Results 71 to 80 of about 374,962 (187)

Bounds on Riesz Means of the Eigenvalues for Baouendi–Grushin Type Operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
The aim of this paper is to consider spectral inequalities of a class of Baouendi–Grushin type operators in cylinders. Such operators are hypoelliptic and we obtain non‐Weyl type inequalities depending on the rate of the degeneracy. We also give an example where all eigenvalues and eigenfunctions are computed explicitly.
Alaa Aljahili, Ari Laptev, Shikha Binwal
wiley   +1 more source

A new mean-Berezin norm for operators in reproducing kernel Hilbert spaces

open access: yesJournal of Inequalities and Applications
A functional Hilbert space is defined as the Hilbert space K $\mathcal{K}$ of complex-valued functions defined on a set Θ. In this space, the evaluation functionals ψ ε ( h ) = h ( ε ) $\psi _{\varepsilon}(h) = h(\varepsilon )$ , for ε ∈ Θ $\varepsilon ...
Mojtaba Bakherad
doaj   +1 more source

Emotion in and through crisis

open access: yesThe British Journal of Sociology, Volume 75, Issue 5, Page 908-921, December 2024.
Abstract To the extent that emotions are noticed in consideration of crisis they are typically thought to be negative, linked to the disruptive consequences of crisis. Based on semi‐structured in‐depth interviews the article shows that crisis precipitates not only negative but also positive emotions and that the complex of emotional experiences that ...
Xiaoying Qi
wiley   +1 more source

Semiclassical quantization and spectral limits of h-pseudodifferential and Berezin-Toeplitz operators

open access: yes, 2013
We introduce a minimalistic notion of semiclassical quantization and use it to prove that the convex hull of the semiclassical spectrum of a quantum system given by a collection of commuting operators converges to the convex hull of the spectrum of the ...
Ngoc, San Vũ   +2 more
core   +3 more sources

‘SANCTUARY FOR ALL’ OR ‘SANCTUARY FOR THE DESERVING’: How Municipal Bureaucracies Mediate and Decide Contentious Struggles over Urban Citizenship

open access: yesInternational Journal of Urban and Regional Research, Volume 48, Issue 5, Page 743-763, September 2024.
Abstract During the late 2010s, pro‐immigrant activists in the politically progressive municipality of Mayville, California (pseudonym) mounted a campaign to enact a radically egalitarian sanctuary city policy (“sanctuary for all”) that would have changed the boundaries of urban citizenship.
Walter Nicholls
wiley   +1 more source

Some results related with statistical convergence and Berezin symbols

open access: yesJournal of Mathematical Analysis and Applications, 2004
A functional Hilbert space is a Hilbert space \(\mathcal{H}\) of complex-valued functions on some set \(\Omega\) such that the evaluation functional \(f \to f(\lambda)\) is continuous for each \(\lambda \in \Omega\). Moreover, for each \(\lambda \in \Omega\) there exists a unique function \(k_{\lambda} \in \mathcal{H}\) such that \(f(\lambda) = (f, k_{\
Pehlivan, Serpil, Karaev, MT
openaire   +2 more sources

Local limits in p$p$‐adic random matrix theory

open access: yesProceedings of the London Mathematical Society, Volume 129, Issue 3, September 2024.
Abstract We study the distribution of singular numbers of products of certain classes of p$p$‐adic random matrices, as both the matrix size and number of products go to ∞$\infty$ simultaneously. In this limit, we prove convergence of the local statistics to a new random point configuration on Z$\mathbb {Z}$, defined explicitly in terms of certain ...
Roger Van Peski
wiley   +1 more source

Radicalization to the right, secular (ish) pandemic politics and the normalization of the Greek Cypriot far right

open access: yesNations and Nationalism, Volume 30, Issue 3, Page 441-457, July 2024.
Abstract One of the many dimensions of the global tussle surrounding the Covid‐19 pandemic has been the rise of right‐wing radicalization. In this article, we investigate whether the pandemic offered an opportunity for the Greek Cypriot far‐right party, ELAM, to increase its visibility as an opposition force and in what ways.
Yiannos Katsourides, Leandros Savvides
wiley   +1 more source

Infinitesimal deformations of a formal symplectic groupoid

open access: yes, 2011
Given a formal symplectic groupoid $G$ over a Poisson manifold $(M, \pi_0)$, we define a new object, an infinitesimal deformation of $G$, which can be thought of as a formal symplectic groupoid over the manifold $M$ equipped with an infinitesimal ...
A. Karabegov   +15 more
core   +1 more source

Coherent state quantization of paragrassmann algebras

open access: yes, 2010
By using a coherent state quantization of paragrassmann variables, operators are constructed in finite Hilbert spaces. We thus obtain in a straightforward way a matrix representation of the paragrassmann algebra.
Baz, M. El   +3 more
core   +1 more source

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