On periodic cohort solutions of a size-structured population model
نویسندگان
چکیده
We consider a size-structured population model with discontinuous reproduction and feedback through the environmental variable \substrate". The model admits solutions with nitely many cohorts and in that case the problem is described by a system of ODEs involving a bifurcation parameter. Existence of nontrivial periodic n-cohort solutions is investigated. Moreover, we discuss the question whether n cohorts (n 2) with small size diierences will tend to a periodic one-cohort solution as t ! 1.
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تاریخ انتشار 1995