Results 31 to 40 of about 11,431,351 (352)

Certain convex harmonic functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We define and investigate a family of complex-valued harmonic convex univalent functions related to uniformly convex analytic functions. We obtain coefficient bounds, extreme points, distortion theorems, convolution and convex combinations for this ...
Yong Chan Kim   +2 more
doaj   +1 more source

An extremal harmonic function [PDF]

open access: yesProceedings of the American Mathematical Society, 1969
surface 3x=h-'(X) and D(u; X) for the Dirichlet integral over the region ix bounded by a and fi. The main result of this paper is the inequality: maxhJ|Qx=m(h; X)=D(h; X)
openaire   +1 more source

On the asymptotic mean value property for planar p-harmonic functions [PDF]

open access: yes, 2015
We show that p-harmonic functions in the plane satisfy a nonlinear asymptotic mean value property for p>1. This extends previous results of Manfredi and Lindqvist for certain range of p's.
Ángel Arroyo, J. G. Llorente
semanticscholar   +1 more source

New Discrete Basis for Nuclear Structure Studies [PDF]

open access: yes, 1998
A complete discrete set of spherical single-particle wave functions for studies of weakly-bound many-body systems is proposed. The new basis is obtained by means of a local-scale point transformation of the spherical harmonic oscillator wave functions ...
A. K. Kerman   +48 more
core   +2 more sources

Directional Convexity of Convolutions of Harmonic Functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2019
Harmonic functions can be constructed using two analytic functions acting as their analytic and coanalytic parts but the prediction of the behavior of convolution of harmonic functions, unlike the convolution of analytic functions, proved to be ...
Jay M. Jahangiri, Raj Kumar Garg
doaj   +1 more source

Polynomials and harmonic functions on discrete groups [PDF]

open access: yes, 2015
Alexopoulos proved that on a finitely generated virtually nilpotent group, the restriction of a harmonic function of polynomial growth to a torsion-free nilpotent subgroup of finite index is always a polynomial in the Mal'cev coordinates of that subgroup.
Tom Meyerovitch   +3 more
semanticscholar   +1 more source

A variant of Jensen-type inequality and related results for harmonic convex functions

open access: yesAIMS Mathematics, 2020
In this article, we present a variant of discrete Jensen-type inequality for harmonic convex functions and establish a Jensen-type inequality for harmonic h-convex functions. Furthermore, we found a variant of Jensen-type inequality for harmonic h-convex
Imran Abbas Baloch   +4 more
doaj   +1 more source

Modeling the electrostatic field of a charged ring located inside an infinite cylinder in the presence of a torus

open access: yesInformatika, 2023
Objectives. Analytical solution of the boundary value problem of electrostatics for modeling the electrostatic field of a charged ring located inside a grounded infinite circular cylinder in the presence of a perfectly conducting torus is considered. The
G. Ch. Shushkevich
doaj   +1 more source

A Fatou theorem for $F$-harmonic functions

open access: yes, 2016
In this paper we study a class of functions that appear naturally in some equidistribution problems and that we call $F$-harmonic. These are functions of the universal cover of a closed and negatively curved which possess an integral representation ...
Alvarez, Sébastien
core   +1 more source

All functions are locally $s$-harmonic up to a small error [PDF]

open access: yes, 2014
We show that we can approximate every function $f\in C^{k}(\bar{B_1})$ with a $s$-harmonic function in $B_1$ that vanishes outside a compact set. That is, $s$-harmonic functions are dense in $C^{k}_{\rm{loc}}$.
Dipierro, Serena   +2 more
core   +4 more sources

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