Existence of positive solutions for nonlinear systems

Jifeng Chu, Donal O'Regan, Meirong Zhang

This paper deals with the existence of positive solutions for the nonlinear system q(t)ϕ(p(t)u'_{i}(t)))'+f^{i}(t,\textbf{u})=0,\quad 0<t<1,\quad i=1,2,...,n. This system often ari…