Yirong Liu

发表

Integrability Conditions for Lotka-Volterra Planar Complex Quartic Systems Having Homogeneous Nonlinearities

Jaume Giné, Zhibek Kadyrsizova, Yirong Liu, 2011, Acta Applicandae Mathematicae.

Bifurcations of Limit Cycles Created by a Multiple Nilpotent Critical Point of Planar Dynamical Systems

Yirong Liu, Jibin Li, Yirong Liu, 2011, Int. J. Bifurc. Chaos.

A quintic polynomial differential system with eleven limit cycles at the infinity

Qi Zhang, Yirong Liu, Qi Zhang, 2007, Comput. Math. Appl..

Almost Periodic Solution for Shunting Inhibitory Cellular Neural Networks with Time-varying Delays and Variable Coefficients

Yirong Liu, Tiejun Zhou, Anping Chen, 2006, Neural Processing Letters.

The center conditions and bifurcation of limit cycles at the infinity for a cubic polynomial system

Yirong Liu, Lina Zhang, Xuejiao Jiang, 2011, Appl. Math. Comput..

Center problem and bifurcation behavior for a class of quasi analytic systems

Haibo Chen, Yirong Liu, Chaoxiong Du, 2011, Appl. Math. Comput..

Center conditions for Three Classes of Poincaré Systems in the Complex Domain

Tao Liu, Yirong Liu, Lianggang Wu, 2012, Int. J. Bifurc. Chaos.

Chapter 4. Isochronous Center In Complex Domain

Yirong Liu, Jibin Li, Wentao Huang, 2014 .

Center Problem and Multiple Hopf bifurcation for the Z5-Equivariant Planar Polynomial Vector Fields of Degree 5

Yirong Liu, Jibin Li, 2009, Int. J. Bifurc. Chaos.

Bifurcations of Limit Cycles and Center Problem for a Class of cubic Nilpotent System

Yirong Liu, Jibin Li, Yirong Liu, 2010, Int. J. Bifurc. Chaos.

Center conditions and bifurcation of limit cycles at three-order nilpotent critical point in a septic Lyapunov system

Feng Li, Yirong Liu, Hongwei Li, 2011, Math. Comput. Simul..

Conditions of infinity to be an isochronous centre for a rational differential system

Wentao Huang, Yirong Liu, Weinian Zhang, 2007, Math. Comput. Model..

Seven Large-amplitude Limit Cycles in a cubic Polynomial System

Wentao Huang, Yirong Liu, Wentao Huang, 2006, Int. J. Bifurc. Chaos.

Analytic Integrability of Two Lopsided Systems

Feng Li, Yirong Liu, Pei Yu, 2016, Int. J. Bifurc. Chaos.

Center and isochronous center conditions for switching systems associated with elementary singular points

Yun Tian, Yirong Liu, Pei Yu, 2015, Commun. Nonlinear Sci. Numer. Simul..

Progressive Surface Reconstruction of Cardiac Anatomy from Sparse and Scattered Points for Heart Mapping Procedure

Yirong Liu, Yifan Fu, Rao Fu, 2020 .

Double Bifurcation of Nilpotent Focus

Feng Li, Yirong Liu, Yirong Liu, 2015, Int. J. Bifurc. Chaos.

A Novel Method for Tool Identification and Wear Condition Assessment Based on Multi-Sensor Data

Yirong Liu, Xiaoli Wang, Fuan Wang, 2020, Applied Sciences.

Bifurcation at the equator for a class of quintic polynomial differential system

Haibo Chen, Qi Zhang, Yirong Liu, 2006, Appl. Math. Comput..

New Study on the Center Problem and bifurcations of Limit Cycles for the Lyapunov System (II)

Yirong Liu, Jibin Li, Yirong Liu, 2009, Int. J. Bifurc. Chaos.

Global exponential periodicity for BAM neural network with periodic coefficients and continuously distributed delays

Xiaoping Li, Yirong Liu, Yuehua Liu, 2008, Comput. Math. Appl..

Existence and global exponential stability of periodic solution for discrete-time BAM neural networks

Yirong Liu, Yuehua Liu, Tiejun Zhou, 2006, Appl. Math. Comput..

Periodic Constants and Time-Angle Difference of Isochronous Centers for Complex Analytic Systems

Yirong Liu, Jibin Li, Yirong Liu, 2006, Int. J. Bifurc. Chaos.

Limit Cycles in a Class of Quartic Kolmogorov Model with Three Positive Equilibrium Points

Qi Zhang, Yirong Liu, Chaoxiong Du, 2015, Int. J. Bifurc. Chaos.

A Class of Three-Dimensional Quadratic Systems with Ten Limit Cycles

Yirong Liu, Wentao Huang, Chaoxiong Du, 2016, Int. J. Bifurc. Chaos.

