In this work we give necessary and sufficient conditions to have a maximum principle for nonlinear system involving singular (p,q)-Laplacian operators on bounded domain Ω of R^n and then we prove the existence of p...In this work we give necessary and sufficient conditions to have a maximum principle for nonlinear system involving singular (p,q)-Laplacian operators on bounded domain Ω of R^n and then we prove the existence of positive weak solutions for the same system by using the Browder theorem method.展开更多
文摘In this work we give necessary and sufficient conditions to have a maximum principle for nonlinear system involving singular (p,q)-Laplacian operators on bounded domain Ω of R^n and then we prove the existence of positive weak solutions for the same system by using the Browder theorem method.