Results 61 to 70 of about 1,089 (168)

New Poisson–Sch type inequalities and their applications in quantum calculus

open access: yesJournal of Inequalities and Applications, 2018
The Poisson type inequalities, which were improved by Shu, Chen, and Vargas-De-Teón (J. Inequal. Appl. 2017:114, 2017), are generalized by using Poisson identities involving modified Poisson kernel functions with respect to a cone. New generalizations of
Tao Liu, Xinjuan Chen, Yifan Xing
doaj   +1 more source

Toeplitz Operators on the Weighted Bergman Space over the Two-Dimensional Unit Ball

open access: yesJournal of Function Spaces, 2015
We extend the known results on commutative Banach algebras generated by Toeplitz operators with radial quasi-homogeneous symbols on the two-dimensional unit ball.
Alma García, Nikolai Vasilevski
doaj   +1 more source

Invertible weighted composition operators in the unit ball

open access: yes四川大学学报. 自然科学版, 2016
The operator Cψ,φ that maps a holomorphic function f to ψ*f。φis called weighted composition operator,where ψ is a holomorphic function and φ is a holomorphic map.
ZHANG Kuang
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A NOTE ON A TWO-PARAMETER FAMILY OF OPERATORS ${\MATHCAL A}^{B,C}$ ON WEIGHTED BERGMAN SPACES

open access: yesПроблемы анализа, 2019
In this article, we prove that the two-parameter family of operators Ab,c is bounded on the weighted Bergman spaces B p α+c−1 if α + 2 < p and unbounded if α + 2 = p.
S. Naik, P. K. Nath
doaj   +1 more source

Isoperimetric inequalities for conformal moments of plane domains

open access: yesJournal of Inequalities and Applications, 2002
We prove a new sharp inequality for norms in weighted Bergman space. This inequality is then used to derive isoperimetric inequalities for geometric functionals which are closely related to the torsional rigidity of a simply connected domain (F.
Avkhadiev FG, Salahudinov RG
doaj  

Pointwise Bernstein-walsh-type Inequalities In Regions With Piecewise Dini-smooth Boundary

open access: yesMANAS: Journal of Engineering, 2017
In this work, we investigate the order of growth of the modulus of an arbitrary algebraic polynomials in the weighted Bergman space, where the contour and the weight functions have some singularities.
P. Özkartepe
doaj  

Small weighted Bergman spaces

open access: yes, 2015
arXiv admin note: substantial text overlap with arXiv:1210 ...
openaire   +2 more sources

Weighted Composition Operators from Generalized Weighted Bergman Spaces to Weighted-Type Spaces

open access: yesJournal of Inequalities and Applications, 2008
Let be a holomorphic self-map and let be a holomorphic function on the unit ball . The boundedness and compactness of the weighted composition operator from the generalized weighted Bergman space into a class of weighted-type spaces are studied in
Gu Dinggui
doaj  

Hankel Operators on Bergman Spaces with Change of Weight.

open access: yesMATHEMATICA SCANDINAVICA, 1992
Let \(A\) be the weighted Bergman space of analytic functions in \(L^ 2(\Omega, \mu)\), where \(\Omega\) is an open set in \(\mathbb{C}^ n\), and \(\mu\) is a suitable measure on \(\Omega\). Let \(f\) be a measurable function on \(\Omega\). The big Hankel operator \(H_ f\) is defined for \(g\in A\) via \(H_ f(g)= (1-P)(fg)\), where \(P\) is the ...
openaire   +2 more sources

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