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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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Double-phase problems and a discontinuity property of the spectrum
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by Nikolaos S. Papageorgiou, Vicenţiu D. Rădulescu and Dušan D. Repovš PDF
Proc. Amer. Math. Soc. 147 (2019), 2899-2910 Request permission

Abstract:

We consider a nonlinear eigenvalue problem driven by the sum of $p$ and $q$-Laplacians. We show that the problem has a continuous spectrum. Our result reveals a discontinuity property for the spectrum of a parametric ($p,q$)-differential operator as the parameter $\beta$ goes to $1^-$.
References
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Additional Information
  • Nikolaos S. Papageorgiou
  • Affiliation: Department of Mathematics, National Technical University, Zografou Campus, Athens 15780, Greece; Institute of Mathematics, Physics and Mechanics, 1000 Ljubljana, Slovenia
  • MR Author ID: 135890
  • Email: npapg@math.ntua.gr
  • Vicenţiu D. Rădulescu
  • Affiliation: Faculty of Applied Mathematics, AGH University of Science and Technology, 30-059 Kraków, Poland; Institute of Mathematics, Physics and Mechanics, 1000 Ljubljana, Slovenia; Institute of Mathematics “Simion Stoilow” of the Romanian Academy, P.O. Box 1-764, 014700 Bucharest, Romania
  • MR Author ID: 143765
  • ORCID: 0000-0003-4615-5537
  • Email: vicentiu.radulescu@imar.ro
  • Dušan D. Repovš
  • Affiliation: Faculty of Education and Faculty of Mathematics and Physics, University of Ljubljana; Institute of Mathematics, Physics and Mechanics, 1000 Ljubljana, Slovenia
  • MR Author ID: 147135
  • ORCID: 0000-0002-6643-1271
  • Email: dusan.repovs@guest.arnes.si
  • Received by editor(s): August 28, 2018
  • Published electronically: March 15, 2019
  • Additional Notes: This research was supported by the Slovenian Research Agency grants P1-0292, J1-8131, J1-7025, N1-0064, and N1-0083.
    The second author acknowledges the support through the Project MTM2017-85449-P of the DGISPI (Spain).
  • Communicated by: Catherine Sulem
  • © Copyright 2019 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 147 (2019), 2899-2910
  • MSC (2010): Primary 35D30; Secondary 35J60, 35P30
  • DOI: https://doi.org/10.1090/proc/14466
  • MathSciNet review: 3973893