On Schur multiplier and projective representations of Heisenberg groups [PDF]
Journal of Pure and Applied Algebra, 2021 15 ...
Hatui, Sumana, Singla, Pooja
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Extensions of multipliers and dilations of projective isometric representations [PDF]
Proceedings of the American Mathematical Society, 1997 Summary: An elementary proof of a multiplier extension theorem of \textit{M. Laca} and \textit{I. Raeburn} [Proc. Am. Math. Soc. 123, No. 2, 355-362 (1995; Zbl 0841.20058)] is presented. A very general dilation theorem is also derived.
G. Murphy
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Hilbert
Journal of Mathematical Analysis and Applications, 2007 The Naimark--Sz.--Nagy characterization of positive definite functions on groups and Stinespring's decomposition for completely positive maps on a \(C^*\)-algebra are well-known representation theorems. The covariant extension of Stinespring's theorem was given by \textit{V.\,Paulsen} [Mich.\ Math.\ J.\ 29, 131--142 (1982; Zbl 0507.46060)], and a more ...
Jaeseong Heo
semanticscholar +4 more sources
Continuity and measurability of multiplier and projective representations
Journal of Functional Analysis, 1974 AbstractIt is shown that various kinds of measurability of a multiplier representation of a locally compact group are equivalent, and are equivalent to the continuity of an ordinary representation of a related group. A unitary representation with measurable coefficients is the sum of a strongly continuous representation and a representation all of ...
A. Kleppner
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Projective representation of k-Galilei group [PDF]
, 1998 The projective representations of k-Galilei group G_k are found by contracting the relevant representations of k-Poincare group. The projective multiplier is found.
+18 more
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Projective Representations, Bogomolov Multiplier, and Their Applications in Physics
International Journal of Theoretical PhysicsWe present a pedagogical review of projective representations of finite groups and their physical applications in quantum many-body systems. Some of our physical results are new. We begin with a self-contained introduction to projective representations, highlighting the role of group cohomology, representation theory, and classification of irreducible ...
Kobayashi, Ryohei, Watanabe, Haruki
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Hofstadter Topology with Real Space Invariants and Reentrant Projective Symmetries. [PDF]
Physical Review Letters, 2022 Adding magnetic flux to a band structure breaks Bloch's theorem by realizing a projective representation of the translation group. The resulting Hofstadter spectrum encodes the nonperturbative response of the bands to flux.
J. Herzog-Arbeitman +18 more
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Some Properties of Univariate and Multivariate Exponential Power Distributions and Related Topics
Mathematics, 2020 In the paper, a survey of the main results concerning univariate and multivariate exponential power (EP) distributions is given, with main attention paid to mixture representations of these laws.
Victor Korolev
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Compatible systems of symplectic Galois representations and the inverse Galois problem I. Images of projective representations [PDF]
, 2012 This article is the first part of a series of three articles about compatible systems of symplectic Galois representations and applications to the inverse Galois problem. In this first part, we determine the smallest field over which the projectivisation
S. Arias-de-Reyna +2 more
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On projective representations of finitely generated groups [PDF]
Communications in Algebra, 2020 We prove a characterization of monomial projective representations of finitely generated nilpotent groups. We also characterize polycyclic groups whose projective representations are finite dimensional.
Sumana Hatui +2 more
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