Blar i ODA Open Digital Archive på forfatter "Bryder, Rasmus Sylvester"
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C*-simplicity of HNN extensions and groups acting on trees
Bryder, Rasmus Sylvester; Ivanov, Nikolay A.; Omland, Tron (Annales de l'Institut Fourier;volume 70, issue 4, Peer reviewed; Journal article, 2021-04-15)We study non-ascending HNN extensions acting on their Bass– Serre tree and characterize C∗-simplicity and the unique trace property by means of the kernel and quasi-kernels of the HNN extension in question. We also present ...