Advances in Difference Equations
This paper is devoted to using perturbation and variational techniques to derive some sufficient conditions for the existence of multiple positive solutions in the sense of distributions to a singular second-order dynamic equation with homogeneous Dirichlet boundary conditions, which includes those problems related to the negative exponent Emden-Fowler equation.
Agarwal, R. P., Otero-Espinar, V., Perera, K., & Vivero, D. R. (2008). Multiple positive solutions in the sense of distributions of singular BVPs on time scales and an application to emden-fowler equations. Advances in Difference Equations, 2008