Differential Equations & Applications · Volume 10, Issue 4 On boundary value problem for equations with cubic nonlinearity and step-wise coefficient 10-29 Pages 433-447 DOI 10.7153/dea-2018-10-29 Downloads Short PDF Full PDF PNG Authors A. Kirichuka F. Sadyrbaev Keywords boundary value problem step-wise function cubic nonlinearity phase trajectory multiplicity of solutions Jacobian elliptic function Subject classes 34B15 34B05 34C10