Center Problem and Multiple Hopf bifurcation for the Z6-Equivariant Planar Polynomial Vector, Fields of Degree 5

Yirong Liu, Jibin Li, 2009, Int. J. Bifurc. Chaos.

A class of ninth degree system with four isochronous centers

Yirong Liu, Chaoxiong Du, Heilong Mi, 2008, Comput. Math. Appl..

Integrability and generalized center problem of resonant singular point

Qi Zhang, Yirong Liu, Qi Zhang, 2015, Appl. Math. Lett..

Chapter 7 On Quasi Analytic Systems

Yirong Liu, Jibin Li, Wentao Huang, 2014 .

Generalized singular point quantity and integrability of degenerate resonant singular point

Qi Zhang, Yirong Liu, Gui Weihua, 2009, Appl. Math. Comput..

Limit Cycle Bifurcation of Infinity and Degenerate Singular Point in Three-Dimensional Vector Field

Qi Zhang, Yirong Liu, Chaoxiong Du, 2016, Int. J. Bifurc. Chaos.

New Study on the Center Problem and bifurcations of Limit Cycles for the Lyapunov System (I)

Yirong Liu, Jibin Li, Yirong Liu, 2009, Int. J. Bifurc. Chaos.

Linear recursion formulas of quantities of singular point and applications

Haibo Chen, Yirong Liu, 2004, Appl. Math. Comput..

Limit Cycles Bifurcations for a Class of Kolmogorov Model in Symmetrical Vector Field

Wentao Huang, Yirong Liu, Chaoxiong Du, 2014, Int. J. Bifurc. Chaos.

On Third-Order Nilpotent Critical Points: Integral Factor Method

Yirong Liu, Jibin Li, Yirong Liu, 2011, Int. J. Bifurc. Chaos.

The bifurcation of limit cycles in Zn-equivariant vector fields

Haibo Chen, Yirong Liu, Chaoxiong Du, 2010, Appl. Math. Comput..

A cubic polynomial system with seven limit cycles at infinity

Qi Zhang, Yirong Liu, Qi Zhang, 2006, Appl. Math. Comput..

General center conditions and bifurcation of limit cycles for a quasi-symmetric seventh degree system

Yirong Liu, Chaoxiong Du, 2008, Comput. Math. Appl..

Intelligent Guidance Programming of Welding Robot for 3D Curved Welding Seam

Bo Zhou, Fang Fang, Yahui Gan, 2021, IEEE Access.

Study of Wind Turbine Fault Diagnosis and Early Warning Based on SCADA Data

Yirong Liu, Xiang Gao, Yilong Shi, 2021, IEEE Access.

Integrability Conditions for Lotka-Volterra Planar Complex Quartic Systems Having Homogeneous Nonlinearities

Jaume Giné, Yirong Liu, Brigita Ferčec, 2013 .

The generalized center problem of degenerate resonant singular point

Yirong Liu, Gui Wei-hua, Qi Zhang, 2009 .

CENTER AND ISOCHRONOUS CENTER AT INFINITY IN A CLASS OF PLANAR DIFFERENTIAL SYSTEMS

Yirong Liu, Pei Yu, Haibo Chen, 2008 .

A cubic system with twelve small amplitude limit cycles

Yirong Liu, Wentao Huang, Wentao Huang, 2005 .

Bi-center problem and bifurcation of limit cycles from nilpotent singular points in Z2-equivariant cubic vector fields

Yirong Liu, Pei Yu, Feng Li, 2018, Journal of Differential Equations.

New Results on the Study of Zq-Equivariant Planar Polynomial Vector Fields

Yirong Liu, Yirong Liu, Jibin Li, 2010 .

A polynomial differential system withnine limit cycles at infinity

Yirong Liu, Wentao Huang, 2004 .

Pyrolysis of polystyrene waste in a fluidized-bed reactor to obtain styrene monomer and gasoline fraction

Yirong Liu, Jianqiu Wang, Yirong Liu, 2000 .

Small limit cycles bifurcating from fine focus points in quartic order Z3-equivariant vector fields

Yirong Liu, Chaoxiong Du, Qinlong Wang, 2008 .

Center conditions and bifurcation of limit cycles at degenerate singular points in a quintic polynomial differential system

Yirong Liu, Haibo Chen, Xianwu Zeng, 2005 .

Stability and bifurcations of limit cycles of the equator in a class of cubic polynomial systems

Yirong Liu, Haibo Chen, 2002 .

A new method to determine isochronous center conditions for polynomial differential systems

Wentao Huang, Yirong Liu, Wentao Huang, 2003 .

A new criterion to global exponential periodicity for discrete-time BAM neural network with infinite delays

Yirong Liu, Tiejun Zhou, Xiaoping Li, 2009 .