Hardy spaces and unbounded quasidisks
@article{Kim2010HardySA, title={Hardy spaces and unbounded quasidisks}, author={Yong Chan Kim and Toshiyuki Sugawa}, journal={arXiv: Complex Variables}, year={2010} }
We study the maximal number $0\le h\le+\infty$ for a given plane domain $\Omega$ such that $f\in H^p$ whenever $p<h$ and $f$ is analytic in the unit disk with values in $\Omega.$ One of our main contributions is an estimate of $h$ for unbounded $K$-quasidisks.
6 Citations
The Range of Hardy Numbers for Comb Domains
- MathematicsComputational Methods and Function Theory
- 2021
Let $$D\ne \mathbb {C}$$
be a simply connected domain and f be a Riemann mapping from $$\mathbb {D}$$
onto D. The Hardy number of D is the supremum of all p for which f belongs in the Hardy space…
The range of Hardy number on comb domains
- Mathematics
- 2021
Let D 6= C be a simply connected domain and f be the Riemann mapping from D onto D. The Hardy number of D is the supremum of all p for which f belongs in the Hardy space H (D). A comb domain is the…
Geometric characterizations for conformal mappings in weighted Bergman spaces
- Mathematics
- 2021
We prove that a conformal mapping defined on the unit disk belongs to a weighted Bergman space if and only if certain integrals involving the harmonic measure converge. With the aid of this theorem,…
On the Hardy number of comb domains
- MathematicsAnnales Fennici Mathematici
- 2022
Let \({H^p}\left( \mathbb{D} \right)\) be the Hardy space of all holomorphic functions on the unit disk \(\mathbb{D}\) with exponent \(p>0\). If \(D\ne \mathbb{C}\) is a simply connected domain and…
On the Hardy number of a domain in terms of harmonic measure and hyperbolic distance
- Mathematics
- 2019
Let $\psi $ be a conformal map on $\mathbb{D}$ with $ \psi \left( 0 \right)=0$ and let ${F_\alpha }=\left\{ {z \in \mathbb{D}:\left| {\psi \left( z \right)} \right| = \alpha } \right\}$ for $\alpha…
On a Property of Harmonic Measure on Simply Connected Domains
- MathematicsCanadian Journal of Mathematics
- 2019
Abstract Let $D\subset \mathbb{C}$ be a domain with $0\in D$. For $R>0$, let $\widehat{\unicode[STIX]{x1D714}}_{D}(R)$ denote the harmonic measure of $D\cap \{|z|=R\}$ at $0$ with respect to the…
References
SHOWING 1-10 OF 21 REFERENCES
THE HARDY CLASS OF A FUNCTION WITH SLOWLY-GROWING AREA
- Mathematics
- 1974
In this paper we show that if / i s analytic on the open unit disk and if the area of Li|z| s /?} n image of /) grows sufficiently slowly as a function of R, then / belongs to the Hardy class H tot…
On the degenerate Beltrami equation
- Mathematics
- 2004
We study the well-known Beltrami equation under the assumption that its measurable complex-valued coefficient μ(z) has the norm ∥μ∥∞ = 1. Sufficient conditions for the existence of a homeomorphic…
Lectures on quasiconformal mappings
- Mathematics
- 1966
The Ahlfors Lectures: Acknowledgments Differentiable quasiconformal mappings The general definition Extremal geometric properties Boundary correspondence The mapping theorem Teichmuller spaces…
The Hardy Class of Geometric Models and the Essential Spectral Radius of Composition Operators
- Mathematics
- 1997
Letφbe an analytic map of the disk into itself (that fixes the origin). Then, it is well known thatφinduces a bounded composition operatorCφon the Hardy spaceH2(D). Also, by a classical result of…
Mean growth of Koenigs eigenfunctions
- Mathematics
- 1997
In 1884, G. Koenigs solved Schroeder's functional equation f o a = Af in the following context: ( is a given holomorphic function mapping the open unit disk U into itself and fixing a point a E U, f…
The Hardy class of a spiral-like function.
- Mathematics, Philosophy
- 1971
A determination is made of the Hardy classes to which a spiral-like univalent function and its derivative belong. An estimate for the size of the Taylor coefficients is deduced. Let/(z) be analytic…
Classical Potential Theory
- Mathematics
- 2000
1. Harmonic Functions.- 1.1. Laplace's equation.- 1.2. The mean value property.- 1.3. The Poisson integral for a ball.- 1.4. Harnack's inequalities.- 1.5. Families of harmonic functions: convergence…
Classical potential theory and its probabilistic counterpart
- Mathematics
- 1984
I Introduction to the Mathematical Background of Classical Potential Theory.- II Basic Properties of Harmonic, Subharmonic, and Superharmonic Functions.- III Infima of Families of Superharmonic…