Multiplicity of positive solutions for a nonlinear fourth order equation
Volume 77 / 2001
Annales Polonici Mathematici 77 (2001), 161-168
MSC: Primary 34B18.
DOI: 10.4064/ap77-2-3
Abstract
We study the existence and multiplicity of positive solutions of the nonlinear fourth order problem The methods employed are upper and lower solutions and degree theory arguments.