98 citations · 841 across the 52 of their papers we have counts for
61 papers
A family of exotic group C*-algebras
Maria Gerasimova, Nicolas Monod
We show that a large family of groups without non-abelian free subgroups satisfy the following strengthening of non-amenability: they each have a rich supply of irreducible represe…
Lie groups in the symmetric group: reducing Ulam's problem to the simple case
Annalisa Conversano, Nicolas Monod
Ulam asked whether all Lie groups can be represented faithfully on a countable set. We establish a reduction of Ulam's problem to the case of simple Lie groups. In particular, we s…
Some comments on piecewise-projective groups of the line
Nicolas Monod
We consider groups of piecewise-projective homeomorphisms of the line which are known to be non-amenable using notably the Carriere--Ghys theorem on ergodic equivalence relations.…
Asymptotic Cohomology and Uniform Stability for Lattices in Semisimple Groups
Lev Glebsky, Alexander Lubotzky, Nicolas Monod +1
It is, by now, classical that lattices in higher rank semisimple groups have various rigidity properties. In this work, we add another such rigidity property to the list: uniform s…
Between free and direct products of groups
Maxime Gheysens, Nicolas Monod
We investigate the group obtained by gluing together two groups and at the neutral element. This construction curiously shares some properties with the free prod…
Lamplighters and the bounded cohomology of Thompson's group
Nicolas Monod
We prove the vanishing of the bounded cohomology of lamplighter groups for a wide range of coefficients. This implies the same vanishing for a number of groups with self-similarity…