3 citations · 3 across the 3 of their papers we have counts for
3 papers
math.CA2012★ 3 cited
Limit Cycle Bifurcations from Centers of Symmetric Hamiltonian Systems Perturbing by Cubic Polynomials
Zhaoping Hu, Bin Gao, Valery G. Romanovski
In this paper, we consider some cubic near-Hamiltonian systems obtained from perturbing the symmetric cubic Hamiltonian system with two symmetric singular points by cubic polynomia…
math.CA2011
The maximal number of limit cycles in a family of polynomial systems
Guanghui Xiang, Zhaoping Hu
The main objective of this paper is to study the number of limit cycles in a family of polynomial systems. Using bifurcation methods, we obtain the maximal number of limit cycles i…
math.CA2011
Bifurcations of planar Hamiltonian systems with impulsive perturbation
Zhaoping Hu, Maoan Han, Valery G. Romanovski
In this paper, by means of the Melnikov functions we consider bifurcations of harmonic or subharmonic solutions from a periodic solution of a planar Hamiltonian system under impuls…