Finite-dimensional approximations of certain amalgamated free products of groups
Year: 2024
Type: article
Abstract: A group is called matricial field (MF) if it admits finite-dimensional approximate unitary representations which are approximately faithful and approximately contained in the left regular representation. This paper provides a new class of MF groups by showing that given two amenable groups with a common normal subgroup, the amalgamated free product is MF.
Source: Groups Geometry and Dynamics
DOI: 10.4171/ggd/826
Author: Christopher Schafhauser
Institution: University of Nebraska–Lincoln
Language: English
Subfield: Mathematical Physics
Field: Mathematics
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4404165101