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St. Petersburg Mathematical Journal

This journal is a cover-to-cover translation into English of Algebra i Analiz, published six times a year by the mathematics section of the Russian Academy of Sciences.

ISSN 1547-7371 (online) ISSN 1061-0022 (print)

The 2024 MCQ for St. Petersburg Mathematical Journal is 0.68.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

Uniform convergence for problems with perforation along a given manifold and with a nonlinear Robin condition on the boundaries of cavities
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by D. I. Borisov and A. R. Mukhametrakhimova;
Translated by: S. V. Kislyakov
St. Petersburg Math. J. 35 (2024), 611-652
DOI: https://doi.org/10.1090/spmj/1819
Published electronically: October 4, 2024

Abstract:

A boundary value problem is treated for a second order elliptic equation with variable coefficients in a multidimensional domain perforated by small cavities closely spaced along a given manifold. The sizes of the cavities are assumed to be of the same smallness order, while their shapes and the distribution along the manifold are arbitrary. A nonlinear Robin condition is imposed on the boundaries of the cavities. It is proved that the solution of the perturbed problem converges to that of the homogenized problem in the $L_2$- and $W_2^1$-norms uniformly with respect to the $L_2$-norm of the right-hand side of the equation. Estimates of the convergence rates are also obtained.
References
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Bibliographic Information
  • D. I. Borisov
  • Affiliation: Institute of Mathematics with Computer Center of the Ufa Science Center of the Russian Academy of Sciences, ul. Chernyshevskogo 112, 450008 Ufa, Russia; and University of Hradec Králóve, Rokitanského, 62, 500 03, Hradec Králóve, Chech Republic; and Peoples Friendship University of Russia (RUDN University), ul. Miklukho-Maklaya 6, 117198 Moscow, Russia
  • Email: borisovdi@yandex.ru
  • A. R. Mukhametrakhimova
  • Affiliation: Akmulla Bashkir State Pedagogical University, ul. Oktyabr’skoi revolyutsii, 3a, 450000 Ufa, Russia
  • Email: albina8558@yandex.ru
  • Received by editor(s): February 7, 2022
  • Published electronically: October 4, 2024
  • Additional Notes: The research of A. I. Mukhametrakhimova was done under the support of Russian Science Foundation (grant no. 20-11-19995).
  • © Copyright 2024 American Mathematical Society
  • Journal: St. Petersburg Math. J. 35 (2024), 611-652
  • MSC (2020): Primary 35B27; Secondary 35J65, 35P05
  • DOI: https://doi.org/10.1090/spmj/1819