Abstract
Unitary flows \(T_t\) of dynamical origin such that, for any countable \(Q\subset (0,+\infty)\), the spectrum of the tensor product \(\bigotimes_{q\in Q} T_q \) is simple are constructed. All typical flows preserving a sigma-finite measure have this property.
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Translated from Funktsional'nyi Analiz i ego Prilozheniya, 2022, Vol. 56, pp. 113–117 https://doi.org/10.4213/faa4011.
Translated by O. V. Sipacheva
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Ryzhikov, V.V. Unitary Flows with Tensor Simple Spectrum. Funct Anal Its Appl 56, 327–330 (2022). https://doi.org/10.1134/S0016266322040116
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DOI: https://doi.org/10.1134/S0016266322040116