Results 21 to 30 of about 1,270,291 (205)

Counting and boundary limit theorems for representations of Gromov‐hyperbolic groups

open access: yesProceedings of the London Mathematical Society, Volume 127, Issue 3, Page 589-652, September 2023., 2023
Abstract Given a Gromov‐hyperbolic group G$G$ endowed with a finite symmetric generating set, we study the statistics of counting measures on the spheres of the associated Cayley graph under linear representations of G$G$. More generally, we obtain a weak law of large numbers for subadditive functions, echoing the classical Fekete lemma.
Stephen Cantrell, Cagri Sert
wiley   +1 more source

APPLIED QUASIPOTENTIAL METHOD FOR SOLVING THE COEFFICIENT PROBLEMS OF PARAMETER IDENTIFICATION OF ANISOTROPIC MEDIA

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2019
A numerical method of quasiconformal mappings for solving the coefficient problems of finding eigenvalues of the conductivity tensor having information about its directions in an anisotropic medium using applied quasipotential tomographic data is ...
Andrii Bomba   +3 more
doaj   +1 more source

Fat Triangulations, Curvature and Quasiconformal Mappings

open access: yesAxioms, 2012
We  investigate  the interplay between  the existence  of  fat triangulations, P L approximations of Lipschitz–Killing curvatures and the existence of quasiconformal mappings.  In particular we prove that if there exists a quasiconformal  mapping between
Emil Saucan, Meir Katchalski
doaj   +1 more source

Doubly connected minimal surfaces and extremal harmonic mappings [PDF]

open access: yes, 2010
The concept of a conformal deformation has two natural extensions: quasiconformal and harmonic mappings. Both classes do not preserve the conformal type of the domain, however they cannot change it in an arbitrary way.
A. Lyzzaik   +38 more
core   +3 more sources

Quasiconformal mappings and Neumann eigenvalues of divergent elliptic operators [PDF]

open access: yesComplex Variables and Elliptic Equations, 2019
We study spectral properties of divergence form elliptic operators with the Neumann boundary condition in planar domains (including some fractal type domains) that satisfy to the quasihyperbolic boundary conditions.
V. Gol'dshtein   +2 more
semanticscholar   +1 more source

Pluriharmonic Mappings with the Convex Holomorphic Part

open access: yesJournal of Mathematics, 2022
In 2018, Partyka et al. established several equivalent conditions for a sense-preserving locally injective harmonic mapping f=h+g¯ in the unit disk D with convex holomorphic part h to be quasiconformal in terms of the relationships of two-point ...
Ma Lihua, See Keong Lee
doaj   +1 more source

Unique extremality [PDF]

open access: yes, 1998
Extremal mappings have been one of the main topics in the theory of quasiconformal mappings since its earliest days, when Grötzsch solved the extremal problem for two rectangles.
Božin, V.   +3 more
core   +1 more source

Quasiconformal Mappings and Grid Generation [PDF]

open access: yesSIAM Journal on Scientific and Statistical Computing, 1984
A finite difference scheme is developed for constructing quasiconformal mappings for arbitrary simply and doubly-connected domains onto a rectangle in the plane by using Beltrami systems. Error estimates are not given. Numerical examples show applications of the method: 1.
Mastin, C. W., Thompson, J. F.
openaire   +1 more source

Hyperbolically Bi-Lipschitz Continuity for -Harmonic Quasiconformal Mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2012
We study the class of -harmonic -quasiconformal mappings with angular ranges. After building a differential equation for the hyperbolic metric of an angular range, we obtain the sharp bounds of their hyperbolically partial derivatives, determined by the ...
Xingdi Chen
doaj   +1 more source

Identification of parameters of structure of soil curvilinear massifs by numerical methods of complex analysis

open access: yesГеофизический журнал, 2022
The works by specialists in electrical tomography usually model soil masses as a two-dimensional single-connected domain, the boundary of which consists of a horizon line and some «deep» line with a constant potential value on it.
A.Ya. Bomba   +2 more
doaj   +1 more source

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