EXISTENCE OF SOLUTIONS FOR A NON-VARIATIONAL SYSTEM OF ELLIPTIC PDE'S VIA TOPOLOGICAL METHODS

被引:0
作者
Soltani, Fethi [1 ]
Yazidi, Habib [2 ]
机构
[1] Jazan Univ, Fac Sci, Dept Math, POB 277, Jazan 45142, Saudi Arabia
[2] Univ Tunis, Natl Sch Engn Tunis, Dept Math, 5 St Taha Hssine, Tunis 1008, Tunisia
关键词
Biharmonic equation; non-variational system; a priori estimates; POSITIVE SOLUTIONS; CRITICAL EXPONENTS; EQUATIONS;
D O I
暂无
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this article, we prove the existence of solutions for a non variational system of elliptic PDE's. Also we study a system of bi-Laplacian equations with two nonlinearities and without variational assumptions. First, we prove a priori solution estimates, and then we use fixed point theory, to deduce the existence of solutions. Finally, to complement of the existence theorem, we establish a non-existence result.
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页数:13
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[21]  
Van Der Vost R. C. A. M., 1990, ARCH RATION MECH AN, V116, P375