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math.FA2023
A Jordan-Schwinger Variant of the Spectral Theorem for Linear Operators
Wolfgang Bock, Vyacheslav Futorny, Mikhail Neklyudov
In this paper we show variant of the spectral theorem using an algebraic Jordan-Schwinger map. The advantage of this approach is that we don't have restriction of normality on the…
math.RT2023
Stretching maps for tensors
Vyacheslav Futorny, Mikhail Neklyudov, Kaiming Zhao
We consider an algebra of even-order square tensors and introduce a stretching map which allows us to represent tensors as matrices. The stretching map could be understood as a gen…