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相关论文: On mappings with the inverse Poletsky inequality o…

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The paper is devoted to the study of the boundary behavior of mappings. We consider mappings that satisfy inverse moduli inequalities of Poletskii type, under which the images of the domain under the mappings may change. It is proved that a…

复变函数 · 数学 2026-05-21 Zarina Kovba , Evgeny Sevost'yanov

For mapping with branching points that satisfy the inverse inequality of Poletsky, we obtained the results of their continuous boundary extension in terms of prime ends. Under certain conditions, the specified classes od mappings are also…

复变函数 · 数学 2020-04-13 E. A. Sevost'yanov

We have studied the local and boundary behavior of mappings satisfying one estimate of the distortion of the modulus of families of paths. In particular, we have obtained conditions under which the families of the indicated mappings are…

经典分析与常微分方程 · 数学 2019-04-03 E. A. Sevost'yanov , S. O. Skvortsov , O. P. Dovhopiatyi

The paper is devoted to the study of mappings with finite distortion, actively studied recently. For mappings whose inverse satisfy the Poletsky inequality, the results on boundary behavior in terms of prime ends are obtained. In…

复变函数 · 数学 2019-01-15 E. A. Sevost'yanov , S. A. Skvortsov , N. S. Ilkevych

We study mappings defined in the domain of a metric space that distort the modulus of families of paths by the type of the inverse Poletskii inequality. Under certain conditions, it is proved that such mappings have a continuous extension…

复变函数 · 数学 2021-07-19 Evgeny Sevost'yanov

The article is devoted to the study of mappings that distort the modulus of families of paths by the Poletsky inequality type. At boundary points of a domain, we have obtained the H\"{o}lder inequality for such mappings, provided that their…

复变函数 · 数学 2023-05-19 Evgeny Sevost'yanov

We study mappings that satisfy the inverse Poletsky inequality in a domain of the Euclidean space. Under certain conditions on the definition and mapped domains, it is established that they have a continuous extension to the boundary in…

复变函数 · 数学 2022-11-10 Evgeny Sevost'yanov

The manuscript is devoted to the boundary behavior of mappings with bounded and finite distortion. We consider mappings of domains of the Euclidean space that satisfy weighted Poletsky inequality. Assume that, the definition domain is…

复变函数 · 数学 2024-04-08 Victoria Desyatka , Evgeny Sevost'yanov

The article is devoted to the study of mappings that satisfy the so-called inverse Poletsky inequality. We consider mappings of quasiextremal distance domains, domains with a locally quasiconformal boundary, and domains which are regular in…

复变函数 · 数学 2023-10-03 M. V. Androschuk , O. P. Dovhopiatyi , N. S. Ilkevych , E. A. Sevost'yanov

We consider mappings that distort the modulus of families of paths in the opposite direction in the manner of Poletsky's inequality. Here we study the case when the mappings are not closed, in particular, they do not preserve the boundary…

复变函数 · 数学 2024-09-06 Evgeny Sevost'yanov , Victoria Desyatka Zarina Kovba

We investigate non-homeomorphic mappings of Riemannian surfaces of Sobolev class. We have obtained some estimates of distortion of moduli of families of curves. We have proved that, under some conditions, these mappings have a continuous…

We have studied the mappings that satisfy the Poletsky-type inverse inequality in the domain of the Euclidean space. It is proved that the uniform boundary of the family of such mappings is a discrete mapping. We separately considered…

复变函数 · 数学 2024-04-29 E. O. Sevost'yanov , V. A. Targonskii

It is established a continuous boundary extension of some class of mappings. Under some additional conditions, we have established that this extension is light in the closure of the definition domain. Under some stronger conditions, we also…

复变函数 · 数学 2022-11-08 Evgeny Sevost'yanov

In the present paper, we investigate non-homeomorphic mappings of Riemannian surfaces of Sobolev class. We have obtained some estimates of distortion of moduli of families of curves. As consequence, we have obtained results about the…

复变函数 · 数学 2021-04-20 E. A. Sevost'yanov

We consider open discrete mappings of Riemannian manifolds that satisfy some modulus inequality. We investigate the possibility of a continuous extension of such mappings to an isolated point on the boundary. It is proved that, these…

复变函数 · 数学 2023-09-28 V. S. Desyatka , E. A. Sevost'yanov

In this paper, we obtain upper estimates for the distortion of the modulus of families of paths under mappings of the Sobolev class, whose dilatation is locally integrable. As a consequence, theorems on the local and boundary behavior of…

复变函数 · 数学 2019-04-18 E. Sevost'yanov

We study generalized quasiconformal mappings in the context of the inverse Poletsky inequality. We consider the local behavior and the boundary behavior of mappings with the inverse Poletsky inequality. In particular, we obtain logarithmic…

复变函数 · 数学 2023-06-06 Vladimir Gol'dshtein , Evgeny Sevost'yanov , Alexander Ukhlov

The manuscript is devoted to the boundary behavior of mappings with bounded and finite distortion, which has been actively studied recently. We consider mappings of domains of the Euclidean space that satisfy the inverse Poletsky inequality…

复变函数 · 数学 2026-04-14 Victoria Desyatka , Evgeny Sevost'yanov

A boundary behavior of ring mappings on Riemannian manifolds, which are generalization of quasiconformal mappings by Gehring, is investigated. In terms of prime ends, there are obtained theorems about continuous extension to a boundary of…

复变函数 · 数学 2017-05-22 D. P. Ilyutko , E. A. Sevost'yanov

For some class of mappings, there are investigated problems connected with a possibility of continuous extension to a boundary on Riemannian manifolds. In particular, for so-called ring mappings, there is proved a result related to…

复变函数 · 数学 2015-12-16 D. P. Ilyutko , E. A. Sevost'yanov
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