Maria Gerasimova, Konstantin Shchepin
Published 2023-05-15Version 1
We study stability of amalgamated free products and HNN extensions of stable groups over finite groups. We focus on operator norm stability, Hilbert-Schmidt stability and stability in permutations. We provide many new examples of stable (or flexibly stable) non-amenable groups.
Rank gradient and p-gradient of amalgamated free products and HNN extensions
C$^*$-simple groups: amalgamated free products, HNN extensions, and fundamental groups of 3-manifolds
Centralizers of coprime automorphisms of finite groups
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