Results 61 to 70 of about 707 (130)

Some nonlinear inequalities and applications [PDF]

open access: yes, 2010
Sufficient conditions are given for the relation $\lim_{t\to\infty}y(t) = 0$ to hold, where $y(t)$ is a continuous nonnegative function on $[0,1)$ satisfying some nonlinear inequalities.
Hoang, N. S., Ramm, A. G.
core   +4 more sources

A singular M-matrix perturbed by a nonnegative rank one matrix has positive principal minors; is it D-stable?

open access: yes, 2014
The positive stability and D-stability of singular M-matrices, perturbed by (non-trivial) nonnegative rank one perturbations, is investigated. In special cases positive stability or D-stability can be established. In full generality this is not the case,
Bierkens, Joris, Ran, André
core   +2 more sources

Almost periodic solutions of a commensalism system with Michaelis-Menten type harvesting on time scales

open access: yesOpen Mathematics, 2019
In this paper, we consider an almost periodic commensal symbiosis model with nonlinear harvesting on time scales. We establish a criterion for the existence and uniformly asymptotic stability of unique positive almost periodic solution of the system. Our
Xue Yalong, Xie Xiangdong, Lin Qifa
doaj   +1 more source

On Lr-norm-based derivatives and fuzzy Henstock-Kurzweil integrals with an application

open access: yesAlexandria Engineering Journal, 2023
The fundamental theorem of calculus not only plays an important role in the study of differential equation theory, but also in many practical problems solving.
Yabin Shao, Yubing Li, Zengtai Gong
doaj   +1 more source

Numerical Integration of Lattice Systems with a Lyapunov Function [PDF]

open access: yes, 2014
In this contribution we implement and assess numerical methods for gradient systems, i.e. dynamical systems that possess a Lyapunov function, and consequently are stable. In particular, we claim that discrete gradient methods are well suited to so-called
Atencia-Ruiz, Miguel Alejandro   +1 more
core  

Extinction of a two species non-autonomous competitive system with Beddington-DeAngelis functional response and the effect of toxic substances

open access: yesOpen Mathematics, 2016
A two species non-autonomous competitive phytoplankton system with Beddington-DeAngelis functional response and the effect of toxic substances is proposed and studied in this paper.
Chen Fengde   +2 more
doaj   +1 more source

Stability of a secondary dengue viral infection model with multi-target cells

open access: yesAlexandria Engineering Journal, 2022
Dengue is one of the vector-borne diseases spread in most parts of the world. The number of infected individuals is increased each year. This paper proposes a mathematical model describing the secondary dengue viral infection in micro-environment.
M.A. Alshaikh   +2 more
doaj   +1 more source

A bare-bones mathematical model of radicalization

open access: yes, 2014
Radicalization is the process by which people come to adopt increasingly extreme political or religious ideologies. While radical thinking is by no means problematic in itself, it becomes a threat to national security when it leads to violence.
McCluskey, Connell, Santoprete, Manuele
core   +5 more sources

Classical and fractional analysis of the effects of Silicosis in a Mining Community

open access: yesAlexandria Engineering Journal, 2020
A mathematical model for the transmission dynamics of silicosis in a mining environment is designed and its qualitative analysis is given. The model takes into account the severity of silica dust exposure in a mining environment.
H.M. Tenkam   +5 more
doaj   +1 more source

On the minimum exit rate for a diffusion process pertaining to a chain of distributed control systems with random perturbations [PDF]

open access: yes, 2014
In this paper, we consider the problem of minimizing the exit rate with which a diffusion process pertaining to a chain of distributed control systems, with random perturbations, exits from a given bounded open domain.
Getachew K. Befekadu   +2 more
core  

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