MS#36. Bifurcations and Chaos in Forced Van der Pol Systems, 1983 In:Dynamical Systems and Singularities, pp. 313-323. Subject: Chaos theory Abstract: The Van der Pol system, modified through the addition of constant force and bias terms and explored through similation, reveals an unsuspected bifurcation of codimention two. Forcing the system yields and abundance of chaotic attractors and bifurcations. [PDF] 32 pages, 1 MB Last revised by Ralph Abraham