2020
DOI: 10.1090/surv/250
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Unitary Representations of Groups, Duals, and Characters

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Cited by 34 publications
(24 citation statements)
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“…In particular, the following non-discrete version of Day's problem is open and intriguing: Is every amenable second countable tdlc group elementary (in the sense of Section 2)? The unitary representation theory also reveals a fundamental dichotomy between locally compact groups of type I (roughly speaking, those for which the problem of classifying the irreducible unitary representations up to equivalence is tractable) and the others (see [10,35,51]). Algebraic characterizations of type I groups are also desirable.…”
Section: Future Directionsmentioning
confidence: 99%
“…In particular, the following non-discrete version of Day's problem is open and intriguing: Is every amenable second countable tdlc group elementary (in the sense of Section 2)? The unitary representation theory also reveals a fundamental dichotomy between locally compact groups of type I (roughly speaking, those for which the problem of classifying the irreducible unitary representations up to equivalence is tractable) and the others (see [10,35,51]). Algebraic characterizations of type I groups are also desirable.…”
Section: Future Directionsmentioning
confidence: 99%
“…We prove here some preliminary results for later use. For the notions and notation in C‐algebras and topology, we refer the reader to [2, 6 10, 30].…”
Section: Preliminariesmentioning
confidence: 99%
“…Proof For every HL(G), we denote by jH:GG/H its corresponding quotient map. We define jĤ:G/ĤĜ,false[σfalse]false[σjHfalse]and (jH):Primfalse(G/Hfalse)Primfalse(Gfalse),KerσKerfalse(σjHfalse).By [2, Proposition 8.C.8], there exists a surjective ‐morphism (jH):Cfalse(Gfalse)Cfalse(G/Hfalse)satisfying σ(jH)=σjH for every false[σfalse]G/ĤCfalse(G/Hfalse)̂, where false[σjHfalse]ĜCfalse(Gfalse)̂. Therefore (jH…”
Section: On Primitively Af‐embeddable C∗‐algebrasmentioning
confidence: 99%
See 1 more Smart Citation
“…• CCR groups (See [BH19]), such as connected semisimple Lie groups or reductive algebraic groups over local fields. • Nilpotent groups (see [LW95]).…”
Section: Introductionmentioning
confidence: 99%