33 citations · 97 across the 12 of their papers we have counts for
12 papers
Homomorphisms of algebras and Fourier algebras
M. Anoussis, G. K. Eleftherakis, A. Katavolos
We investigate conditions for the extendibility of continuous algebra homomorphisms from the Fourier algebra of a locally compact group to the Fourier-Stieltjes alge…
Synthetic properties of locally compact groups: preservation and transference
M. Anoussis, G. K. Eleftherakis, A. Katavolos
Using techniques from TRO equivalence of masa bimodules we prove various transference results: We show that when is a group homomorphism which pushes forward the Haar measure o…
Idempotents of large norm and homomorphisms of Fourier algebras
M. Anoussis, G. K. Eleftherakis, A. Katavolos
We provide necessary and sufficient conditions for the existence of idempotents of arbitrarily large norms in the Fourier algebra A(G) and the Fourier-Stieltjes algebra B(G) of a l…
Homomorphisms of Fourier algebras and transference results
M. Anoussis, G. K. Eleftherakis, A. Katavolos
We prove that if is a homomorphism between the Fourier algebra of a locally compact group and the Fourier-Stieltjes algebra of a locally compact group in…
Bimodules over , harmonic operators and the non-commutative Poisson boundary
Mihalis Anoussis, Aristides Katavolos, Ivan G. Todorov
Starting with a left ideal of we consider its annihilator in and the generated -bimodule in , ${\rm Bim}(…
Ideals of the Fourier algebra, supports and harmonic operators
M. Anoussis, A. Katavolos, I. G. Todorov
We examine the common null spaces of families of Herz-Schur multipliers and apply our results to study jointly harmonic operators and their relation with jointly harmonic functiona…
Ideals of and bimodules over maximal abelian selfadjoint algebras
M. Anoussis, A. Katavolos, I. G. Todorov
This paper is concerned with weak* closed masa-bimodules generated by A(G)-invariant subspaces of VN(G). An annihilator formula is established, which is used to characterise the we…
Operator algebras from the discrete Heisenberg semigroup
M. Anoussis, A. Katavolos, I. G. Todorov
We study reflexivity and structure properties of operator algebras generated by representations of the discrete Heisenberg semi-group. We show that the left regular representation…
Angles in C*-algebras
M. Anoussis, A. Katavolos, I. G. Todorov
In this work we characterise the C*-algebras A generated by projections with the property that every pair of projections in A has positive angle, as certain extensions of abelian a…
On the ranges of bimodule projections
Aristides Katavolos, Vern I. Paulsen
We develop a symbol calculus for normal bimodule maps over a masa that is the natural analogue of the Schur product theory. Using this calculus we are able to easily give a complet…
The Jacobson radical for analytic crossed products
Allan P. Donsig, Aristides Katavolos, Antonios Manoussos
We characterise the (Jacobson) radical of the analytic crossed product of C_0(X) by the non-negative integers (Z_+), answering a question first raised by Arveson and Josephson in 1…
Normalizers of Operator Algebras and Reflexivity
A. Katavolos, I. G. Todorov
The set of normalizers between von Neumann (or, more generally, reflexive) algebras A and B, (that is, the set of all operators x such that xAx* is a subset of B and x*Bx is a subs…