Separatrix Cycles and Multiple Limit Cyc
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A. Zegeling
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Article
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1994
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Elsevier Science
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English
β 994 KB
In this paper a class of quadratic systems is studied. By quadratic systems we mean autonomous quadratic vector fields in the plane. The class under consideration is class \(\mathrm{II}_{n=0}\) in the Chinese classification of quadratic systems. Bifurcation sets \(\delta=\delta^{*}(l, m)(m>2, l>0)\)