22nd Seminar on Mathematics for various disciplines
Outline
 Period :
 10:3011:30 February 18, 2009
 Place :
 Graduate School of Mathematical Sciences the University of Tokyo, Room #056
 Programme :

 Ben T. Nohara (Musashi Institute of Technology)
 Title: Nonexistence theorem of periodic solutions except outofphase and inphase solutions in the coupled van der Pol equation system.
 ABSTRACT:
 We consider the periodic solutions of the coupled van der Pol equation system $\Sigma$, which is quite different from the ordinary van der Pol equation. We show the necessary and sufficient condition for the periodic solutions of $\Sigma$. Nonexistence theorem of periodic solutions except outofphase and inphase solutions in $\Sigma$ is presented.