Study of a mixed problem for a nonlinear elasticity system by topological degree

Authors

  • Fayrouz ZOUBAI Setif 1 University, Department of Mathematics, Applied Mathemathics Laboratory (LaMA), 19000, Algeria, e-mail: fayrouz.zoubai@univ-setif.dz
  • Boubakeur MEROUANI Setif 1 University, Department of Mathematics, Applied Mathemathics Laboratory (LaMA), 19000, Algeria, e-mail: mermathsb@hotmail.fr https://orcid.org/0000-0001-5087-5460

DOI:

https://doi.org/10.24193/subbmath.2021.3.10

Keywords:

Boundary conditions, nonlinear elasticity, mixed problem, Schauder’s fixed point theorem, topological degree, existence and uniqueness.

Abstract

In this paper, we consider a mixed problem for a nonlinear elasticity system with laws of general behavior. The coefficients of elasticity depends on x meanwhile the density of the volumetric forces depends on the displacement. The main aim of this paper is to apply the Schauder’s fixed point theorem and the techniques of topological degree to prove a theorem of the existence and the uniqueness of the solution of the corresponding variational problem.

Mathematics Subject Classification (2010): 35J45, 35J55, 35A05, 35A07, 35A15.

References

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Lions, J.L., Quelques M´ethode de Resolution des Problemes aux Limites non Lineaires, Dunod, Paris, 1969.

Merouani, B., Solutions singuli`eres du systeme de l’elasticite dans un polygone pour differentes conditions aux limites, Maghreb Math. Rev., 5(1996), no. 1 & 2, 95-112.

Merouani, B., Quelques problemes aux limites pour le systeme de Lame dans un secteur plan, C.R.A.S., T. 304, Serie I, no. 13, 1987.

Merouani, B., Boufenouche, R., Trigonometric series adapted for the study of Dirichlet boundary-value problems of Lame systems, Electron. J. Differential Equations, 2015(2015), no. 181, 1-6.

Rabinowitz, P.H., Th´eorie du degr´e topologique et application `a des probl`emes aux limites non lineaires (Lecture note by H. Berestycki), Report 75010, Laboratoire d’analyse Numeriqe, Universite Pierre et Marie Curie, Paris, 1989.

Raviart, P.A., Tomas, J.M., Introduction a l’Analyse Numeriques des Equations aux Derivees Partielles, Masson, Paris, 1983.

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Published

2021-09-30

How to Cite

ZOUBAI, F., & MEROUANI, B. (2021). Study of a mixed problem for a nonlinear elasticity system by topological degree. Studia Universitatis Babeș-Bolyai Mathematica, 66(3), 537–551. https://doi.org/10.24193/subbmath.2021.3.10

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