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Related papers: The Green's function and the Ahlfors map

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We show that the classical kernel and domain functions associated to an n-connected domain in the plane are all given by rational combinations of three or fewer holomorphic functions of one complex variable. We characterize those domains…

Complex Variables · Mathematics 2007-05-23 Steven R. Bell

We prove that the Bergman kernel function associated to a finitely connected domain in the plane is given as a rational combination of only three basic functions of one complex variable: an Alhfors map, its derivative, and one other…

Complex Variables · Mathematics 2007-05-23 Steven R. Bell

We study several quantities associated to the Green's function of a multiply connected domain in the complex plane. Among them are some intrinsic properties such as geodesics, curvature, and $L^2$-cohomology of the capacity metric and…

Complex Variables · Mathematics 2016-05-17 Diganta Borah , Pranav Haridas , Kaushal Verma

We show how to express a conformal map of a general two connected domain in the plane such that neither boundary component is a point to a representative domain which has the virtue of having an explicit algebraic Bergman kernel function.…

Complex Variables · Mathematics 2008-01-16 Steven R. Bell , Ersin Deger , Thomas Tegtmeyer

The so called Ahlfors function is the solution to an extremal problem. In this thesis, we study several properties of this function in a most general domain Omega. We consider the Ahlfors function in the context of analytic capacity, and…

Complex Variables · Mathematics 2021-06-30 Anna-Mariya Otsetova

It is proved that the family of Ahlfors extremal mappings of a multiply connected region in the plane onto the unit disc can be expressed as a rational combination of two fixed Ahlfors mappings in much the same way that the family of…

Complex Variables · Mathematics 2007-05-23 Steven R. Bell

We consider in the plane the problem of reconstructing a domain from the normal derivative of its Green's function with pole at a fixed point in the domain. By means of the theory of conformal mappings, we obtain existence, uniqueness,…

Analysis of PDEs · Mathematics 2009-12-11 Virginia Agostiniani , Rolando Magnanini

Using Ahlfors functions, Grunsky maps and the Bell representation theorem, we show that a certain subset of the rational maps of degree $n$ forms a trivial bundle over the moduli space of non-degenerate $n$-connected domains with one marked…

Complex Variables · Mathematics 2013-09-12 Maxime Fortier Bourque , Malik Younsi

In this paper we prove the basic facts for pluricomplex Green functions on manifolds. The main goal is to establish properties of complex manifolds that make them analogous to relatively compact or hyperconvex domains in Stein manifolds.…

Complex Variables · Mathematics 2020-04-01 Evgeny A. Poletsky

We study questions related to critical points of the Green's function of a bounded multiply connected domain in the complex plane. The motion of critical points, their limiting positions as the pole approaches the boundary and the…

Complex Variables · Mathematics 2009-12-08 Björn Gustafsson , Ahmed Sebbar

Given a sequence of regular planar domains converging in the sense of kernel, we prove that the corresponding Green's functions converge uniformly on the complex sphere, provided the limit domain is also regular, and the connectivity is…

Complex Variables · Mathematics 2019-02-19 Sergei Kalmykov , Leonid V. Kovalev

We prove a version of the Schwarz lemma for holomorphic mappings from the unit disk into the symmetric product of a Riemann surface. Our proof is function-theoretic and self-contained. The main novelty in our proof is the use of the…

Complex Variables · Mathematics 2019-09-10 Jaikrishnan Janardhanan

We show that the Bergman, Szego, and Poisson kernels associated to a finitely connected domain in the plane are all composed of finitely many easily computed functions of one variable. The new formulas give rise to new methods for computing…

Complex Variables · Mathematics 2008-02-03 Steven R. Bell

Using an explicit version of the Mumford isomorphism on the moduli space of hyperelliptic curves we derive a closed formula for the Arakelov-Green function of a hyperelliptic Riemann surface evaluated at its Weierstrass points.

Algebraic Geometry · Mathematics 2012-05-04 Robin de Jong

Homogeneous and inhomogeneous biharmonic equation are considered on the $n$-dimensional unit sphere. The Green function is given as a series of Gegenbauer polynomials. In the paper, explicit representations of the Green function are found…

Analysis of PDEs · Mathematics 2025-07-08 Ilona Iglewska-Nowak

It has been known for some time that the Green's function of a planar domain can be defined in terms of the exit time of Brownian motion, and this definition has been extended to stopping times more general than exit times. In this paper,…

Probability · Mathematics 2017-01-25 Greg Markowsky

We study existence and uniqueness of Green functions for the Cheeger $Q$-Laplacian in metric measure spaces that are Ahlfors $Q$-regular and support a $Q$-Poincar\'e inequality with $Q>1$. We prove uniqueness of Green functions both in the…

Analysis of PDEs · Mathematics 2024-04-22 Mario Bonk , Luca Capogna , Xiaodan Zhou

We develop Green's function formalism to describe continuous multi-layered quasi-one-dimensional setups described by piece-wise constant single-particle Hamiltonians. The Hamiltonians of the individual layers are assumed to be quadratic…

Mesoscale and Nanoscale Physics · Physics 2023-11-28 Kiryl Piasotski , Mikhail Pletyukhov , Alexander Shnirman

The result is established for a Jordan measurable region with rectifiable boundary. The integrand F for the new plane integral to be used is a function of axis-parallel rectangles, finitely additive on non-overlapping ones, hence…

Classical Analysis and ODEs · Mathematics 2007-05-23 I. Fleischer

Green's functions are highly useful in analyzing the dynamical behavior of polynomials in their escaping set. The aim of this paper is to construct an analogue of Green's functions for planar quasiregular mappings of degree two and constant…

Dynamical Systems · Mathematics 2024-08-22 Mark Broderius , Alastair Fletcher
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