Ball exhaustion of the Reinhardt domain: properties of analytic functions of bounded $\mathbf{L}$-index in joint variables

  • A. I. Bandura Ivano-Frankivsk National Tecnical University of OIl and Gas
  • L. I. Kryshtopa Ivano-Frankivsk National Technical University of Oil and Gas Ivano-Frankivsk, Ukraine
  • L. M. Shehda Ivano-Frankivsk National Technical University of Oil and Gas Ivano-Frankivsk, Ukraine
Keywords: analytic function, bounded L-index in joint variables, Reinhardt domain, maximum modulus, boundedness criterion, function of several complex variables

Abstract

This article is a continuation of the research on the concept of an analytic function of a bounded $\mathbf{L}$-index, conducted during 2019-2025 in the articles
A. Bandura, T. Salo and O. Skaskiv, in which the construction of a complete and exhaustive theory of analytic functions of a bounded $\mathbf{L}$-index in joint variables in an arbitrary complete Reinhardt domain was successfully started. In this article, the criterion for the boundedness of the $\mathbf{L}$-index of a function analytic in a Reinhardt domain in terms of its maximum modulus on balls with an arbitrary center and an arbitrary radius is proved.

Author Biographies

A. I. Bandura, Ivano-Frankivsk National Tecnical University of OIl and Gas

Ivano-Frankivsk National Tecnical University of OIl and Gas

L. I. Kryshtopa, Ivano-Frankivsk National Technical University of Oil and Gas Ivano-Frankivsk, Ukraine

Ivano-Frankivsk National Technical University of Oil and Gas
Ivano-Frankivsk, Ukraine

L. M. Shehda, Ivano-Frankivsk National Technical University of Oil and Gas Ivano-Frankivsk, Ukraine

Ivano-Frankivsk National Technical University of Oil and Gas
Ivano-Frankivsk, Ukraine

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Published
2026-03-25
How to Cite
Bandura, A. I., Kryshtopa, L. I., & Shehda, L. M. (2026). Ball exhaustion of the Reinhardt domain: properties of analytic functions of bounded $\mathbf{L}$-index in joint variables. Matematychni Studii, 65(1), 22-29. https://doi.org/10.30970/ms.65.1.22-29
Section
Articles