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 the first eigenvalue of Liouville-type problems
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by Daniele Bartolucci, Paolo Cosentino, Aleks Jevnikar and Chang-Shou Lin;
Proc. Amer. Math. Soc. 153 (2025), 1641-1655
DOI: https://doi.org/10.1090/proc/17167
Published electronically: February 14, 2025

Abstract:

The aim of this note is to study the spectrum of a linearized Liouville-type problem, characterizing the case in which the first eigenvalue is zero. Interestingly enough, we obtain also point-wise information on the associated first eigenfunction. To this end, we refine the Alexandrov-Bol inequality suitable for our problem and characterize its equality case.
References
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Bibliographic Information
  • Daniele Bartolucci
  • Affiliation: Department of Mathematics, University of Rome “Tor Vergata” Via della ricerca scientifica n. 1, 00133 Roma, Italy
  • MR Author ID: 699143
  • Email: bartoluc@mat.uniroma2.it
  • Paolo Cosentino
  • Affiliation: Department of Mathematics, University of Rome “Tor Vergata”, Via della ricerca scientifica n. 1, 00133 Roma, Italy
  • Email: cosentino@mat.uniroma2.it
  • Aleks Jevnikar
  • Affiliation: Department of Mathematics, Computer Science and Physics, University of Udine, Via delle Scienze 206, 33100 Udine, Italy
  • MR Author ID: 1037775
  • ORCID: 0000-0002-6912-4760
  • Email: aleks.jevnikar@uniud.it
  • Chang-Shou Lin
  • Affiliation: Department of Mathematics, National Taiwan University, No. 1, Section 4, Roosevelt Rd, Da’an District, 10617 Taipei City, Taiwan
  • MR Author ID: 201592
  • Email: cslin@math.ntu.edu.tw
  • Received by editor(s): June 19, 2023
  • Received by editor(s) in revised form: September 24, 2024
  • Published electronically: February 14, 2025
  • Additional Notes: The first author was supported by PRIN project 2022, ERC PE1_11 “Variational and Analytical aspects of Geometric PDEs”; the first and second authors were partially supported by the MIUR Excellence Department Project MatMod@TOV awarded to the Department of Mathematics, University of Rome Tor Vergata, CUP E83C23000330006; The first, second, and third authors are members of the INDAM Research Group “Gruppo Nazionale per l’Analisi Matematica, la Probabilità e le loro Applicazioni”; the second author was partially supported by INdAM-GNAMPA Project “Mancanza di regolarità e spazi non lisci: studio di autofunzioni e autovalori”, CUP E53C23001670001; the third author was partially supported by INdAM-GNAMPA project “Analisi qualitativa di problemi differenziali non lineari” and PRIN Project 20227HX33Z “Pattern formation in nonlinear phenomena”
  • Communicated by: Ryan Hynd
  • © Copyright 2025 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 153 (2025), 1641-1655
  • MSC (2020): Primary 35J61, 35A23, 35P15
  • DOI: https://doi.org/10.1090/proc/17167