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Spectral theory in commutatively ordered banach algebras
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: See full text.
Rank one and finite rank elements of Banach algebras
(Stellenbosch : Stellenbosch University, 2007-12)
ENGLISH ABSTRACT: Let A be a unital complex Banach algebra, which we shall simply refer to as a Banach algebra. An element u in A is single if xuy = 0, where x, y E A, implies that xu = 0 or uy = 0. We say that u acts ...