Results 41 to 50 of about 909 (172)

The Local Bifurcation of Food web Prey-Predator Model involving fear and anti-Predator behavior

Ibn Al-Haitham Journal for Pure and Applied Sciences
     In this paper, the conditions under which the occurrence of the local bifurcation (such as saddle-node (SN), transcritical (TC), and pitchfork (PT)) of all stable points of a food web model have been investigated.
Hanna Rasool Hadi, Azhar Abbas Majeed
doaj   +1 more source

Population Dynamic Study of Prey-Predator Interactions with Weak Allee Effect, Fear Effect, and Delay

Journal of Mathematics, 2022
In this study, a predator-prey model with the Allee effect and fear effect is established. We use the comparison principle to prove boundedness. The zero equilibrium point and nonzero equilibrium point of the model are calculated, and the local stability
Ye Xuan Li, Hua Liu, Yu Mei Wei, Ming Ma, Gang Ma, Jing Yan Ma   +5 more
doaj   +1 more source

Bifurkasi Pada Model Penyebaran Penyakit MERS-CoV di Dua Wilayah dengan Populasi Konstan

Jambura Journal of Mathematics, 2022
Middle East Respiratory Syndrome Coronavirus (MERS-CoV) is caused by a novel coronavirus and it can be a human-to-human transmission disease. World Health Organization (WHO) reported the disease outbreak first happened in Saudi Arabia in 2012 and the ...
Livia Owen
doaj   +1 more source

T(w)o Patch or Not T(w)o Patch: A Novel Biocontrol Model

Mathematical Methods in the Applied Sciences, Volume 49, Issue 13, Page 14697-14743, 15 September 2026.
ABSTRACT A number of top‐down biocontrol models have been proposed where the introduced predators' efficacy is enhanced via the provision of additional food (AF). However, if the predator has a pest‐dependent monotone functional response, pest extinction is unattainable. In the current manuscript, we propose a model where a predator with pest‐dependent
Urvashi Verma, Aniket Banerjee, Rana D. Parshad   +2 more
wiley   +1 more source

Bifurcation of Solution in Singularly Perturbed ODEs by Using Lyapunov Schmidt Reduction

مجلة علوم ذي قار, 2019
This paper aims to study the bifurcation of solution in singularly perturbed ODEs:                                     the hypothesis                                                                                      the bifurcation of ...
A. H.Kamil, K. H. Yasir
doaj   +4 more sources

ANALYSIS OF BANKING DEPOSIT COST IN THE DYNAMICS OF LOAN: BIFURCATION AND CHAOS PERSPECTIVES

Barekeng, 2022
A dynamic model of banking loan based on the gradient adjustment process is presented. The amount of loan that will be channeled in the future depends on the sign of the marginal profit of loan. In this paper, we study the deposit cost in the dynamics of
Moch. Fandi Ansori, Susilo Hariyanto
doaj   +1 more source

Fully Coupled Electromagnetic‐Thermal‐Mechanical Model for Induction Heating of Thin Steel Sheets With the Presence of Thermal Buckling

International Journal for Numerical Methods in Engineering, Volume 127, Issue 16, 30 August 2026.
ABSTRACT Large deformations can become an important issue in induction heating applications, especially for structures with low bending stiffness, such as thin sheets. In such cases, thermal expansion induces not only substantial in‐plane stresses but also out‐of‐plane buckling, which in turn strongly influences the electromagnetic field configuration.
Vladimir Filkin, Yury Vetyukov, Florian Toth   +2 more
wiley   +1 more source

Analyzing Bifurcations and Optimal Control Strategies in SIRS Epidemic Models: Insights from Theory and COVID-19 Data

Mathematical and Computational Applications
This study investigates the dynamic behavior of an SIRS epidemic model in discrete time, focusing primarily on mathematical analysis. We identify two equilibrium points, disease-free and endemic, with our main focus on the stability of the endemic state.
Mohamed Cherif Belili, Mohamed Lamine Sahari, Omar Kebiri, Halim Zeghdoudi   +3 more
doaj   +1 more source

Inferring alternative ecosystem states with field survey data

Methods in Ecology and Evolution, Volume 17, Issue 8, Page 2256-2276, August 2026.
Abstract Many ecosystems potentially exhibit alternative stable states, where distinct states can coexist under identical environmental conditions. While simulation models have generated key hypotheses in alternative stable states theory, they often rely on scale‐free parameters disconnected from real ecosystems.
Ning Chen, Xiaoxue Dong, Xinwei Li, Lei Huang, Heng Huang, Changjia Li, Yanchuang Zhao, Chi Xu, Miaojun Ma, Zak Ratajczak, Changming Zhao   +10 more
wiley   +1 more source

The Role of Inducible Defence in Ecological Models: Effects of Nonlocal Intraspecific Competition

Studies in Applied Mathematics, Volume 156, Issue 6, June 2026.
ABSTRACT Phenotypic plasticity significantly influences species interactions, especially via inducible defensive mechanisms in predator–prey dynamics. This work proposes and explores a predator–prey scenario whereby the prey species demonstrates inducible defence mechanisms against predators.
Sangeeta Saha, Swadesh Pal, Roderick Melnik   +2 more
wiley   +1 more source