... 2009, Article ID 687385, 20 pagesdoi:10.1155/2009/687385 Research Article Multiplicity of Positive and Nodal Solutions for Nonhomogeneous Elliptic Problems in Unbounded Cylinder DomainsTsing-San ... “Multiple solutions for semilinear elliptic equations in unbounded cylinder domains,”Proceedings of the Royal Society of Edinburgh. Section A, vol. 134, no. 4, pp. 719–731, 2004.3 S. Adachi and ... 335–364, 1980.10 D M. Cao and H S. Zhou, “Multiple positive solutions of nonhomogeneous semilinear elliptic equations in RN,” Proceedings of the Royal Society of Edinburgh. Section A, vol. 126,...