On applicability of the projection method to two-dimensional Toeplitz operators with measurable symbol.
On domination problem in Banach algebras
On maximal ideals in commutative m-convex algebras
On multiplicative linear functionals
On quasinilpotent equivalence of finite rank elements in Banach algebras
We characterize elements in a semisimple Banach algebra which are quasinilpotent equivalent to maximal finite rank elements.
On rank one and finite elements of Banach algebras
We give a spectral characterisation of rank one elements and of the socle of a semisimple Banach algebra.
On rank one elements
Without the "scarcity lemma", two kinds of "rank one elements" are identified in semisimple Banach algebras.
On regularities and Fredholm theory
We investigate the relationship between the regularities and the Fredholm theory in a Banach algebra.
On Riesz and Inessential Operators.
On the abstract theorem of Picard.
On the Arens products and reflexive Banach algebras.
On the contracted -algebra of a polycyclic monoid.
On the ideals of extended quasi-nilpotent Banach algebras.
On the range of n th order derivations acting on commutative Banach positive squares ℓ-algebras
In this paper we prove that the image of a nth order derivation on real commutative Banach ℓ-algebras with positive squares is contained in the set of nilpotent elements.
On the ranks of Elements of Semiprime Banach Algebras
On topological algebras