Contraction Estimates on Groups.
C. Shubin, T. Wolff
2003, v.9, Issue 4, 829-840
ABSTRACT
Let $G$ be an almost simple group. We characterize representation $\rho$ and give suitable conditions on a probability measure $\mu$ on $G$ such that $\rho (\mu) = \int_G \rho(g) d\mu(g)$ is a strict contraction, i.e. $||\rho(\mu)|| <1$.
Keywords: averaged representations,contraction estimates,almostsimple groups
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