American Institute of Mathematical Sciences

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July  2016, 36(7): 4015-4025. doi: 10.3934/dcds.2016.36.4015

Planar quasi-homogeneous polynomial systems with a given weight degree

Yanqin Xiong 1, and  Maoan Han 2,

1. 

School of Mathematics and Statistics, Nanjing University of Information Science & Technology, Nanjing 210044, China
2. 

Department of Mathematics, Shanghai Normal University, Shanghai 200234

Received  January 2015 Revised  January 2016 Published  March 2016

In this paper, we investigate a class of quasi-homogeneous polynomial systems with a given weight degree. Firstly, by some analytical skills, several properties about this kind of systems are derived and an algorithm can be established to obtain all possible explicit systems for a given weight degree. Then, we focus on center problems for such systems and provide some necessary conditions for the existence of centers. Finally, for a specific quasi-homogeneous polynomial system, we characterize its center and prove that the center is not isochronous.
Keywords: Quasi-homogeneous polynomial system, weight degree, isochronous center..
Mathematics Subject Classification: Primary: 34C05, 34C07, 34C2.
Citation: Yanqin Xiong, Maoan Han. Planar quasi-homogeneous polynomial systems with a given weight degree. Discrete & Continuous Dynamical Systems - A, 2016, 36 (7) : 4015-4025. doi: 10.3934/dcds.2016.36.4015
References:
[1]

W. Aziz, J. Llibre and C. Pantazi, Centers of quasi-homogeneous polynomial differential equations of degree three,, Advances in Mathematics, 254 (2014), 233.  doi: 10.1016/j.aim.2013.12.006.  Google Scholar

[2]

A. Cima and J. Llibre, Algebraic and topological classification of the homogeneous cubic systems in the plane,, J. Math. Anal. Appl., 147 (1990), 420.  doi: 10.1016/0022-247X(90)90359-N.  Google Scholar

[3]

T. Date and M. Lai, Canonical forms of real homogeneous quadratic transformations,, J. Math. Anal. Appl., 56 (1976), 650.  doi: 10.1016/0022-247X(76)90031-7.  Google Scholar

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T. Date, Classification and analysis of two-dimensional homogeneous quadratic differential equations systems,, J. Differential Equations, 32 (1979), 311.  doi: 10.1016/0022-0396(79)90037-8.  Google Scholar

[5]

F. Dumortier, J. Llibre and J. C. Artés, Qualitative Theorey of Planar Polynomial Systems,, Springer, (2006).   Google Scholar

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B. García, J. Llibre and J. S. Pérea del Río, Planar quasi-homogeneous polynomial differential systems and their integrability,, J. Differential Equations, 255 (2013), 3185.  doi: 10.1016/j.jde.2013.07.032.  Google Scholar

[7]

L. Gavrilov, J. Giné and M. Grau, On the cyclicity of weight-homogeneous centers,, J. Differential Equations, 246 (2009), 3126.  doi: 10.1016/j.jde.2009.02.010.  Google Scholar

[8]

J. Giné, M. Grau and J. Llibre, Polynomial and rational first integrals for planar quasi-homogeneous polynomial differential systems,, Discrete Contin. Dyn. Syst., 33 (2013), 4531.  doi: 10.3934/dcds.2013.33.4531.  Google Scholar

[9]

J. Llibre and X. Zhang, Polynomial first integrals for quasi-homogeneous polynomial differential systems,, Nonlinearity, 15 (2002), 1269.  doi: 10.1088/0951-7715/15/4/313.  Google Scholar

[10]

J. Llibre and C. Pessoa, On the centers of the weight-homogeneous polynomial vector fields on the plane,, J. Math. Anal. Appl., 359 (2009), 722.  doi: 10.1016/j.jmaa.2009.06.036.  Google Scholar

[11]

W. Li, J. Llibre, J. Yang and Z. Zhang, Limit cycles bifurcating from the period annulus of quasi-homogeneous centers,, J. Dyn. Diff. Equat., 21 (2009), 133.  doi: 10.1007/s10884-008-9126-1.  Google Scholar

[12]

