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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 2024 MCQ for Proceedings of the American Mathematical Society is 0.85.

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On static manifolds satisfying an overdetermined Robin type condition on the boundary
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by Tiarlos Cruz and Ivaldo Nunes;
Proc. Amer. Math. Soc. 151 (2023), 4971-4982
DOI: https://doi.org/10.1090/proc/16497
Published electronically: July 3, 2023

Abstract:

In this work, we consider static manifolds $M$ with nonempty boundary $\partial M$. In this case, we suppose that the potential $V$ also satisfies an overdetermined Robin type condition on $\partial M$. We prove a rigidity theorem for the Euclidean closed unit ball $B^3$ in $\mathbb {R}^3$. More precisely, we give a sharp upper bound for the area of the zero set $\Sigma =V^{-1}(0)$ of the potential $V$, when $\Sigma$ is connected and intersects $\partial M$. We also consider the case where $\Sigma =V^{-1}(0)$ does not intersect $\partial M$.
References
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Bibliographic Information
  • Tiarlos Cruz
  • Affiliation: Universidade Federal de Alagoas, Instituto de Matemática, Maceió, Alagoas 57072-970, Brazil
  • MR Author ID: 1095786
  • ORCID: 0000-0002-6682-9474
  • Email: cicero.cruz@im.ufal.br
  • Ivaldo Nunes
  • Affiliation: Departamento de Matemática, Universidade Federal do Maranhão, São Luís, Maranhão 65080 - 805, Brazil
  • MR Author ID: 1019640
  • Email: ivaldo.nunes@ufma.br
  • Received by editor(s): December 29, 2022
  • Received by editor(s) in revised form: March 14, 2023
  • Published electronically: July 3, 2023
  • Additional Notes: The first author was supported in part by CNPq/Brazil grant 311803/2019-9.
    The first and second authors were supported by the ICTP through the Associates Programme (2018-2023 and 2019-2024, respectively). The authors were partially supported by the Brazilian National Council for Scientific and Technological Development (CNPq Grant 405468/2021-0).
  • Communicated by: Jiaping Wang
  • © Copyright 2023 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 151 (2023), 4971-4982
  • MSC (2020): Primary 53C21, 35Q75; Secondary 53C24
  • DOI: https://doi.org/10.1090/proc/16497
  • MathSciNet review: 4634898