activity
19992026
most citedStrong Monotonicity of Spectral Radius of Positive Operators

6 citations · 10 across the 21 of their papers we have counts for

collaborators

23 papers

math.GN2026

Hölder Selections under Stieltjes Clocks: Uniform Disconnectedness and Jump Dominance

Serkan İlter, Hülya Duru, Arkady Kitover +1

It is known that, for ordinary Hölder multifunctions with 0 < α < 1, Hölder regularity alone does not guarantee the existence of a Hölder selection, and in general even a continuou…

math.FA2026

Compact disjointness preserving operators on Banach -modules

Arkady Kitover, Mehmet Orhon

We show that some well known results concerning compact disjointness preserving operators on Banach lattices can be extended to the more general framework of finitely generated Ban…

math.FA2025

Spectrum of weighted composition operators. Part XII. Kamowitz - Scheinberg theorem revisited

Arkady Kitover, Mehmet Orhon

The well-known Kamowitz - Scheinberg theorem states that if is an automorphism of a commutative semi-simple Banach algebra and $U^n \neq I, n \in \mathds{N}$, then the spectrum…

math.SP2025

Spectrum of weighted composition operators. Part XI. The essential spectra of some weighted composition operators on the disc algebra

Arkady Kitover, Mehmet Orhon

We obtain a complete description of semi-Fredholm spectra of operators of the form acting on the disc algebra in the case when is either elliptic or doub…

math.FA2024

Spectrum of Weighted Composition Operators. Part X. The spectrum and essential spectra of weighted automorphisms of the polydisc algebra

Arkady Kitover, Mehmet Orhon

We investigate the spectrum and the essential spectra of weighted automorphisms of the polydisc algebra . In the case we provide a detailed and, in most cases,…

math.SP2023

Spectrum of Weighted Composition Operators. Part IX. The spectrum and essential spectra of some weighted composition operators on uniform algebras

Arkady Kitover, Mehmet Orhon

We obtain some results about the spectrum and the upper semi-Fredholm spectrum of weighted composition operators on uniform algebras, assuming that the corresponding map maps the S…