H. Liang, J. Huang and Y. Zhao, Classification of global phase portraits of planar quartic quasi-homogeneous polynomial differential systems,, Nonlinear Dynamics, 78 (2014), 1659.  doi: 10.1007/s11071-014-1541-8.  Google Scholar

[13]

P. Mardešić, C. Rousseau and B. Toni, Linearization of isochronous centers,, J. Differential Equations, 121 (1995), 67.  doi: 10.1006/jdeq.1995.1122.  Google Scholar

[14]

Y. Zhao, Limit cycles for planar semi-quasi-homogeneous polynomial vector fields,, J. Math. Anal. Appl., 397 (2013), 276.  doi: 10.1016/j.jmaa.2012.07.060.  Google Scholar

show all references

References:
[1]

W. Aziz, J. Llibre and C. Pantazi, Centers of quasi-homogeneous polynomial differential equations of degree three,, Advances in Mathematics, 254 (2014), 233.  doi: 10.1016/j.aim.2013.12.006.  Google Scholar

[2]

A. Cima and J. Llibre, Algebraic and topological classification of the homogeneous cubic systems in the plane,, J. Math. Anal. Appl., 147 (1990), 420.  doi: 10.1016/0022-247X(90)90359-N.  Google Scholar

[3]

T. Date and M. Lai, Canonical forms of real homogeneous quadratic transformations,, J. Math. Anal. Appl., 56 (1976), 650.  doi: 10.1016/0022-247X(76)90031-7.  Google Scholar

[4]

T. Date, Classification and analysis of two-dimensional homogeneous quadratic differential equations systems,, J. Differential Equations, 32 (1979), 311.  doi: 10.1016/0022-0396(79)90037-8.  Google Scholar

[5]

F. Dumortier, J. Llibre and J. C. Artés, Qualitative Theorey of Planar Polynomial Systems,, Springer, (2006).   Google Scholar

[6]

B. García, J. Llibre and J. S. Pérea del Río, Planar quasi-homogeneous polynomial differential systems and their integrability,, J. Differential Equations, 255 (2013), 3185.  doi: 10.1016/j.jde.2013.07.032.  Google Scholar

[7]

L. Gavrilov, J. Giné and M. Grau, On the cyclicity of weight-homogeneous centers,, J. Differential Equations, 246 (2009), 3126.  doi: 10.1016/j.jde.2009.02.010.  Google Scholar

[8]

J. Giné, M. Grau and J. Llibre, Polynomial and rational first integrals for planar quasi-homogeneous polynomial differential systems,, Discrete Contin. Dyn. Syst., 33 (2013), 4531.  doi: 10.3934/dcds.2013.33.4531.  Google Scholar

[9]

J. Llibre and X. Zhang, Polynomial first integrals for quasi-homogeneous polynomial differential systems,, Nonlinearity, 15 (2002), 1269.  doi: 10.1088/0951-7715/15/4/313.  Google Scholar

[10]

J. Llibre and C. Pessoa, On the centers of the weight-homogeneous polynomial vector fields on the plane,, J. Math. Anal. Appl., 359 (2009), 722.  doi: 10.1016/j.jmaa.2009.06.036.  Google Scholar

[11]

W. Li, J. Llibre, J. Yang and Z. Zhang, Limit cycles bifurcating from the period annulus of quasi-homogeneous centers,, J. Dyn. Diff. Equat., 21 (2009), 133.  doi: 10.1007/s10884-008-9126-1.  Google Scholar

[12]

H. Liang, J. Huang and Y. Zhao, Classification of global phase portraits of planar quartic quasi-homogeneous polynomial differential systems,, Nonlinear Dynamics, 78 (2014), 1659.  doi: 10.1007/s11071-014-1541-8.  Google Scholar

[13]

P. Mardešić, C. Rousseau and B. Toni, Linearization of isochronous centers,, J. Differential Equations, 121 (1995), 67.  doi: 10.1006/jdeq.1995.1122.  Google Scholar

[14]

Y. Zhao, Limit cycles for planar semi-quasi-homogeneous polynomial vector fields,, J. Math. Anal. Appl., 397 (2013), 276.  doi: 10.1016/j.jmaa.2012.07.060.  Google Scholar

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