Generalizing normality for operators on Banach spaces: Hyponormality. I.
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Vasile I. Istratescu (1983)
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Richard J. Fleming, James E. Jamison (1980)
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This paper characterizes the hermitian operators on spaces of Banach-valued Lipschitz functions.
Rajendra Bhatia, Driss Drissi (1999)
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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.
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Michal Zajac (1978)
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Dina Štěrbová (1978)
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