We study the existence of quasi-representations of discrete groups into unitary groups that induce prescribed partial maps on the K-theory of the group C*-algebra of . We give conditions for a discrete group under which the K-theory group of the classifying space consists entirely of almost flat classes.
Cite this article
Marius Dadarlat, Group quasi-representations and almost flat bundles. J. Noncommut. Geom. 8 (2014), no. 1, pp. 163–178DOI 10.4171/JNCG/152