From Lomonosov Lemma to radical approach in joint spectral radius theory

Kissin, Edward, Shulman, Victor S. and Turovskii, Yuri V. (2019) From Lomonosov Lemma to radical approach in joint spectral radius theory. In: Advances in Analysis and Geometry, The Mathematical Legacy of Victor Lomonosov. Operator Theory,. De Gruyter, Berlin, Boston, pp. 205-230. ISBN 978-3-11-065339-7

Abstract

In this paper we discuss the infnite-dimensional generalizations of the famous theorem of Berger-Wang (generalized Berger-Wang formulas) and give an operator-theoretic proof of I. Morris's theorem about coincidence of three essential joint spectral radius, related to these formulas. Further we develop Banach-algebraic approach based on the theory of topological radicals, and obtain some new results about these radicals.

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