Results 11 to 20 of about 8,838,748 (258)

Local stability of an open-access anchovy fishery model [PDF]

Computational Ecology and Software, 2015
In this paper, we study the qualitative behavior of following open-access anchovy fishery model: xn+1=axnb-d α xvnyn, yn+1=yn(η(pαxvn-c)+1), where a,b,c,d,v,p,α, η, and the initial conditions x0, y0 are positive real numbers.
M. N. Qureshi, A. Q. Khan
doaj   +1 more source

Guidelines on sustainable mobility : shared transport [PDF]

, 2023
This is the fourth published guideline document, in a series of documents which are being published under the Resident First project headed by the Local Councils’ Association (LCA) and endorsed by all Local Councils in Malta and Gozo.
Zammit, Antoine, Local Councils' Association   +1 more
core  

Eradication Conditions of Infected Cell Populations in the 7-Order HIV Model with Viral Mutations and Related Results

Mathematics, 2021
In this paper, we study possibilities of eradication of populations at an early stage of a patient’s infection in the framework of the seven-order Stengel model with 11 model parameters and four treatment parameters describing the interactions of wild ...
Konstantin E. Starkov, Anatoly N. Kanatnikov   +1 more
doaj   +1 more source

On the Dynamics of the Logistic Delay Differential Equation with ‎Two Different Delays [PDF]

Journal of Applied and Computational Mechanics, 2021
Here, we study the logistic delay differential equation with two different delays. First of all, we disscuse the local stability and Hopf bifurcation conditons. The method of steps is used to get a discretized analogue of the original system.
Ahmed El-Sayed, Sanaa Salman, Ali Abo-Bakr   +2 more
doaj   +1 more source

Analysis of the Convergence and Periodicity of a Rational Difference Equation

Journal of Mathematical Sciences and Modelling, 2019
The exact solutions of most difference equations cannot be obtained sometimes. This can be attributed to the fact that there is no a specific approach from which one can find the exact solution.
Mohammed Almatrafi, Marwa Alzubaidi
doaj   +1 more source

Qualitative analysis of a mathematical model about population of green turtles on the Galapagos island

Biomath, 2021
According to the IUCN, most sea turtles fall into one of the endangered categories. Since, sea turtles, like many other reptiles, present an unusual developmental process, marked by the determination of the sex of the offspring by environmental factors ...
Candy Herrera, Cosme Ramon Duque, Hugo Leiva   +2 more
doaj   +1 more source

Frente : Órgano de la Junta Local del Frente Sindicalista Revolucionario de Madrid: Año I Número 1 - 1968 julio

, 1968
Copia digital. España : Ministerio de Cultura y Deporte.
Frente Sindicalista Revolucionario de Madrid. Junta Local
core   +2 more sources

Open Problems and Conjectures in the Evolutionary Periodic Ricker Competition Model

Axioms
In this paper, we present a survey about the latest results in global stability concerning the discrete-time evolutionary Ricker competition model with n species, in both, autonomous and periodic models.
Rafael Luís
doaj   +1 more source

A small continuous-Time macroeconometrics model of Iran (Structural Analysis) [PDF]

مدیریت بهره وری, 2008
This paper presents a continuous time macro-econometrics model for Iranian economy during 1338-1383. In this regard a relatively small size continuous time macro-econometric model, and simultaneous equation systems with eight differential equations and ...
Roya Alleomran, Hamedreza Baradaranshoraka   +1 more
doaj  

Analytical Study of Nonlinear Systems of Higher-Order Difference Equations: Solutions, Stability, and Numerical Simulations

Mathematics
This paper aims to derive analytical expressions for solutions of fractional bidimensional systems of difference equations with higher-order terms under specific parametric conditions. Additionally, formulations of solutions for one-dimensional equations
Hashem Althagafi, Ahmed Ghezal
doaj   +1 more source