Periodic orbits for real planar polynomial vector fields of degreenhavingninvariant straight lines taking into account their multiplicities
Keyword(s):
2007 ◽
Vol 17
(09)
◽
pp. 3295-3302
◽
2009 ◽
Vol 21
(3)
◽
pp. 487-499
◽
Keyword(s):
2011 ◽
Vol 21
(09)
◽
pp. 2505-2523
◽
2011 ◽
Vol 41
(5)
◽
pp. 1585-1629
◽
2005 ◽
Vol 25
(3)
◽
pp. 621-627
◽
Keyword(s):
Keyword(s):
2004 ◽
Vol 198
(2)
◽
pp. 374-380
◽
Keyword(s):