A System for the Computation of Finite Fourier Sequences and Its Applications, Jiehua Zhu, Siming Zhu
Jiehua Zhu

Conditions for Origin to Be a Center and the Bifurcation of Limit Cycles in a Class of Cubic Systems, Jiehua Zhu, Siming Zhu
Jiehua Zhu

Wu’s Method in Mathematical Mechanical Proving and Its Applications in Ordinary Differential Equations, Jiehua Zhu, Siming Zhu
Jiehua Zhu

On the Problem of Distinguishing Between a Focus and a Center for Planar Cubic Systems, Jiehua Zhu, Siming Zhu
Jiehua Zhu