Journal
APPLIED MATHEMATICS LETTERS
Volume 118, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.aml.2021.107138
Keywords
1-Laplacian problem; Radial solution; Mountain pass theorem; Symmetric criticality principle of; Palais
Categories
Funding
- NSFC [11671364, 12071438]
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This paper discusses the existence of a radial solution to a 1-Laplacian problem and proves the existence of a solution in the space of functions of bounded variation BV (R-N). The proof relies on a version of mountain pass theorem and the symmetric criticality principle.
We obtain the existence of a radial solution to the following 1-Laplacian problem {-Delta(1)u + u vertical bar u vertical bar = Q(x)f(u), in R-N, (0.1) u is an element of BV (R-N). The work is carried out in the space of functions of bounded variation BV (R-N). The proof of the main result relies on a version of mountain pass theorem without Palais-Smale condition to Lipschitz continuous functionals, and symmetric criticality principle of Palais for non-smooth functionals . (C) 2021 Elsevier Ltd. All rights reserved.
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