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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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A decay estimate for the eigenvalues of the Neumann-Poincaré operator using the Grunsky coefficients
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by YoungHoon Jung and Mikyoung Lim PDF
Proc. Amer. Math. Soc. 148 (2020), 591-600 Request permission

Abstract:

We consider the decay property of the eigenvalues of the Neumann-Poincaré operator in two dimensions. As is well known, this operator admits only a sequence of eigenvalues that accumulates to zero as its spectrum for a bounded domain having $C^{1,\alpha }$ boundary with $\alpha \in (0,1)$. We show that the eigenvalues $\lambda _k$ of the Neumann-Poincaré operator ordered by size satisfy that $|\lambda _k| = O(k^{-p-\alpha +1/2})$ for an arbitrary simply connected domain having $C^{1+p,\alpha }$ boundary with $p\geq 0,~ \alpha \in (0,1)$, and $p+\alpha >\frac {1}{2}$.
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Additional Information
  • YoungHoon Jung
  • Affiliation: Department of Mathematical Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
  • MR Author ID: 1224562
  • ORCID: 0000-0003-4451-9173
  • Email: hapy1010@kaist.ac.kr
  • Mikyoung Lim
  • Affiliation: Department of Mathematical Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
  • MR Author ID: 689036
  • Email: mklim@kaist.ac.kr
  • Received by editor(s): February 13, 2019
  • Published electronically: October 18, 2019
  • Additional Notes: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government(MSIT) (No. 2016R1A2B4014530 and No. 2019R1F1A1062782)
    The second author is the corresponding author
  • Communicated by: Ariel Barton
  • © Copyright 2019 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 148 (2020), 591-600
  • MSC (2010): Primary 35J05, 30C35, 35P15
  • DOI: https://doi.org/10.1090/proc/14785
  • MathSciNet review: 4052197