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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 2020 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.

 

On conformal spectral gap estimates of the Dirichlet–Laplacian
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by V. Gol′dshtein, V. Pchelintsev and A. Ukhlov
St. Petersburg Math. J. 31 (2020), 325-335
DOI: https://doi.org/10.1090/spmj/1599
Published electronically: February 4, 2020

Abstract:

We study spectral stability estimates of the Dirichlet eigenvalues of the Laplacian in nonconvex domains $\Omega \subset \mathbb {R}^2$. With the help of these estimates, we obtain asymptotically sharp inequalities of ratios of eigenvalues in the framework of the Payne–Pólya–Weinberger inequalities. These estimates are equivalent to spectral gap estimates of the Dirichlet eigenvalues of the Laplacian in nonconvex domains in terms of conformal (hyperbolic) geometry.
References
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Bibliographic Information
  • V. Gol′dshtein
  • Affiliation: Department of Mathematics, Ben-Gurion University of the Negev, P.O.Box 653, 8410501, Beer Sheva, Israel
  • MR Author ID: 197069
  • Email: vladimir@math.bgu.ac.il
  • V. Pchelintsev
  • Affiliation: Division of Mathematics and Informatics, Tomsk Polytechnic University, Lenin pr. 30, 634050, Tomsk, Russia; and International Laboratory SSP & QF, Tomsk State University, Lenin pr. 36, 634050, Tomsk, Russia
  • Address at time of publication: Department of Mathematics, Ben-Gurion University of the Negev, P.O. Box 653, 8410501, Beer Sheva, Israel
  • MR Author ID: 1018625
  • Email: vpchelintsev@vtomske.ru
  • A. Ukhlov
  • Affiliation: Department of Mathematics, Ben-Gurion University of the Negev, P.O. Box 653, 8410501, Beer Sheva, Israel
  • MR Author ID: 336276
  • Email: ukhlov@math.bgu.ac.il
  • Received by editor(s): October 10, 2018
  • Published electronically: February 4, 2020
  • Additional Notes: The first author was supported by the United States–Israel Binational Science Foundation (BSF Grant no. 2014055).
    The second author was partially supported by the Ministry of Education and Science of the Russian Federation in the framework of the research Project no. 2.3208.2017/4.6, by RFBR Grant no. 18-31-00011.

  • Dedicated: Dedicated to V. Maz’ya on the occasion of his 80th birthday
  • © Copyright 2020 American Mathematical Society
  • Journal: St. Petersburg Math. J. 31 (2020), 325-335
  • MSC (2010): Primary 35P15; Secondary 46E35, 30C65
  • DOI: https://doi.org/10.1090/spmj/1599
  • MathSciNet review: 3937503