Chengzhi Li

发表

Automatic Detection of Regional Snow Avalanches with Scattering and Interference of C-band SAR Data

Run Zhang, Yang Liu, Jianli Ding, 2020, Remote. Sens..

The cyclicity of the period annulus of a reversible quadratic system

Jaume Llibre, Chengzhi Li, Changjian Liu, 2021, Proceedings of the Royal Society of Edinburgh: Section A Mathematics.

The Cyclicity of Period Annulus of Degenerate Quadratic Hamiltonian System with Elliptic Segment

Shui-Nee Chow, Yingfei Yi, Chengzhi Li, 2000 .

Linear estimate for the number of zeros of Abelian integrals for quadratic isochronous centres

Jaume Llibre, Chengzhi Li, Weigu Li, 2000 .

Perturbations from an Elliptic Hamiltonian of Degree Four: I. Saddle Loop and Two Saddle Cycle☆

Freddy Dumortier, Chengzhi Li, Chengzhi Li, 2001 .

Abelian integrals of quadratic hamiltonian vector fields with an invariant straight line

Jaume Llibre, Chengzhi Li, Zhifen Zhang, 1995 .

Periodic orbits in 3-dimensional systems and application to a perturbed Volterra system

Zhien Ma, Chengzhi Li, Yicang Zhou, 2016 .

Generic unfolding of the nilpotent saddle of codimension 4

Freddy Dumortier, P. Fiddelaers, Chengzhi Li, 2001 .

Unfolding of a Quadratic Integrable System with Two Centers and Two Unbounded Heteroclinic Loops

Freddy Dumortier, Chengzhi Li, Chengzhi Li, 1997 .

A unified proof on the weak Hilbert 16th problem for n=2☆

Jaume Llibre, Fengde Chen, Chengzhi Li, 2006 .

Polynomial systems : a lower bound for the weakened 16th Hilbert problem

Jaume Llibre, Chengzhi Li, Weigu Li, 2001 .

Limit cycles appearing from the perturbation of a system with a multiple line of critical points

Joan Torregrosa, Armengol Gasull, Chengzhi Li, 2012 .

A cubic system with thirteen limit cycles

Chengzhi Li, Jiazhong Yang, Changjian Liu, 2009 .

The cyclicity of period annulus of a quadratic reversible Lotka–Volterra system

Jaume Llibre, Chengzhi Li, J. Llibre, 2009 .

QUADRATIC LIENARD EQUATIONS WITH QUADRATIC DAMPING

Freddy Dumortier, Chengzhi Li, Chengzhi Li, 1997 .

Integrability and linearizability of the Lotka-Volterra systems

Chengzhi Li, Changjian Liu, Chengzhi Li, 2004 .

Abelian Integrals and Limit Cycles

Chengzhi Li, Chengzhi Li, 2012 .

Perturbation from an elliptic Hamiltonian of degree four—III global centre

Freddy Dumortier, Chengzhi Li, Chengzhi Li, 2003 .

Degenerate Hopf bifurcation formulas and Hilbert's 16th problem

William F. Langford, Chengzhi Li, Isabel S. Labouriau, 1989 .

On the number of limit cycles bifurcating from a non-global degenerated center☆

Armengol Gasull, Chengzhi Li, Changjian Liu, 2007 .

Remarks on 16th weak Hilbert problem for n = 2*Remarks on 16th weak Hilbert problem for n = 2

Chengzhi Li, Chengzhi Li, Zeng Zhang, 2002 .

Canard phenomenon for an SIS epidemic model with nonlinear incidence

Zhien Ma, Chengzhi Li, Jianquan Li, 2014 .

Linear estimate of the number of zeros of Abelian integrals for a class of integrable non-Hamiltonian systems

Jaume Llibre, Chengzhi Li, Weigu Li, 2001 .

Codimension 3 B-T bifurcations in an epidemic model with a nonlinear incidence

Zhien Ma, Chengzhi Li, Jianquan Li, 2015 .

The cyclicity of the elliptic segment loops of the reversible quadratic Hamiltonian systems under quadratic perturbations

Robert Roussarie, Chengzhi Li, 2004 .

Limit cycles of planar polynomial vector fields

Jibin Li, Chengzhi Li, Maoan Han, 2010, Scholarpedia.

Uniqueness of limit cycles for Liénard differential equations of degree four

Jaume Llibre, Chengzhi Li, J. Llibre, 2012 .

Abelian integrals for quadratic centres having almost all their orbits formed by quartics

Yulin Zhao, Chengzhi Li, Weigu Li, 2002 .

On the limit cycles of polynomial differential systems with homogeneous nonlinearities

Jaume Llibre, Chengzhi Li, Weigu Li, 2000, Proceedings of the Edinburgh Mathematical Society.

Linear Estimation of the Number of Zeros of Abelian Integrals for Some Cubic Isochronous Centers

Jaume Llibre, Chengzhi Li, J. Llibre, 2002 .

The cyclicity of period annuli of degenerate quadratic Hamiltonian systems with elliptic segment loops

Shui-Nee Chow, Yingfei Yi, Chengzhi Li, 2002, Ergodic Theory and Dynamical Systems.

Perturbations from an Elliptic Hamiltonian of Degree Four

Freddy Dumortier, Chengzhi Li, Chengzhi Li, 2001 .

On the uniqueness of limit cycles surrounding one or more singularities for Liénard equations

Freddy Dumortier, Chengzhi Li, Chengzhi Li, 1996 .

Quadratic Perturbations of a Quadratic Reversible Lotka–Volterra System

Jaume Llibre, Chengzhi Li, 2010 .

Canard cycles for predator–prey systems with Holling types of functional response☆

Huaiping Zhu, Chengzhi Li, Huaiping Zhu, 2013 .

Limit Cycles of Differential Equations

Colin Christopher, Chengzhi Li, Chengzhi Li, 2007 .