Zobrazeno 1 - 10
of 4 513
pro vyhledávání: '"poincaré map"'
Publikováno v:
AIMS Mathematics, Vol 9, Iss 10, Pp 28560-28588 (2024)
In this study, changes in westerly waves and their connections to increased global warming under the influence of greenhouse gases were investigated via a Caputo fractional four-dimensional atmospheric system. The idea of the existence of chaotic beh
Externí odkaz:
https://doaj.org/article/cf15f97b07c14b2883c02252f376a47c
Autor:
Zhanhao Zhang, Yuan Tian
Publikováno v:
AIMS Mathematics, Vol 9, Iss 9, Pp 24271-24296 (2024)
Integrated pest management is a pest control strategy that combines biological and chemical methods to reduce environmental pollution and protect biodiversity. Recent research indicated that the fear caused by predators had a significant effect on th
Externí odkaz:
https://doaj.org/article/7f612a58330441ce9febb7246af08ea8
Autor:
Mark Olenik, Conor Houghton
Publikováno v:
Frontiers in Applied Mathematics and Statistics, Vol 10 (2024)
Externí odkaz:
https://doaj.org/article/dfa68fb334d9402fa57e67d6372b3098
Autor:
Liping Wu, Zhongyi Xiang
Publikováno v:
AIMS Mathematics, Vol 9, Iss 5, Pp 10659-10678 (2024)
The concept of an action threshold that depends on predator density and the rate of change is relatively novel and can engender new ideas among scholars studying predator-prey systems more effectively than earlier concepts. On this basis, a predator-
Externí odkaz:
https://doaj.org/article/bba927f4a32d468b996d8c934f64a4e3
Autor:
Shuai Chen
Publikováno v:
AIMS Mathematics, Vol 9, Iss 3, Pp 7426-7448 (2024)
A nonsmooth ecological model was proposed and analyzed, focusing on IPM, state-dependent feedback control strategies, and anti-predator behavior. The main objective was to investigate the impact of anti-predator behavior on successful pest control, p
Externí odkaz:
https://doaj.org/article/0c6f8b6fc8e141f18966afc4485648e9
A state-dependent impulsive system with ratio-dependent action threshold for investigating SIR model
Publikováno v:
AIMS Mathematics, Vol 9, Iss 2, Pp 4781-4804 (2024)
In general, there is an imperative to amalgamate timely interventions and comprehensive measures for the efficacious control of infectious diseases. The deployment of such measures is intricately tied to the system's state and its transmission rate,
Externí odkaz:
https://doaj.org/article/9caff33bb1054cdebd37ac900c24e0d8
Publikováno v:
Electronic Research Archive, Vol 31, Iss 11, Pp 7040-7060 (2023)
A two-degree-of-freedom vehicle wheel-rail impact vibration system model is developed, and the equivalent impact stiffness and damping of the rail are fitted applying ABAQUS, taking into account the high and low irregularity generated by the welded j
Externí odkaz:
https://doaj.org/article/bc460074f2364503a69b3621f4534aa9
Publikováno v:
Mathematical Biosciences and Engineering, Vol 20, Iss 10, Pp 18861-18887 (2023)
The classic SIR model is often used to evaluate the effectiveness of controlling infectious diseases. Moreover, when adopting strategies such as isolation and vaccination based on changes in the size of susceptible populations and other states, it is
Externí odkaz:
https://doaj.org/article/87440af22e7a4d259a7cdaccb47de6ef
Publikováno v:
Nonlinear Analysis, Vol 29, Iss 2 (2024)
In this paper, we propose a class of predator–prey models with nonlinear state-dependent feedback control in the saturated state. The nonlinear state impulse control leads to a diversity of pulse and phase sets such that the Poincaré map built on
Externí odkaz:
https://doaj.org/article/1d6bbf7969784e3f8bab7dba8fe3ddff
Autor:
García Isaac A., Giné Jaume
Publikováno v:
Advances in Nonlinear Analysis, Vol 12, Iss 1, Pp 419-431 (2023)
We consider analytic families of planar vector fields depending analytically on the parameters in Λ\Lambda that guarantee the existence of a (may be degenerate and with characteristic directions) monodromic singularity. We characterize the structure
Externí odkaz:
https://doaj.org/article/2d99a574d9884791abd41a91e601bb3b