Geodesic
A new approach to solving a quasilinear boundary value problem with $p$-Laplacian using optimization
Applications of Mathematics, Tome 68 (2023) no. 4, pp. 425-439.

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We present a novel approach to solving a specific type of quasilinear boundary value problem with $p$-Laplacian that can be considered an alternative to the classic approach based on the mountain pass theorem. We introduce a new way of proving the existence of nontrivial weak solutions. We show that the nontrivial solutions of the problem are related to critical points of a certain functional different from the energy functional, and some solutions correspond to its minimum. This idea is new even for $p=2$. We present an algorithm based on the introduced theory and apply it to the given problem. The algorithm is illustrated by numerical experiments and compared with the classic approach.
DOI : 10.21136/AM.2023.0194-22
Classification : 35B38, 35J92, 65N30
Keywords: $p$-Laplacian operator; quasilinear elliptic PDE; critical point and value; optimization algorithm; gradient method 
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Bailová, Michaela; Bouchala, Jiří. A new approach to solving a quasilinear boundary value problem with $p$-Laplacian using optimization. Applications of Mathematics, Tome 68 (2023) no. 4, pp. 425-439. doi : 10.21136/AM.2023.0194-22. http://geodesic.mathdoc.fr/articles/10.21136/AM.2023.0194-22/

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