Results 11 to 20 of about 2,502,460 (317)

Handling equivalence classes of Optimality-Theoretic tableaux

Journal of Language Modelling, 2015
Many Optimality-Theoretic tableaux contain exactly the same information, and equivalence-preserving operations on them have been an object of study for some two decades.
Igor Yanovich
doaj   +1 more source

DESAIN KONTROL PENGOBATAN PADA MODEL SIRD UNTUK PENYEBARAN VIRUS COVID-19 MENGGUNAKAN BACKSTEPPING

Barekeng, 2021
In this article, we present a control design on a SIRD model with treatment in infected individuals. The SIRD model with treatment is obtained from literature study and the parameter model is obtained  from covid-19 daily case in the Riau province using ...
Khozin Mu'tamar, Janson Naiborhu, Roberd Saragih   +2 more
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Turing–Hopf bifurcation and spatiotemporal patterns in a Gierer–Meinhardt system with gene expression delay

Nonlinear Analysis, 2021
In this paper, we consider the dynamics of delayed Gierer–Meinhardt system, which is used as a classic example to explain the mechanism of pattern formation. The conditions for the occurrence of Turing, Hopf and Turing–Hopf bifurcation are established by
Shuangrui Zhao, Hongbin Wang, Weihua Jiang   +2 more
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Global stability and bifurcation analysis of a delayed predator-prey system with prey immigration

Electronic Journal of Qualitative Theory of Differential Equations, 2016
A delayed predator-prey system with a constant rate immigration is considered. Local and global stability of the equilibria are studied, a fixed point bifurcation appears near the boundary equilibrium and Hopf bifurcation occurs near the positive ...
Gang Zhu, Junjie Wei
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Mathematical Modeling and Stability Analysis of a Delayed Carbon Absorption-Emission Model Associated with China’s Adjustment of Industrial Structure

Mathematics, 2022
Global warming has brought about enormous damage, therefore, some scholars have begun to conduct in-depth research on peak carbon dioxide emissions and carbon neutrality.
Leilei Han, Haokun Sui, Yuting Ding
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Stability and Hopf-bifurcation analysis of an unidirectionally coupled system

Electronic Journal of Qualitative Theory of Differential Equations, 2011
In this paper, the stability and existence of periodic solutions for an unidirectionally coupled nonlinear system with delays are investigated by combining the linear stability theory and the embedding technique of asymptotically autonomous semiflows ...
Gang Zhu, Junjie Wei
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Spatiotemporal dynamics of a diffusive predator-prey model with delay and Allee effect in predator

Mathematical Biosciences and Engineering, 2023
It has been shown that Allee effect can change predator-prey dynamics and impact species persistence. Allee effect in the prey population has been widely investigated. However, the study on the Allee effect in the predator population is rare.
Fang Liu, Yanfei Du
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Gevrey-smoothness of lower dimensional hyperbolic invariant tori for nearly integrable symplectic mappings

Journal of Inequalities and Applications, 2017
This paper provides a normal form for a class of lower dimensional hyperbolic invariant tori of nearly integrable symplectic mappings with generating functions.
Shunjun Jiang
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Dynamic analysis of a Leslie–Gower-type predator–prey system with the fear effect and ratio-dependent Holling III functional response

Nonlinear Analysis, 2022
In this paper, we extend a Leslie–Gower-type predator–prey system with ratio-dependent Holling III functional response considering the cost of antipredator defence due to fear.
Hongyu Chen, Chunrui Zhang
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Mathematical modeling and stability analysis of the time-delayed SAIM model for COVID-19 vaccination and media coverage

Mathematical Biosciences and Engineering, 2022
Since the COVID-19 outbreak began in early 2020, it has spread rapidly and threatened public health worldwide. Vaccination is an effective way to control the epidemic. In this paper, we model a SAIM equation.
Xinyu Liu, Zimeng Lv, Yuting Ding
doaj   +1 more source