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Published in 2023 at "Demonstratio Mathematica"
DOI: 10.1515/dema-2022-0218
Abstract: Abstract The classification of the phase portraits is one of the classical and difficult problems in the qualitative theory of polynomial differential systems in R 2 {{\mathbb{R}}}^{2} , particularly for quadratic systems. Even with the…
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Keywords:
algebraic curves;
differential systems;
two classes;
portraits two ... See more keywords