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arXiv · 2305.08720

Stability of amalgamated free products and HNN extensions

Maria Gerasimova·Konstantin Shchepin
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Abstract

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.

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Maria Gerasimova, Konstantin Shchepin. 2023-05-15. Stability of amalgamated free products and HNN extensions. https://arxiv.org/abs/2305.08720

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