On Integral Representation and the Choquet Boundary for Convolution Algebras of Measures.
On inverse-closed algebras of infinitely differentiable functions
On joint spectra of pairs of analytic Toeplitz operators
One computes the joint and essential joint spectra of a pair of multiplication operators with bounded analytic functions on the Hardy spaces of the unit ball in .
On joint spectral radii in locally convex algebras
We present several notions of joint spectral radius of mutually commuting elements of a locally convex algebra and prove that all of them yield the same value in case the algebra is pseudo-complete. This generalizes a result proved by the author in 1993 for elements of a Banach algebra.
On linear extension for interpolating sequences
Let A be a uniform algebra on X and σ a probability measure on X. We define the Hardy spaces and the interpolating sequences S in the p-spectrum of σ. We prove, under some structural hypotheses on A and σ, that if S is a “dual bounded” Carleson sequence, then S is -interpolating with a linear extension operator for s < p, provided that either p = ∞ or p ≤ 2. In the case of the unit ball of ℂⁿ we find, for instance, that if S is dual bounded in then S is -interpolating with a linear...
On linear functionals in Hardy-Orlicz spaces, I
On linear functionals in Hardy-Orlicz spaces, II
On linear functionals in Hardy-Orlicz spaces. III
On Liouville F-Algebras
On locally m-convex algebras of type ES
On locally pseudoconvexes square algebras.
Let A be an algebra over the field of complex numbers with a (Hausdorff) topology given by a family Q = {qλ|λ ∈ Λ} of square preserving rλ-homogeneous seminorms (rλ ∈ (0, 1]). We shall show that (A, T(Q)) is a locally m-convex algebra. Furthermore we shall show that A is commutative.
On maximal and complete regions
On maximal ideals in commutative m-convex algebras
On multiplication in spaces of continuous functions
We introduce and examine the notion of dense weak openness. In particular we show that multiplication in C(X) is densely weakly open whenever X is an interval in ℝ.
On neighborhoods of the Kuratowski imbedding beyond the first extremum of the diameter functional
On non-removable ideals in commutative locally convex algebras
On permanent radicals in commutative locally convex algebras
On permanently singular elements in commutative m-convex locally convex algebras
On projections in spaces of bounded analytic functions with applications
On Relative Commutants in Tensor Products of C*-algebras.