27 citations · 72 across the 15 of their papers we have counts for
4 papers · 1 filter
Analytic properties of approximate lattices
Michael Björklund, Tobias Hartnick
We introduce a notion of cocycle-induction for strong uniform approximate lattices in locally compact second countable groups and use it to relate (relative) Kazhdan- and Haagerup-…
Approximate lattices
Michael Björklund, Tobias Hartnick
In this article we introduce and study uniform and non-uniform approximate lattices in locally compact second countable (lcsc) groups. These are approximate subgroups (in the sense…
Quasi-state Rigidity for Finite-dimensional Lie Algebras
Michael Björklund, Tobias Hartnick
We say that a Lie algebra $\gfr$ is quasi-state rigid if every Ad-invariant continuous Lie quasi-state on it is the directional derivative of a homogeneous quasimorphism. Extending…
Biharmonic functions on groups and limit theorems for quasimorphisms along random walks
Michael Björklund, Tobias Hartnick
We show for very general classes of measures on locally compact second countable groups that every Borel measurable quasimorphism is at bounded distance from a quasi-biharmonic one…