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Nonstandard Representations of Locally Compact Groups
V. A. Lyubetskii, S. A. Pirogov Institute for Information Transmission Problems, Russian Academy of Sciences
Abstract:
In the note, it is proved that, under natural conditions, any infinite-dimensional unitary representation $T$ of a direct product of groups $G=K\times N$, where $K$ is a compact group and $N$ is a locally compact Abelian group, is imaged by a representation of the nonstandard analog $\widetilde G$ of the group $G$ in the group of nonstandard matrices of a fixed nonstandard size.
Keywords:
unitary representation, nonstandard matrix, imaging of groups, Boolean algebra, Stone space, Casimir operator.
Received: 29.11.2005 Revised: 29.01.2007
Citation:
V. A. Lyubetskii, S. A. Pirogov, “Nonstandard Representations of Locally Compact Groups”, Mat. Zametki, 82:3 (2007), 383–389; Math. Notes, 82:3 (2007), 341–346
Linking options:
https://www.mathnet.ru/eng/mzm3841https://doi.org/10.4213/mzm3841 https://www.mathnet.ru/eng/mzm/v82/i3/p383
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