Permanence of a semi-ratio-dependent predator-prey system with nonmonotonic functional response and time delay.
Permanence of periodic predator-prey system with functional responses and stage structure for prey.
Permanence of periodic predator-prey system with general nonlinear functional response and stage structure for both predator and prey.
Permanence of predator-prey system with infinite delay.
Perron conditions and uniform exponential stability of linear skew-product semiflows on locally compact spaces.
Persistence and bifurcation analysis on a predator–prey system of holling type
We present a Gause type predator–prey model incorporating delay due to response of prey population growth to density and gestation. The functional response of predator is assumed to be of Holling type II. In absence of prey, predator has a density dependent death rate. Sufficient criterion for uniform persistence is derived. Conditions are found out for which system undergoes a Hopf–bifurcation.
Persistence and bifurcation analysis on a predator–prey system of holling type
We present a Gause type predator–prey model incorporating delay due to response of prey population growth to density and gestation. The functional response of predator is assumed to be of Holling type II. In absence of prey, predator has a density dependent death rate. Sufficient criterion for uniform persistence is derived. Conditions are found out for which system undergoes a Hopf–bifurcation.
Persistence and extinction of a stochastic delay predator-prey model under regime switching
The paper is concerned with a stochastic delay predator-prey model under regime switching. Sufficient conditions for extinction and non-persistence in the mean of the system are established. The threshold between persistence and extinction is also obtained for each population. Some numerical simulations are introduced to support our main results.
Persistence and extinction of single population in a polluted environment.
Persistence and stability for a generalized Leslie-Gower model with stage structure and dispersal.
Persistence of Crandall-Rabinowitz type bifurcations under small perturbations.
Perturbation index of linear partial differential-algebraic equations with a hyperbolic part
This paper deals with linear partial differential-algebraic equations (PDAEs) which have a hyperbolic part. If the spatial differential operator satisfies a Gårding-type inequality in a suitable function space setting, a perturbation index can be defined. Theoretical and practical examples are considered.
Perturbation methods in the theory of heat conduction
Perturbation of an eigen-value from a dense point spectrum : a general Floquet hamiltonian
Perturbation of Hamiltonian Systems with Keplerian Potentials.
Perturbation singulière en dimension trois : canards en un point pseudo-singulier nœud
On étudie les systèmes différentiels singulièrement perturbés de dimension 3 du typeoù , , sont analytiques quelconques. Les travaux antérieurs étudiaient les points réguliers où la surface lente est transverse au champ rapide vertical. C’est le domaine d’application du théorème de Tikhonov. Dans d’autres travaux antérieurs, on étudiait les singularités de certains types : plis et fronces de la surface lente, ainsi que certaines singularités plus compliquées, analogues aux points tournants...
Perturbation stochastique de processus de rafle
Lors de cet exposé, nous nous intéressons à l’étude de perturbations stochastiques de certaines inclusions différentielles du premier ordre : les processus de rafle par des ensembles uniformément prox-réguliers. Ce travail nous amène à combiner la théorie des processus de rafle et celle traitant de la reflexion d’un mouvement brownien sur la frontière d’un ensemble. Nous donnerons des résultats traitant du caractère bien-posé de ces inclusions différentielles stochastiques et de leur stabilité.
Perturbation theorems for maximal -regularity
Perturbations numériques des évolutions parabolique et hyperbolique
Perturbations of Positive Semigroups and Applications to Population Genetics.