Zobrazeno 1 - 10
of 27 081
pro vyhledávání: '"hopf bifurcation."'
Autor:
Ruiqing Shi, Yihong Zhang
Publikováno v:
Alexandria Engineering Journal, Vol 108, Iss , Pp 70-88 (2024)
In this paper, a fractional order HIV model with saturated incidence rate and time delay is proposed and analyzed. Firstly, the existence and uniqueness of positive solutions are proved. Secondly, the basic reproduction number and the sufficient cond
Externí odkaz:
https://doaj.org/article/4785159463594e86b79e717e64b7e0c5
Autor:
Zhang Huiwen, Jin Dan
Publikováno v:
Open Mathematics, Vol 22, Iss 1, Pp 2582-2609 (2024)
In this article, a diffusive predator-prey model with memory effect and predation-driven Allee effect is considered. Through eigenvalue analysis, the local asymptotic stability of positive constant steady-state solutions is analyzed, and it is found
Externí odkaz:
https://doaj.org/article/afeb5fa7362b4c7c98297add38daa108
Autor:
Jing Zhang, Shengmao Fu
Publikováno v:
AIMS Mathematics, Vol 9, Iss 11, Pp 32514-32551 (2024)
In this paper, the dynamic behavior of a diffusive Rosenzweig-MacArthur (R-M) predator-prey model with hyperbolic tangent functional response and fear effect was investigated. For the local system, we gave a detailed classification of equilibria and
Externí odkaz:
https://doaj.org/article/02b42eb719304f3893d461ef96bfc930
Publikováno v:
AIMS Mathematics, Vol 9, Iss 11, Pp 30263-30297 (2024)
The dynamics of an ordinary differential equations (ODEs) system modelling the interaction of four species (one prey or resource population, two mesopredator populations, and one super-predator population) was analyzed. It was assumed that the functi
Externí odkaz:
https://doaj.org/article/1ad2d02a142042348853b4e3f57e6dcf
Publikováno v:
AIMS Mathematics, Vol 9, Iss 11, Pp 29883-29915 (2024)
In this current paper, we developed a new predator-prey model accompanying delay based on the earlier works. By applying inequality strategies, fixed point theorem, and a suitable function, we got new necessary conditions for the existence, uniquenes
Externí odkaz:
https://doaj.org/article/be828e4346464087810323a1f33fe4a0
Publikováno v:
AIMS Mathematics, Vol 9, Iss 10, Pp 29608-29632 (2024)
A delayed diffusive predator-prey system with nonmonotonic functional response subject to Neumann boundary conditions is introduced in this paper. First, we analyze the associated characteristic equation to research the conditions for local stability
Externí odkaz:
https://doaj.org/article/c4cf8d99cdb64c4398d587a44c27b2d0
Autor:
Fathalla A. Rihan, K. Udhayakumar
Publikováno v:
Alexandria Engineering Journal, Vol 114, Iss , Pp 243-255 (2025)
This paper proposes a delay differential model with fractional order for glucose-insulin endocrine, metabolic regulation model, incorporating beta-cell dynamics to regulate and maintain bloodstream insulin concentration. In the model, two time delays
Externí odkaz:
https://doaj.org/article/9624cdeb463d4a3db681bd082724e0b5