成功是和自己的较量
Hong Men guan xi wen xian jian bian
Unfolding of the Critical Homoclinic Orbit of a Class of Degenerate Equilibrium Point
High Order Melinkov Functions and Problem of Uniformity in Global Bifurcation
On the Number of Limit Cycles of a Class of Quadratic Hamiltonian Systems Under Quadratic Perturbations
A Criterion for Determining the Monotonicity of the Ratio of Two Abelian Integrals
The Bifurcation Phenomenon of a Class of Planar Codimension 3 Polycycle $ S^ {(2)} $ with Two Saddles Resonating
A Note of a G.S. Petrov's Result about the Weakened 16th Hilbert Problem
The '@blue Sky Catastrophe' on Closed Surfaces