Results 31 to 40 of about 934,965 (146)

Weighted Bergman Kernels and Mathematical Physics

open access: yesAxioms, 2020
We review several results in the theory of weighted Bergman kernels. Weighted Bergman kernels generalize ordinary Bergman kernels of domains Ω ⊂ C n but also appear locally in the attempt to quantize classical states of mechanical systems ...
Elisabetta Barletta   +2 more
doaj   +1 more source

On Hardy spaces on worm domains

open access: yesConcrete Operators, 2016
In this review article we present the problem of studying Hardy spaces and the related Szeg˝o projection on worm domains. We review the importance of the Diederich–Fornæss worm domain as a smooth bounded pseudoconvex domain whose Bergman projection does ...
Monguzzi Alessandro
doaj   +1 more source

Visibility domains that are not pseudoconvex

open access: yes, 2023
The earliest examples of visibility domains, given by Bharali--Zimmer, are pseudoconvex. In fact, all known examples of visibility domains are pseudoconvex. We show that there exist non-pseudoconvex visibility domains.
Banik, Annapurna
core  

ON SOME NEW PROJECTION THEOREMS AND SHARP ESTIMATES IN HERZ TYPE SPACES IN BOUNDED PSEUDOCONVEX DOMAINS [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2018
We prove new projection theorems for new Herz type spaces in various domains in Cn in the unit disk, unit ball, bounded pseudoconvex domains and based on these results we provide sharp estimates for distances in such type spaces under one condition on ...
R. F. Shamoyan, A. N. Shipka
doaj  

Smoothness to the Boundary of Biholomorphic Mappings

open access: yesInternational Journal of Analysis and Applications, 2015
Under a plausible geometric hypothesis, we show that a biholomorphic mappingof smoothly bounded, pseudoconvex domains extends to a diffeomorphism of the closures.
Steven G. Krantz
doaj   +2 more sources

The equation on variable strictly pseudoconvex domains

open access: yes, 2017
We investigate regularity properties of the (partial derivative) over bar -equation on domains in a complex euclidean space that depend on a parameter. Both the interior regularity and the regularity in the parameter are obtained for a continuous family ...
Gong, Xianghong   +3 more
core   +1 more source

Spectra of subnormal pairs [PDF]

open access: yesOpuscula Mathematica, 2007
In this short note we present an example related to joint spectra of subnormal pairs of bounded operators. A counterexample to the equality between Taylor's spectrum and the closure of the defect spectrum is given. This example is related to the author's
Krzysztof Rudol
doaj  

Projected Composition Operators on Pseudoconvex Domains [PDF]

open access: yesIntegral Equations and Operator Theory, 2021
Let $Ω\subset \mathbb{C}^n$ be a smooth bounded pseudoconvex domain and $A^2 (Ω)$ denote its Bergman space. Let $P:L^2(Ω)\longrightarrow A^2(Ω)$ be the Bergman projection. For a measurable $φ:Ω\longrightarrow Ω$, the projected composition operator is defined by $(K_φf)(z) = P(f \circ φ)(z), z \inΩ, f\in A^2 (Ω).$ In 1994, Rochberg studied boundedness ...
openaire   +3 more sources

Families of strictly pseudoconvex domains and peak functions [PDF]

open access: yes, 2017
We prove that given a family (Gt) of strictly pseudoconvex domains varying in C2 topology on domains, there exists a continuously varying family of peak functions ht,ζ for all Gt at every ζ∈∂Gt
Arkadiusz Lewandowski   +1 more
core   +1 more source

A Sheaf‐Theoretic CR Reduction for Levi‐Flat Manifolds Beyond the Kähler Setting

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2026, Issue 1, 2026.
This paper develops a sheaf‐theoretic reduction formalism for real‐analytic homogeneous CR manifolds realized as orbits in complex homogeneous manifolds. Let M = G0/H0 be such a CR manifold, let M↪X be a complex realization, and let π : X⟶Y be the holomorphic reduction of the ambient complex manifold.
Abdel Rahman Al-Abdallah, Shikha Binwal
wiley   +1 more source

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