Multipliers of AW*-Algebren.
Spectral Formulas in Quotient C*-Algebras.
Approximation and convex decomposition by extremals in a C*-algebra.
Means and convex combinations of unitary operators.
Corona C*-algebras and their applications to lifting problems.
On the geometry of the unit ball of a C*- algebra.
Crossed products of C*-algebras by approximately uniformly continous actions.
Ideal perturbations of elements in C*-Algebras.
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