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  1. No Access

    Article

    The effect of epidemics on genetic evolution

    Mathematical models of a vector-borne infectious disease acting on a host population consisting of three genotypes which differ in susceptibility to, recovery from, and death due to the disease are presented a...

    K. Beck, J. P. Keener, P. Ricciardi in Journal of Mathematical Biology (1984)

  2. No Access

    Article

    The effects of seasonal fluctuations on an open access fishery problem

    The Gordon-Schaefer model with periodic coefficients is studied. A suitable real parameter d is found such that positive periodic solutions exist iff d > 0. No uniqueness result may be proved as shown with an exa...

    A. Ardito, P. Ricciardi, A. Schiaffino in Journal of Mathematical Biology (1993)

  3. No Access

    Article

    Lyapunov functions for a generalized Gause-type model

    Lyapunov functions are given to prove the global asymptotic stability of a large class of predator-prey models, including the ones in which the intrinsic growth rate of the prey follows the Ricker-law or the O...

    A. Ardito, P. Ricciardi in Journal of Mathematical Biology (1995)