On the spectral radius in locally multiplicatively convex topological algebras
Dina Štěrbová (1977)
Sborník prací Přírodovědecké fakulty University Palackého v Olomouci. Matematika
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Displaying similar documents to “The Shirali-Ford theorem as a consequence of Ptak theory for hermitian Banach algebras”
On the spectral radius in locally multiplicatively convex topological algebras
Banach algebras with involution
Pták, V.
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A characterization of -algebras.
Gaur, A.K. (1997)
International Journal of Mathematics and Mathematical Sciences
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Generalization of the Shirali-Ford theorem in Hermitian locally multiplicatively convex algebras
Dina Štěrbová (1985)
Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
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Perturbation theorems for Hermitian elements in Banach algebras
Rajendra Bhatia, Driss Drissi (1999)
Studia Mathematica
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Two well-known theorems for Hermitian elements in C*-algebras are extended to Banach algebras. The first concerns the solution of the equation ax - xb = y, and the second gives sharp bounds for the distance between spectra of a and b when a, b are Hermitian.