On the configuration of limit cycles in planar vector fields

2004/09/22 by Ali Taghavi, Taghavi, Ali
Mathematics · #Classical Analysis and ODEs (math.CA) #FOS: Mathematics #math.CA

paper · pdf · doi:10.48550/arxiv.math/0409423

arxiv created 2004/09/22 · arxiv updated 2009/12/01

Abstract

We prove that coexistence of two limit cycles with disjoint interior can not occur in certain quadratic systems

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