Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Sepulveda, Daniel"'
We study an almost periodic version of a metapopulation model developed by Tilman \textit{et.al} and Nee \textit{et.al} in the nineties, which generalizes the classical Levins approach by considering several species in competition affected by habitat
Externí odkaz:
http://arxiv.org/abs/2412.02952
Autor:
Mejías, Wilson, Sepúlveda, Daniel
This study presents a mathematical model that describes the relationship between the Puma concolor and its prey using delay differential equations, a Holling type III functional response, logistic growth for the prey, and a Ricker-type function to mo
Externí odkaz:
http://arxiv.org/abs/2407.07904
Publikováno v:
In Communications in Nonlinear Science and Numerical Simulation May 2024 132
Autor:
Ossandón, Gustavo, Sepúlveda, Daniel
This article studies an $\omega$-periodic system of Nicholson-type differential equations with nonlinear density-dependent mortality rate. Using the degree theory we obtain sufficient conditions for the existence of a positive solution $\omega$-perio
Externí odkaz:
http://arxiv.org/abs/2001.10522
Autor:
Moggia, Claudia *, Peñaloza, Oscar, Torres, José, Romero-Bravo, Sebastian, Sepulveda, Daniel, Jara, Roberto, Vivanco, Sergio, Valdés, Marcelo, Zúñiga, Mauricio, Beaudry, Randolph M., Lobos, Gustavo A. *
Publikováno v:
In Postharvest Biology and Technology April 2022 186
Publikováno v:
In Journal of Differential Equations 5 December 2021 303:156-182
Autor:
Sepúlveda, Daniel
We study approximation of non-autonomous linear differential equations with variable delay over infinite intervals. We use piecewise constant argument to obtain a corresponding discrete difference equation. The study of numerical approximation over a
Externí odkaz:
http://arxiv.org/abs/1607.06960
Publikováno v:
In Journal of Mathematical Analysis and Applications 1 March 2021 495(1)
In this paper, ordinary and exponential dichotomies are defined in differential equations with equations with piecewise constant argument of general type. We prove the asymptotic equivalence between the bounded solutions of a linear system and a pert
Externí odkaz:
http://arxiv.org/abs/1508.06154
Publikováno v:
In Nonlinear Analysis: Real World Applications October 2020 55