Multiple positive solutions of a singular Emden-Fowler type problem for second-order impulsive differential systems. Lee, Eun Kyoung; Lee, Yong-Hoon — 2011 Boundary Value Problems [electronic only]
A double S -shaped bifurcation curve for a reaction-diffusion model with nonlinear boundary conditions. Goddard, Jerome II; Lee, Eun Kyoung; Shivaji, R. — 2010 Boundary Value Problems [electronic only]
Population models with nonlinear boundary conditions. Goddard, Jerome; Lee, Eun Kyoung; Shivaji, Ratnasingham — 2010 Electronic Journal of Differential Equations (EJDE) [electronic only]
Subsolutions: a journey from positone to infinite semipositone problems. Lee, Eun Kyoung; Shivaji, Ratnasingham; Ye, Jinglong — 2009 Electronic Journal of Differential Equations (EJDE) [electronic only]