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math.DS2023
The topology and isochronicity on complex Hamiltonian systems with homogeneous nonlinearities
Guangfeng Dong, Jiazhong Yang
In this paper, we study the Hamiltonian differential systems with homogeneous nonlinearity parts on . Firstly, we present a series of topological properties of polyno…
math.DS2017★ 4 cited
On the number of hyperelliptic limit cycles of Liénard systems
XinJie Qian, JiaZhong Yang
In this paper, we study the maximum number, denoted by , of hyperelliptic limit cycles of the Liénard systems where, respective…