing constant $ k $ to scale the elements of a given tensor can expand the range of judgment, are obtained. Moreover, as an application of those new criteria, some sufficient conditions for judging positive definiteness of even-order real symmetric tensors are proposed. In addition, some numerical examples are presented to illustrate those new results.
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Wenbin Gong, Yaqiang Wang. Some new criteria for judging $ \mathcal{H} $-tensors and their applications[J]. AIMS Mathematics, 2023, 8(4): 7606-7617. doi: 10.3934/math.2023381
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