Global Structure of Planar Quadratic Semi-Quasi-Homogeneous Polynomial Systems

Global Structure of Planar Quadratic Semi-Quasi-Homogeneous Polynomial Systems

Year:    2019

Author:    Zecen He, Haihua Liang

Journal of Nonlinear Modeling and Analysis, Vol. 1 (2019), Iss. 4 : pp. 561–572

Abstract

This paper study the planar quadratic semi-quasi-homogeneous polynomial systems (short for PQSQHPS). By using the nilpotent singular points theorem, blow-up technique, Poincaré index formula, and Poincaré compaction method, the global phase portraits of such systems in canonical forms are discussed. Furthermore, we show that all the global phase portraits of PQSQHPS can be classed into six topological equivalence classes.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.12150/jnma.2019.561

Journal of Nonlinear Modeling and Analysis, Vol. 1 (2019), Iss. 4 : pp. 561–572

Published online:    2019-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    12

Keywords:    Semi-quasi-homogeneous quadratic system singular point global phase portraits.

Author Details

Zecen He

Haihua Liang