Results 41 to 50 of about 388 (128)

Analysis of a fractional-order model for acute and chronic hepatitis-B transmission with Mittag-Leffler kernels

open access: yesComputational and Mathematical Biophysics
This study explores the dynamic characteristics of a fractional-order model for the hepatitis B virus (HBV) epidemic. We present the existence, uniqueness, and Ulam-Hyers stability of solutions for a fractional-order HBV model utilizing the Atangana ...
Wiah Eric Neebo   +3 more
doaj   +1 more source

Global properties of virus dynamics with B-cell impairment

open access: yesOpen Mathematics, 2019
In this paper we construct a class of virus dynamics models with impairment of B-cell functions. Two forms of the incidence rate have been considered, saturated and general. The well-posedness of the models is justified.
Elaiw Ahmed M.   +2 more
doaj   +1 more source

Influence of media campaigns efforts to control spread of COVID-19 pandemic with vaccination: A modeling study

open access: yesComputational and Mathematical Biophysics
The outbreak of coronavirus disease 2019 (COVID-19) has been declared a pandemic by the world health organization on March 11, 2020,. Here, a nonlinear mathematical model is proposed and analyzed to study the spread of coronavirus disease in a human ...
Verma Sandhya Rani   +4 more
doaj   +1 more source

Global stability of a distributed delayed viral model with general incidence rate

open access: yesOpen Mathematics, 2018
In this paper, we discussed a infinitely distributed delayed viral infection model with nonlinear immune response and general incidence rate. We proved the existence and uniqueness of the equilibria.
Ávila-Vales Eric   +2 more
doaj   +1 more source

Stability property of the prey free equilibrium point

open access: yesOpen Mathematics, 2019
We revisit a prey-predator model with stage structure for predator, which was proposed by Tapan Kumar Kar. By using the differential inequality theory and the comparison theorem of the differential equation, we show that the prey free equilibrium is ...
Yue Qin
doaj   +1 more source

Mathematical model on influence of past experiences on present activities of human brain

open access: yesComputational and Mathematical Biophysics
This article explores how emotional feelings linked to stored memories of past experiences influence the present activity of the human brain. To analyse this, a mathematical model is considered describing the dynamics in a two-layered network in which ...
Rao P. Raja Sekhara   +2 more
doaj   +1 more source

Global stability of the coexistence equilibrium for a general class of models of facultative mutualism [PDF]

open access: yes, 2017
Many models of mutualism have been proposed and studied individually. In this paper, we develop a general class of models of facultative mutualism that covers many of such published models. Using mild assumptions on the growth and self-limiting functions,
Berec, Ludek   +3 more
core   +1 more source

Stability of the global attractor under Markov-Wasserstein noise [PDF]

open access: yes, 2011
We develop a "weak Wa\.zewski principle" for discrete and continuous time dynamical systems on metric spaces having a weaker topology to show that attractors can be continued in a weak sense.
Kell, Martin
core  

On a predator-prey system interaction under fluctuating water level with nonselective harvesting

open access: yesOpen Mathematics, 2020
A predator-prey model interaction under fluctuating water level with non-selective harvesting is proposed and studied in this paper. Sufficient conditions for the permanence of two populations and the extinction of predator population are provided.
Zhang Na   +4 more
doaj   +1 more source

Optimal control and bifurcation analysis of SEIHR model for COVID-19 with vaccination strategies and mask efficiency

open access: yesComputational and Mathematical Biophysics
In this article, we present a susceptible, exposed, infected, hospitalized and recovered compartmental model for COVID-19 with vaccination strategies and mask efficiency. Initially, we established the positivity and boundedness of the solutions to ensure
Muthu Poosan Moopanar   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy