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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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Strong comparison principle for $p$-harmonic functions in Carnot-Caratheodory spaces
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by Luca Capogna and Xiaodan Zhou PDF
Proc. Amer. Math. Soc. 146 (2018), 4265-4274 Request permission

Abstract:

We extend Bony’s propagation of support argument to $C^1$ solutions of the nonhomogeneous subelliptic $p$-Laplacian associated to a system of smooth vector fields satisfying Hörmander’s finite rank condition. As a consequence we prove a strong maximum principle and strong comparison principle that generalize results of Tolksdorf.
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Additional Information
  • Luca Capogna
  • Affiliation: Department of Mathematical Sciences, Worcester Polytechnic Institute, Worcester, Massachusetts 01609
  • MR Author ID: 336615
  • Email: lcapogna@wpi.edu
  • Xiaodan Zhou
  • Affiliation: Department of Mathematical Sciences, Worcester Polytechnic Institute, Worcester, Massachusetts 01609
  • MR Author ID: 1150978
  • Email: xzhou3@wpi.edu
  • Received by editor(s): July 19, 2017
  • Received by editor(s) in revised form: December 11, 2017
  • Published electronically: July 13, 2018
  • Additional Notes: The first author was partially funded by NSF awards DMS 1449143 and DMS 1503683.
    The second author was partially funded by an AMS–Simons Travel Grant
  • Communicated by: Jeremy Tyson
  • © Copyright 2018 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 146 (2018), 4265-4274
  • MSC (2010): Primary 35H20, 35B50
  • DOI: https://doi.org/10.1090/proc/14113
  • MathSciNet review: 3834656