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Brief communications
Representations of Nilpotent Groups: Extensions, Neutral Cohomology, and Pontryagin Spaces
È. V. Kissina, V. S. Shulmanb a London Metropolitan University
b Vologda State University
Abstract:
Spectral criteria for the cohomological triviality of extensions of representations of connected nilpotent groups are obtained. They are applied to the study of symmetrized extensions of unitary representations by finite-dimensional representations and to the theory of $J$-unitary representations of groups on Pontryagin spaces.
Keywords:
extension of representation, Pontryagin space, Engel element, neutral cocycle.
Received: 27.08.2014
Citation:
È. V. Kissin, V. S. Shulman, “Representations of Nilpotent Groups: Extensions, Neutral Cohomology, and Pontryagin Spaces”, Funktsional. Anal. i Prilozhen., 49:3 (2015), 79–83; Funct. Anal. Appl., 49:3 (2015), 222–225
Linking options:
https://www.mathnet.ru/eng/faa3208https://doi.org/10.4213/faa3208 https://www.mathnet.ru/eng/faa/v49/i3/p79
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Abstract page: | 356 | Full-text PDF : | 134 | References: | 47 | First page: | 28 |
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