Unitary representations of totally disconnected locally compact groups satisfying Ol′šhanskiĭ’s factorisation

Abstract

Inspired by Ol′šhanskiĭ’s work, we provide an axiomatic framework to describe certain irreducible unitary representations of non-discrete unimodular totally disconnected locally compact groups. We look at the applications to certain groups of automorphisms of locally finite trees and semi-regular right-angled buildings.