Classification of quadratic systems admitting the existence of an algebraic limit cycle

Bulletin des Sciences Mathématiques - Tập 131 - Trang 405-421 - 2007
Jaume Llibre1, Grzegorz Świrszcz2
1Departament de Matemàtiques, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Spain
2IBM T.J. Watson Research Center, 33-237, 1101 Kitchawan Road, Route 134, P.O. Box 218, Yorktown Heights, NY 10598, USA

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