Results 31 to 40 of about 20,552 (179)

Left and Right B-Fredholm Operators

Ukrainian Mathematical Journal, 2022
UDC 517.9 We introduce the families of left and right B-Fredholm operators in Banach space, realize their stabilization with the help of finite-rank operators, and  prove a spectral mapping theorem for the left and right B-Fredholm operators.
Abdmouleh, F., Lakhal, T. Ben
openaire   +2 more sources

Fredholm conditions on non-compact manifolds: theory and examples

, 2017
We give explicit Fredholm conditions for classes of pseudodifferential operators on suitable singular and non-compact spaces. In particular, we include a "user's guide" to Fredholm conditions on particular classes of manifolds including asymptotically ...
Carvalho, Catarina, Nistor, Victor, Qiao, Yu   +2 more
core   +1 more source

Unbounded generalized B-Fredholm operators

Extracta Mathematicae
In this paper, we investigate a new class of unbounded linear operators, that is, the unbounded generalized B-Fredholm operators in Banach space. More explicitly, we provide a characterization of this class of operators and some of its basic properties ...
M. Boudhief
doaj   +1 more source

Tauberian operators in p-adic analysis

International Journal of Mathematics and Mathematical Sciences, 2000
In archimedean analysis Tauberian operators and operators having property N were defined by Kalton and Wilansky (1976). We give several characterizations of p-adic Tauberian operators and operators having property N in terms of basic sequences.
Takemitsu Kiyosawa
doaj   +1 more source

Multiplication Operators on Cesàro Sequence Spaces

Demonstratio Mathematica, 2016
In this paper we characterize the compact, invertible and Fredholm multiplication operators on Cesàro sequence spaces.
Komal B. S., Pandoh Suruchi, Raj Kuldip
doaj   +1 more source

Essential spectra in non-Archimedean fields

Математичні Студії, 2022
In the paper we extend some aspects of the essential spectra theory of linear operators acting in non-Archimedean (or p-adic) Banach spaces. In particular, we establish sufficient conditions for the relations between the essential spectra of the sum of ...
A. Ammar, F. Z. Boutaf, A. Jeribi
doaj   +1 more source

Feedback control of excitability and high K+ induced epileptiform bursts in male rat hippocampal slices with a photocaged adenosine A1 receptor agonist

British Journal of Pharmacology, EarlyView.
Background and Purpose Adenosine is a potent regulator of neurotransmission and neuronal excitability, through activation of Gi coupled adenosine A1 receptors (A1Rs). Adenosine has gained interest as an anticonvulsant because of its endogenous involvement in ending seizure activity, but peripheral side effects require local application.
Erine Craey, Marijke Vergaelen, Serge Van Calenbergh, Jeroen Spanoghe, Evelien Carrette, Kristl Vonck, Paul Boon, Wytse J. Wadman, Robrecht Raedt   +8 more
wiley   +1 more source

Fredholm composition operators [PDF]

Proceedings of the American Mathematical Society, 1997
Summary: Fredholm composition operators on a variety of Hilbert spaces of analytic functions on domains in \(\mathbb{C}^n\), \(N\geq 1\), are characterized.
openaire   +1 more source

Integrative Computational and Experimental Approaches Reveal the Protective Role of Moderate Caffeine Intake Against Apical Periodontitis Induced Bone Loss

International Endodontic Journal, EarlyView.
ABSTRACT Aim To investigate whether moderate systemic caffeine intake modulates the progression of apical periodontitis (AP) and associated alveolar bone loss, combining in vivo rat experiments with in silico molecular docking to explore potential mechanisms. Methodology Male Wistar rats were randomly assigned to four groups (n = 8 per group): control,
Matheus Ferreira Lima Rodrigues, Deborah Ribeiro Frazão, Deiweson Souza‐Monteiro, Vinicius Ruan Neves dos Santos, Felipe Oliveira Nunes, João Daniel Mendonça de Moura, Thamires Campos Gomes, Jorddy Neves Cruz, Cristiane do Socorro Ferraz Maia, Rodrigo A. Cunha, Fabrício Mezzomo Collares, Rogerio de Castilho Jacinto, Rafael Rodrigues Lima   +12 more
wiley   +1 more source

Composition Operators on Cesàro Function Spaces

Journal of Function Spaces, 2014
The compact, invertible, Fredholm, and closed range composition operators are characterized. We also make an effort to compute the essential norm of composition operators on the Cesàro function spaces.
Kuldip Raj, Suruchi Pandoh, Seema Jamwal
doaj   +1 more source