The conservative form and singular perturbed ordinary differential equation with periodic boundary value problem were studied, and a conservative difference sch
Bifurcation of the invariant curves of a difference equation is studied. The system defined by the difference equation is integrable , so the study of the invar
The AMSAA-BISE model is derived from another approach. This certainly shows the correctness of the AMSAA- BISE model, and indicates the incorrectness of the app