Sufficient and necessary condition for the permanence of periodic predator-prey system.
Super and subsolutions for elliptic equations on all of .
Supersensitivity for a discrete-time aggregation model.
Survival in a two-dimensional Lotka-Volterra system.
Survival maximization for a Laguerre population.
SV40 assembly in vivo and in vitro.
Systems of nonlinear delay integral equations modelling population growth in a periodic environment
In this paper we study the existence and uniqueness of positive and periodic solutions of nonlinear delay integral systems of the type
Systems of possibilistic regressions: a case study in ecological inference.
This work introduces how possibilistic regression can be used in the case of non symmetrical triangular membership functions, building a system of regressions, so that suitable restrictions for each particular problem can be incorporated. We apply this methodology to the problem of ecological inference, in particular to the estimation of the electoral transition matrix. An experimentation with several examples shows the benefits of the new approach.
Systems of quasilinear parabolic equations with discontinuous coefficients and continuous delays.