On the equicontinuity of unclosed Orlicz-Sobolev classes by prime ends

  • Z. O. Kovba Zhytomyr Ivan Franko State University Zhytomyr, Ukraine
  • E. O. Sevost'yanov Zhytomyr Ivan Franko State University Zhytomyr, Ukraine; Institute of Applied Mathematics and Mechanics of NAS of Ukraine Sloviansk, Ukraine https://orcid.org/0000-0001-7892-6186
Keywords: equicontinuity, boundary behavior, Orlicz-Sobolev classes, continuous boundary extension

Abstract

We study the equicontinuity of Orlicz-Sobolev classes by prime ends.
We investigate the case when the mappings are open, discrete, but
not boundary preserving (closed). It is established that, under
certain conditions on the cluster set, the family of above mappings
is equicontinuous in the terms of prime ends whenever the
corresponding Orlicz function satisfies the Calderon condition, and
the inner dilatation of mappings has a majorant satisfying the
integral divergence Lehto-Dini condition in the closure of a domain.
A similar result was also obtained in the case where the
corresponding majorant has a finite mean oscillation (FMO) at each
point of the closure of a domain.

Author Biographies

Z. O. Kovba, Zhytomyr Ivan Franko State University Zhytomyr, Ukraine

Zhytomyr Ivan Franko State University Zhytomyr, Ukraine

E. O. Sevost'yanov, Zhytomyr Ivan Franko State University Zhytomyr, Ukraine; Institute of Applied Mathematics and Mechanics of NAS of Ukraine Sloviansk, Ukraine

Zhytomyr Ivan Franko State University Zhytomyr, Ukraine; Institute of Applied Mathematics and Mechanics of NAS of Ukraine Sloviansk, Ukraine

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Published
2026-09-22
How to Cite
Kovba, Z. O., & Sevost’yanov, E. O. (2026). On the equicontinuity of unclosed Orlicz-Sobolev classes by prime ends. Matematychni Studii, 66(1), 113-116. https://doi.org/10.30970/ms.66.1.113-116
Section
Research Announcements