Results 11 to 20 of about 14,266 (165)

New estimations for the Berezin number inequality [PDF]

open access: yesJournal of Inequalities and Applications, 2020
AbstractIn this paper, by the definition of Berezin number, we present some inequalities involving the operator geometric mean. For instance, it is shown that if $X, Y, Z\in {\mathcal{L}}(\mathcal{H})$X,Y,Z∈L(H) such that X and Y are positive operators, then $$\begin{aligned} \operatorname{ber}^{r} \bigl( ( X\mathbin{\sharp} Y ) Z \bigr) &\leq ...
Mojtaba Bakherad, Ulas Yamancı
openaire   +5 more sources

New Inequalities and an Integral Expression for the 𝒜‐Berezin Number

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
This work examines a reproducing kernel Hilbert space XF,·,· constructed on a nonempty set F. Our investigation focuses on the A‐Berezin number and the A‐Berezin norm, where A denotes a positive bounded linear operator acting on XF. For an A‐bounded linear operator B, the A‐Berezin seminorm is defined by BberA=supλ,ν∈FBu∧λ,u∧νA, where u∧λ and u∧ν are ...
Salma Aljawi   +4 more
wiley   +2 more sources

A Method for Weight Multiplicity Computation Based on Berezin Quantization [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
Let $G$ be a compact semisimple Lie group and $T$ be a maximal torus of $G$. We describe a method for weight multiplicity computation in unitary irreducible representations of $G$, based on the theory of Berezin quantization on $G/T$.
Bar-Moshe, David
core   +7 more sources

Quantitative Mapping of Fibrotic Tissue Mechanics via Brillouin Spectroscopy. [PDF]

open access: yesJ Biophotonics
Brillouin spectroscopy distinguishes fibrotic from healthy tissue based on localized stiffness changes and enables real‐time monitoring of dynamic alterations in viscoelastic properties during fibrogenesis.ABSTRACTFibrosis is a pathological scarring process that disrupts tissue architecture, and is characterized by excessive extracellular matrix (ECM ...
Cheburkanov V   +3 more
europepmc   +2 more sources

Berezin Yarıçapı İçin Diğer Eşitsizlikler

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2023
İşlevsel Hilbert uzayları, istatistik, yaklaşım teorisi, grup temsili teorisi, vb. dahil olmak üzere birçok alanda ortaya çıkar. İşlevsel Hilbert uzay sayesinde tanımlanan Berezin dönüşümü ise, düzgün fonksiyonları analitik fonksiyonların Hilbert ...
Mehmet Gürdal, Hamdullah Başaran
doaj   +1 more source

A characterization of operators via Berezin symbol and related questions

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
In this paper, we characterize the hyponormal operators with regard to Berezin symbol and reproducing kernel. Also, we demonstrate several Berezin number inequalities for bounded linear operators.
Yamancı Ulaş
doaj   +1 more source

Some New Estimates for the Berezin Number of Hilbert Space Operators

open access: yesAxioms, 2022
In this paper, we have developed new estimates of some estimates involving the Berezin norm and Berezin number of bounded linear operators defined on a reproducing kernel Hilbert space HΩ.
Najla Altwaijry   +2 more
doaj   +1 more source

A Generalized Norm on Reproducing Kernel Hilbert Spaces and Its Applications

open access: yesAxioms, 2023
The aim of this article was to provide improved estimates for the (α,β)-norm of a bounded linear operator. In particular, our results enabled the determination of new upper bounds involving both the Berezin number and the Berezin norm of bounded linear ...
Najla Altwaijry   +2 more
doaj   +1 more source

More Correct Berezin Symbol Inequalities

open access: yesDera Natung Government College Research Journal, 2023
The purpose of this research is to show bounds for some Berezin number inequalities in an innovative approach. Some inequalities have been proven using the improvement of the Hermite-Hadamard inequality.
Hamdullah Başaran, Mehmet Gurdal
doaj   +1 more source

Artan Operatör Konveks Fonksiyon İçin Berezin Sayı Eşitsizliği

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2021
Normalleştirilmiş $K_{\lambda}:=\frac{k_{\lambda}}{\left\Vert k_{\lambda}\right\Vert_{\mathcal{H}}}$, üretici çekirdekli $\mathcal{H}\left( \Omega\right) $, Hilbert uzayı üzerinde $A$ sınırlı lineer operatör için Berezin sembolü ve Berezin sayısı ...
Mehmet Gürdal   +2 more
doaj   +1 more source

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