Results 21 to 30 of about 2,635,700 (282)

Fuzzy solutions of some variants of the fractional order Korteweg-de-Vries equations via an analytical method

open access: yesAlexandria Engineering Journal, 2023
Under uncertainty, the analytical behaviour of fractional partial differential equations is frequently puzzling and challenging to predict. Therefore, in order to address these problems, it is essential to create a proper, extensive, and highly effective
Muhammad Nadeem   +3 more
doaj   +1 more source

Novel Analysis of Fuzzy Fractional Emden-Fowler Equations within New Iterative Transform Method

open access: yesJournal of Function Spaces, 2022
The analytical behavior of fractional differential equations is often puzzling and difficult to predict under uncertainty. It is crucial to develop a robust, extensive, and extremely successful theory to address these problems.
M. Mossa Al-Sawalha   +3 more
doaj   +1 more source

A Fuzzy Method for Solving Fuzzy Fractional Differential Equations Based on the Generalized Fuzzy Taylor Expansion

open access: yesMathematics, 2020
In this field of research, in order to solve fuzzy fractional differential equations, they are normally transformed to their corresponding crisp problems. This transformation is called the embedding method.
Tofigh Allahviranloo   +3 more
doaj   +1 more source

Boundary Value Problems for a Class of First-Order Fuzzy Delay Differential Equations

open access: yes, 2020
In this paper, we study a class of fuzzy differential equations with variable boundary value conditions. Applying the upper and lower solutions method and the monotone iterative technique, we provide some sufficient conditions for the existence of ...
Hongzhou Wang
core   +1 more source

On the Analysis of Regularized Fuzzy Systems of Uncertain Differential Equations

open access: yesEntropy, 2023
This article analyzes a regularized set of fuzzy differential equations with respect to an uncertain parameter. We provide sufficient conditions for the correctness of a new regularization scheme.
Anatoliy Martynyuk   +3 more
doaj   +1 more source

Numerical methods for m-polar fuzzy initial value problems

open access: yes, 2023
Some problems in science and technology are modeled using ambiguous, imprecise, or lacking contextual data. In the modeling of some real-world problems, differential equations often involve multi-agent, multi-index, multi -objective, multi-attribute ...
Allahviranloo, Tofigh   +3 more
core   +1 more source

Fuzzy-Stochastic Partial Differential Equations [PDF]

open access: yesSIAM/ASA Journal on Uncertainty Quantification, 2019
31 ...
openaire   +3 more sources

Switching Point Solution of Second-Order Fuzzy Differential Equations Using Differential Transformation Method

open access: yesMathematics, 2019
The first-order fuzzy differential equation has two possible solutions depending on the definition of differentiability. The definition of differentiability changes as the product of the function and its first derivative changes its sign.
Nadeem Salamat   +2 more
doaj   +1 more source

Fuzzy solution of system of fuzzy fractional problems using a reliable method

open access: yesAlexandria Engineering Journal, 2022
Under uncertainty, the analytical behavior of fractional differential equations is frequently puzzling and difficult to predict. As a result, it's necessary to develop a suitable, comprehensive, and highly effective theory to solve these challenges.
Ehsan Ul Haq   +3 more
doaj   +1 more source

Higher-order finite-difference methods for partial differential equations [PDF]

open access: yes, 1997
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis develops two families of numerical methods, based upon rational approximations having distinct real poles, for solving first- and second-order ...
Cheema, Tasleem Akhter
core   +7 more sources

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