Hilbert's 16th problem: Limit cycles of polynomial vector fields in the plane

Author(s):  
Charles Pugh
Nonlinearity ◽  
2004 ◽  
Vol 18 (1) ◽  
pp. 175-209 ◽  
Author(s):  
Marcin Bobie ski ◽  
Henryk o a dek

2006 ◽  
Vol 16 (04) ◽  
pp. 925-943 ◽  
Author(s):  
JIBIN LI ◽  
MINGJI ZHANG ◽  
SHUMIN LI

By using the bifurcation theory of planar dynamical systems and the method of detection functions, the bifurcations of limit cycles in a Z2-equivariant planar perturbed Hamiltonian polynomial vector fields of degree 7 are studied. An example of a special Z2-equivariant vector field having 50 limit cycles with a configuration of compound eyes are given.


Scholarpedia ◽  
2010 ◽  
Vol 5 (8) ◽  
pp. 9648 ◽  
Author(s):  
Maoan Han ◽  
Jibin Li ◽  
Chengzhi Li

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