Research Article

Bifurcation of Limit Cycles by Perturbing a Piecewise Linear Hamiltonian System

Figure 2

The possible phase portraits of system (1) . (1) GC. (2) . (3) . (4) . (5) . (6) . (7) . (8) . (9) . (10) . (11) . (12) . (13) .
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