@Article{JNMA-1-561,
author = {He , Zecen and Liang , Haihua},
title = {Global Structure of Planar Quadratic Semi-Quasi-Homogeneous Polynomial Systems},
journal = {Journal of Nonlinear Modeling and Analysis},
year = {2021},
volume = {1},
number = {4},
pages = {561--572},
abstract = {<p style="text-align: justify;">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.</p>},
issn = {2562-2862},
doi = {https://doi.org/10.12150/jnma.2019.561},
url = {http://global-sci.org/intro/article_detail/jnma/18840.html}
}