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arxiv: 1612.02910 · v1 · pith:G7HRRPCWnew · submitted 2016-12-09 · 🧮 math.RT

Symmetry classes of tensors and Semi-direct product of finite abelian groups

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keywords classesgroupssymmetrytensorsbasisfiniteproductabelian
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In the study of symmetry classes of tensors, finding examples of symmetry classes of tensors that possess an o*-basis is of considerable interest. There are only few classes of groups that have been provided a necessary and sufficient condition for having such a basis. There is no general criterion for any finite groups yet. In this note, we provide a necessary and sufficient condition for the existence of o*-basis of symmetry classes of tensors associated with semi-direct product of some finite abelian groups and, consequently, their wreath product.

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