Multiple periodic solutions of a nonautonomous plant-hare model
Summary: Based on Mawhin's coincidence degree theory, sufficient conditions are obtained for the existence of at least \textit{two} positive periodic solutions for a plant-hare model with toxin-determined functional response (nonmonotone). Some new technique is used in this paper, because standard arguments in the literature are not applicable.
scientific article; zbMATH DE number 7021770