Fig. 6.17 Poincaré maps for € u þ 0:25 _
u À u þ u
3 ¼ p cos t showing: (a) no homoclinic intersections for p = 0.11; (b) quadratic tangency for p = 0.19; (c) Transverse intersections for p = 0.30.
(computed by Yoshisuke Ueda as a personal communication to Guckenheimer and Holmes 1983)
6.5 Tools for Predicting the Onset of Chaos
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