On a method of determining supports of Thoma's characters of discrete groups

DOI10.4064/ap-67-2-199-202zbMath0882.43007OpenAlexW1171558791MaRDI QIDQ4359158

Ernest Płonka

Publication date: 2 March 1998

Published in: Annales Polonici Mathematici (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.4064/ap-67-2-199-202

zbMATH Keywords

\(C^*\)-algebracharactersnilpotent groupsvon Neumann algebrasGNS-representationpositive definite function

Mathematics Subject Classification ID

Positive definite functions on groups, semigroups, etc. (43A35) Character groups and dual objects (43A40)

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