Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Silva César M"'
In this paper, we investigate the convergence of asymptotic systems in non-autonomous Cohen--Grossberg neural network models, which include both infinite discrete time-varying and distributed delays. We derive stability results under conditions where
Externí odkaz:
http://arxiv.org/abs/2410.15867
In this paper, we introduce generalized dichotomies for nonautonomous random linear dynamical systems acting on arbitrary Banach spaces, and obtain their complete characterization in terms of an appropriate admissibility property. These generalized d
Externí odkaz:
http://arxiv.org/abs/2410.13697
In the present paper, we investigate both the global exponential stability and the existence of a periodic solution of a general differential equation with unbounded distributed delays. The main stability criterion depends on the dominance of the non
Externí odkaz:
http://arxiv.org/abs/2309.10824
In this paper, a new global exponential stability criterion is obtained for a general multidimensional delay difference equation using induction arguments. In the cases that the difference equation is periodic, we prove the existence of a periodic so
Externí odkaz:
http://arxiv.org/abs/2211.04853
Autor:
Silva, César M.
For linear nonautonomous differential equations we introduce a new family of spectrums defined with general nonuniform dichotomies: for a given growth rate $\mu$ in a large family of growth rates, we consider a notion of spectrum, named nonuniform $\
Externí odkaz:
http://arxiv.org/abs/2205.07391
Publikováno v:
In Communications in Nonlinear Science and Numerical Simulation August 2024 135
Autor:
Silva, César M.
We obtain characterizations of nonuniform dichotomies, defined by general growth rates, based on admissibility conditions. Additionally, we use the obtained characterizations to derive robustness results for the considered dichotomies. As particular
Externí odkaz:
http://arxiv.org/abs/2012.11910
Using Mickens nonstandard method, we obtain a discrete family of nonautonomous eco-epidemiological models that include general functions corresponding to the predation of the infected and uninfected preys. We obtain results on the persistence and ext
Externí odkaz:
http://arxiv.org/abs/2007.10279
We consider random perturbations of a general eco-epidemiological model. We prove the existence of a global random attractor, the persistence of susceptibles preys and provide conditions for the simultaneous extinction of infectives and predators. We
Externí odkaz:
http://arxiv.org/abs/2007.10188
We consider a nonautonomous eco-epidemiological model with general functions for predation on infected and uninfected preys as well as general functions associated to the vital dynamics of the susceptible prey and predator populations. We obtain pers
Externí odkaz:
http://arxiv.org/abs/2001.00900