Representing Positive Definite B-Invariant Functions on [FC]... Groups.
Results on Banach ideals and spaces of multipliers.
Second duals of measure algebras [Book]
Segal Algebras with Functorial Properties.
Sets of interpolation and small p sets
Solved and unsolved problems in generalized notions of amenability for Banach algebras
We survey the recent investigations on approximate amenability/contractibility and pseudo-amenability/contractibility for Banach algebras. We will discuss the core problems concerning these notions and address the significance of any solutions to them to the development of the field. A few new results are also included.
Some applications of fractional calculus to operator semigroups and functional calculus
We survey some recent results on functional calculus for generators of holomorphic semigroups, which have been obtained using versions of fractional derivation of Riemann-Liouville or Weyl type. Such a calculus allows us to give tight estimates even in concrete L¹ examples.
Some aspects of abstract harmonic analysis.
Some examples in harmonic analysis
Some homological properties of Banach algebras associated with locally compact groups
We investigate some homological notions of Banach algebras. In particular, for a locally compact group G we characterize the most important properties of G in terms of some homological properties of certain Banach algebras related to this group. Finally, we use these results to study generalized biflatness and biprojectivity of certain products of Segal algebras on G.
Some notions of amenability for certain products of Banach algebras
For two Banach algebras and ℬ, an interesting product , called the θ-Lau product, was recently introduced and studied for some nonzero characters θ on ℬ. Here, we characterize some notions of amenability as approximate amenability, essential amenability, n-weak amenability and cyclic amenability between and ℬ and their θ-Lau product.
Some properties of groups without the property P1.
Some Remarks on L1(G).
Spectral Synthesis on Algebras of Orthogonal Polynomial Series.
Standard ideals in convolution Sobolev algebras on the half-line
We study the relation between standard ideals of the convolution Sobolev algebra and the convolution Beurling algebra L¹((1+t)ⁿ) on the half-line (0,∞). In particular it is proved that all closed ideals in with compact and countable hull are standard.
Subalgebra of associated with Laplacian on a Lie group
Sur certaines propriétés des représentations unitaires des groups localement compacts
Sur les mesures quasi-idempotentes et la fermeture de
Symmetry and nonsymmetry for a class of exponential Lie groups.
Symmetry in Fourier-Stieltjes Algebras.