Type: Article
Publication Date: 1976-12-01
Citations: 33
DOI: https://doi.org/10.1137/0131059
A Van der Pol equation with periodic forcing term is investigated for large values of the parameter. A synchronized periodic solution is approximated by singular perturbation methods. It appears that the parameter $\nu $ and the amplitude b of the forcing term have to satisfy certain conditions for finding a matched asymptotic approximation. In the b, $\nu $-plane overlapping regions are constructed in which these conditions are satisfied. In the domain of overlap two periodic solutions with different periods are possible which is in agreement with numerical and analytical results.