RUS  ENG
Full version
JOURNALS // Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya // Archive

Izv. RAN. Ser. Mat., 1999 Volume 63, Issue 5, Pages 159–178 (Mi im263)

This article is cited in 7 papers

Almost-representations and asymptotic representations of discrete groups

V. M. Manuilov

M. V. Lomonosov Moscow State University

Abstract: We define a new property of finitely presented groups connected with their asymptotic representations. Namely, we say that a group is AGA if each of its almost-representations generates an asymptotic representation. We give examples of groups with and without this property. In particular, free groups, finite groups and free Abelian groups are AGA. In our example of a group $\Gamma$ that is not AGA, the group $K^0(\mathrm B\Gamma)$ contains elements that are not covered by asymptotic representations of $\Gamma$.

MSC: 22D25

Received: 28.05.1998

DOI: 10.4213/im263


 English version:
Izvestiya: Mathematics, 1999, 63:5, 995–1014

Bibliographic databases:


© Steklov Math. Inst. of RAS, 2024