Published online by Cambridge University Press: 20 November 2018
For the autonomous system x' = F(x,∊), the case where the second Hopf-Friedrichs condition fails is analyzed in that sufficient conditions for bifurcation of non-trivial periodic solutions to occur are given. An application to mathematical ecology is also discussed.
Research for this paper was partically supported by the National Research Council of Canada, Grant No. NRC A-4823. This paper was partially written while on Sabbatical leave at the University of Minnesota, Minneapolis.