Results 11 to 20 of about 320,166 (174)

Fourth-Order Numerical Solutions for a Fuzzy Time-Fractional Convection–Diffusion Equation under Caputo Generalized Hukuhara Derivative

open access: yesFractal and Fractional, 2022
The fuzzy fractional differential equation explains more complex real-world phenomena than the fractional differential equation does. Therefore, numerous techniques have been timely derived to solve various fractional time-dependent models. In this paper,
Hamzeh Zureigat   +4 more
doaj   +2 more sources

Generalized Hukuhara-Clarke Derivative of Interval-valued Functions and its Properties [PDF]

open access: yesSoft Computing, 2021
Abstract This paper is devoted to the study of gH-Clarke derivative for interval-valued functions. To develop the properties of gH-Clarke derivative, the concepts of limit superior, limit inferior, and sublinear interval-valued functions are studied in the sequel.
Ram Surat Chauhan   +3 more
openaire   +2 more sources

A Method for Solving Linear Systems of Fuzzy Differential Equations under Generalized Hukuhara Differentiability

open access: yesFuzzy Optimization and Modeling, 2023
The paper proposes a procedure for solving a linear system of fuzzy differential equations from the point of view of the generalized Hukuhara derivative. First, the method is based on two functions of half-length and midpoint of fuzzy numbers and next it
Mehran Chehlabi   +1 more
doaj   +1 more source

Derivative observations in Gaussian Process models of dynamic systems [PDF]

open access: yes, 2003
Gaussian processes provide an approach to nonparametric modelling which allows a straightforward combination of function and derivative observations in an empirical model.
Rasmussen, C.E.   +4 more
core   +8 more sources

Numerical Treatment of Hybrid Fuzzy Differential Equations Subject to Trapezoidal and Triangular Fuzzy Initial Conditions Using Picard’s and the General Linear Method

open access: yesComputation, 2022
We study hybrid fuzzy differential equations (HFDEs) under the Hukuhara derivative numerically using Picard’s and the general linear method (GLM). We use trapezoidal and triangular fuzzy numbers as the initial conditions. To demonstrate the efficiency of
Saed Mallak, Basem Attili, Marah Subuh
doaj   +1 more source

Numerical Investigation of Fuzzy Predator-Prey Model with a Functional Response of the Form Arctan(ax)

open access: yesMathematics, 2021
In this paper we study a fuzzy predator-prey model with functional response arctan(ax). The fuzzy derivatives are approximated using the generalized Hukuhara derivative. To execute the numerical simulation, we use the fuzzy Runge-Kutta method.
Saed Mallak   +2 more
doaj   +1 more source

Generalized Hukuhara Conformable Fractional Derivative and its Application to Fuzzy Fractional Partial DifferentialEquations [PDF]

open access: yesSoft Computing, 2021
Abstract The main focus of this paper is to develop an efficient analytical method to obtain the traveling wave fuzzy solution for the fuzzy generalized Hukuhara conformable fractional equations by considering the type of generalized Hukuhara conformable fractional differentiability of the solution.
Manizheh Ghaffari   +3 more
openaire   +3 more sources

Fractional-like Hukuhara derivative and its properties [PDF]

open access: yes, 2019
Вводится понятие дробно-подобной производной Хукухары для многозначного отображения, обсуждаются ее свойства и приводится принцип сравнения для дробно-подобных многозначных дифференциальных уравнений.Вводиться поняття дробово-подібної похідної Хукухари ...
Мартынюк, А.А.
core   +1 more source

Dynamical behavior of HIV infection in fuzzy environment

open access: yesResults in Control and Optimization, 2023
The fuzziness of the parameters of any mathematical model is a major concern today in the field of epidemiology. In this article we apply the technique of Hukuhara derivative for mathematical formulation of HIV infection with CD4+T cell.
Nikhilesh Sil   +2 more
doaj   +1 more source

On Extended Lr-Norm-Based Derivatives to Intuitionistic Fuzzy Sets

open access: yesMathematics, 2023
The study of differential equation theory has come a long way, with applications in various fields. In 1961, Zygmund and Calderón introduced the notion of derivatives to metric Lr, which proved to be better in applications than approximate derivatives ...
A. S. Wungreiphi   +2 more
doaj   +1 more source

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