Munn, W. D. Brown-McCoy semisimplicity of certain Banach algebras. (English) Zbl 1072.46030 Port. Math. (N.S.) 61, No. 4, 393-397 (2004); erratum ibid. 62, No. 2, 245 (2005). Summary: It is shown that if \(S\) is a free group, a free semigroup, or a free inverse semigroup, then the Brown-McCoy radical of the Banach algebra \(l^1(S)\) is zero. MSC: 46H05 General theory of topological algebras PDF BibTeX XML Cite \textit{W. D. Munn}, Port. Math. (N.S.) 61, No. 4, 393--397 (2005; Zbl 1072.46030) Full Text: EuDML OpenURL