The spectral radius in -Banach algebras

  • Walther Paravicini

    University of Münster, Germany


The spectral radius of an element of a -Banach algebra can be calculated as the supremum of the spectral radii in the fibres. As a consequence, calculations in K-theory for such algebras can potentially be carried out fibrewise.

Cite this article

Walther Paravicini, The spectral radius in -Banach algebras. J. Noncommut. Geom. 7 (2013), no. 1, pp. 135–147

DOI 10.4171/JNCG/111