Results 71 to 80 of about 5,134 (164)
International Journal of Mathematics and Mathematical Sciences, Volume 2026, Issue 1, 2026.This paper proposes a compartmental mathematical model to study the transmission dynamics of coinfection and superinfection caused by HCV‐HIV. Initially, the model is analyzed without any control measure. The disease‐free and endemic equilibrium points are determined, and also their local and global stability is examined using the Direct Lyapunov ...
Burhanuddin Safi +3 more
wiley +1 more source
Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.Dysentery diarrhea remains a major public health challenge in low‐resource settings. This study develops a novel SITR‐B model that integrates treatment pathways, treatment failure, and environmental transmission. The model incorporates logistic bacterial growth and dual decay mechanisms, providing a realistic representation of pathogen dynamics ...
Hailu Tkue Welu +5 more
wiley +1 more source
An experimental study of the efficiency of optimal control for lifting machines [PDF]
, 2019 The article is devoted to the synthesis of optimal speed performance control, in which the Pontryagin maximum principle and the phase-plane method are used to search for switching points of the relay control function.
Anishchenko, Galina +4 more
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Analysis of a Mathematical Model on the Dynamics of TB–HCV Coinfection With Medication
Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.This study employs a deterministic model that describes the combined dynamics of TB and HCV aimed at determining the impact of medication in the management of TB–HCV coinfection. The analytical and numerical analyses indicate that if the TB–HCV coinfection effective reproduction number is less than unity, the absence of both TB and HCV infections ...
Kizito Mohammed +3 more
wiley +1 more source
Journal of Mathematics, Volume 2026, Issue 1, 2026.This study addresses the limitation of traditional integer‐order crime models that fail to capture memory‐dependent dynamics in criminal behavior. Our objective is to develop and analyze a novel fractional‐order model incorporating media influence, police force, and rehabilitation strategies using the Liouville−Caputo derivative.
Waleed Adel +4 more
wiley +1 more source
TWO-POINT BOUNDARY PROBLEM SOLUTION BY NON-GRADIENT RANDOM SEARCH METHOD
Системный анализ и прикладная информатика, 2016 The numerical solution of two-point boundary problem when determining optimal control of dynamical system by means of Pontryagin’s maximum principle is considered. The initial conditions of conjugate set of equations are determined by use of non-gradient
V. A. Malkin
doaj
Optimal control of a delayed smoking model with immigration
Journal of Biological Dynamics, 2019 In this paper, we formulate a smoking model with delay and immigration, and the possibility of optimal controls both over the susceptible and heavy problem smoker subjects is assumed. The existence of the optimal control pair is also proved.
Caixia Sun, Jianwen Jia
doaj +1 more source
Mathematics OpenThis study focuses on campylobacteriosis, a common bacterial infection caused by Campylobacter species. The disease is primarily transmitted through contaminated food and water.
Furaha Michael Chuma +1 more
doaj +1 more source
Optimal Control Strategies in an Alcoholism Model
Abstract and Applied Analysis, 2014 This paper presents a deterministic SATQ-type mathematical model (including susceptible, alcoholism, treating, and quitting compartments) for the spread of alcoholism with two control strategies to gain insights into this increasingly concerned about ...
Xun-Yang Wang +3 more
doaj +1 more source
Time Optimal Hybrid Sliding Mode-PI Control for an Autonomous Underwater Robot
International Journal of Advanced Robotic Systems, 2008 This paper presents an underwater robot control system using combination principle among sliding mode control (SMC), Pontryagin maximum principle and linear PI control.
Theerayuth Chatchanayuenyong +1 more
doaj +2 more sources