Results 11 to 16 of about 16 (16)

Hausdorff measure of the singular set of quasiregular maps on Carnot groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 35, Page 2203-2220, 2003., 2003
Recently, the theory of quasiregular mappings on Carnot groups has been developed intensively. Let ν stand for the homogeneous dimension of a Carnot group and let m be the index of the last vector space of the corresponding Lie algebra. We prove that the (ν − m − 1)‐dimensional Hausdorff measure of the image of the branch set of a quasiregular mapping ...
Irina Markina
wiley   +1 more source

The Apollonian metric: limits of the comparison and bilipschitz properties

open access: yesAbstract and Applied Analysis, Volume 2003, Issue 20, Page 1141-1158, 2003., 2003
The Apollonian metric is a generalization of the hyperbolic metric. It is defined in arbitrary domains in ℝn. In this paper, we derive optimal comparison results between this metric and the jG metric in a large class of domains. These results allow us to prove that Euclidean bilipschitz mappings have small Apollonian bilipschitz constants in a domain G
Peter A. Hästö
wiley   +1 more source

Ar (λ)‐weighted Caccioppoli‐type and Poincaré‐type inequalities for A‐harmonic tensors

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 31, Issue 2, Page 115-122, 2002., 2002
We prove a local version of weighted Caccioppoli‐type inequality, then we prove a version of weighted Poincaré‐type inequality for A‐harmonic tensors both locally and globally. Ar(λ)-weighted Caccioppoli-type and Poincaré-type inequalities for A-harmonic tensors (erratum)dx.doi.org/10.1155 ...
Bing Liu
wiley   +1 more source

Generalized John disks

open access: yesOpen Mathematics, 2014
Guo Chang-Yu, Koskela Pekka
doaj   +1 more source

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