Results 11 to 20 of about 4,738,629 (286)

Analysis of logistic equation pertaining to a new fractional derivative with non-singular kernel

open access: yesAdvances in Mechanical Engineering, 2017
In this work, we aim to analyze the logistic equation with a new derivative of fractional order termed in Caputo–Fabrizio sense. The logistic equation describes the population growth of species. The existence of the solution is shown with the help of the
Devendra Kumar   +2 more
exaly   +2 more sources

On an Anisotropic Logistic Equation

open access: yesMathematics
We consider a nonlinear Dirichlet problem driven by the (p(z),q)-Laplacian and with a logistic reaction of the equidiffusive type. Under a nonlinearity condition on a quotient map, we show existence and uniqueness of positive solutions and the result is ...
Leszek Gasiński   +1 more
doaj   +2 more sources

On fuzzy uncertainties on the logistic equation

open access: yesFuzzy Sets and Systems, 2017
It is recognized that handling uncertainty is essential to obtain more reliable results in modeling and computer simulation. This paper aims to discuss the logistic equation subject to fuzzy uncertainties in the initial conditions and parameters. Here we
M. Cecconello, F. A. Dorini, G. Haeser
semanticscholar   +3 more sources

The logistic equation in the context of Stieltjes differential and integral equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
In this paper, we introduce logistic equations with Stieltjes derivatives and provide explicit solution formulas. As an application, we present a population model which involves intraspecific competition, periods of hibernation, as well as seasonal ...
Ignacio Márquez Albés   +1 more
doaj   +4 more sources

The perfect mixing paradox and the logistic equation: Verhulst vs. Lotka

open access: yesEcosphere, 2016
A theoretical analysis of density‐dependent population dynamics in two patches sheds novel light on our understanding of basic ecological parameters. Firstly, as already highlighted in the literature, the use of the traditional r‐K parameterization for ...
Roger Arditi   +2 more
doaj   +2 more sources

On the logistic equation for the fractional p‐Laplacian [PDF]

open access: yesMathematische Nachrichten, 2021
We consider a Dirichlet problem for a nonlinear, nonlocal equation driven by the degenerate fractional p‐Laplacian, with a logistic‐type reaction depending on a positive parameter.
A. Iannizzotto   +2 more
semanticscholar   +1 more source

Global Dynamics of Generalized Logistic Equations

open access: yesAdvanced Nonlinear Studies, 2018
We consider a parameter dependent parabolic logistic population model with diffusion and degenerate logistic term allowing for refuges for the population.
Daners Daniel, López-Gómez Julián
doaj   +3 more sources

Power series solution of the fractional logistic equation

open access: yesPhysica A: Statistical Mechanics and its Applications, 2021
Using a series of fractional powers we present a representation of the solution to the fractional logistic equation is presented. To simplify we consider the simplest case and prove that the power series is indeed the exact solution.
I. Area, J. Nieto
semanticscholar   +1 more source

Quasinormal Forms for Chains of Coupled Logistic Equations with Delay

open access: yesMathematics, 2022
In this paper, chains of coupled logistic equations with delay are considered, and the local dynamics of these chains is investigated. A basic assumption is that the number of elements in the chain is large enough.
Sergey Kashchenko
doaj   +1 more source

Logistic Wavelets and Their Application to Model the Spread of COVID-19 Pandemic

open access: yesApplied Sciences, 2021
In the present paper, we model the cumulative number of persons, reported to be infected with COVID-19 virus, by a sum of several logistic functions (the so-called multilogistic function).
Grzegorz Rza̧dkowski, Giuseppe Figlia
doaj   +1 more source

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