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This paper investigates the generalized Hukuhara differentiability of fuzzy number-valued functions on arbitrary time scales using delta calculus. By carefully examining and improving existing results, we develop a unified and complete…

General Mathematics · Mathematics 2025-07-08 Funda Raziye Mert , Selami Bayeğ

In this paper, we provide a comprehensive investigation of the generalized Hukuhara nabla derivative for fuzzy functions on time scales. We establish some characterizations of generalized Hukuhara nabla differentiable fuzzy functions on…

General Mathematics · Mathematics 2025-06-03 Funda Raziye Mert , Selami Bayeğ , Billur Kaymakçalan

We consider fuzzy valued functions from two parametric representations of $\alpha$-level sets. New concepts are introduced and compared with available notions. Following the two proposed approaches, we study fuzzy differential equations.…

General Mathematics · Mathematics 2024-07-29 Akbar H. Borzabadi , Mohammad Heidari , Delfim F. M. Torres

We introduce a new approach to study the practical stability of hybrid fuzzy systems on time scales in the Lyapunov sense. Our method is based on the delta-Hukuhara derivative for fuzzy valued functions and allow us to obtain new…

Classical Analysis and ODEs · Mathematics 2016-04-28 Omid S. Fard , Delfim F. M. Torres , Mohadeseh R. Zadeh

In this paper, we define generalized Hukuhara diamond-alpha integral for fuzzy functions on time scales and obtain some of its fundamental properties and also we establish the relationship between diamond-alpha differentiation and…

General Mathematics · Mathematics 2025-06-03 Selami Bayeğ , Funda Raziye Mert , Billur Kaymakçalan

This article deals with the complexity involved in fuzzy derivatives when both input and output are from nonempty, convex, and compact fuzzy space. Consider a fuzzy valued mapping, and for fuzzy differentiation of fuzzy valued function, we…

General Mathematics · Mathematics 2023-08-23 Purnima Pandit , Payal Singh

This article describes the fuzzy conformable fractional derivative which is based on generalized Hukuhara differentiability. On these topics, we prove a number of properties concerning this type of differentiability. In addition, fuzzy…

General Mathematics · Mathematics 2022-06-23 Hadi Eghlimi , Mohammad Sadegh Asgari

In this paper we provide new several Jackson-type approximations results for continuous fuzzy-number-valued functions which improve several previous ones. We use alternative techniques adapted from Interval Analysis which rely on the…

General Mathematics · Mathematics 2025-12-25 Juan J. Font , Sergio Macario

In this article, the concept of $\mu-$ monotonic property of interval-valued function in higher dimension is introduced. Expansion of interval-valued function in higher dimension is developed using this property. Generalized Hukuhara…

Optimization and Control · Mathematics 2019-02-28 Priyanka Roy , Geetanjali Panda

This paper proposes a new generalized Seikkala derivative (gS-derivative) of a fuzzy-valued function. We see that, there are many elementary fuzzy-valued functions which occur frequently as solution of fuzzy differential equation, are not…

General Mathematics · Mathematics 2018-12-13 U. M. Pirzada

In this article, we introduce a differentiability concept for fuzzy functions $\tilde{f}: F(\mathbb{R}) \to F(\mathbb{R})$, where $F(\mathbb{R})$ is the set of all fuzzy numbers. With the help of the proposed differentiability notion, we…

Optimization and Control · Mathematics 2019-10-08 U. M. Pirzada , Debdas Ghosh

In this paper, we present the concept of subdifferential for fuzzy n-cell number valued functions. Then we state some theorems related to subdifferentiability based on the new definition. Finally, we present some applications emphasized on…

Optimization and Control · Mathematics 2024-04-30 Samira Fatemi , Ildar Sadeqi , Fridoun Moradlou

In this article, the concepts of gH-subgradients and gH-subdifferentials of interval-valued functions are illustrated. Several important characteristics of the gH-subdifferential of a convex interval-valued function, e.g., closeness,…

Optimization and Control · Mathematics 2021-04-16 Amit Kumar Debnath , Debdas Ghosh , Radko Mesiar , Ram Surat Chauhan

In this paper we provide a general setting to deal with level continuous fuzzy-valued functions. Namely, we embed such functions into a product of spaces of real-valued functions of two variables satisfying certain types of left-continuity,…

General Mathematics · Mathematics 2026-03-31 J. J. Font , S. Macario , M. Sanchis

In this paper, we consider the system of linear equations $Ax=b$, where $A\in \Bbb{R}^{n \times n}$ is a crisp H-matrix and $b$ is a fuzzy $n$-vector. We then investigate the existence and uniqueness of a fuzzy solution to this system. The…

Numerical Analysis · Mathematics 2015-03-30 Davod Khojasteh Salkuyeh

This article presents a theory of differential and integral calculus for mapping between Banach spaces formed by subsets of fuzzy numbers called A-linearly correlated fuzzy numbers, where both the domain and codomain are spaces composed of…

General Mathematics · Mathematics 2025-03-12 Laécio Carvalho de Barros , Estevão Esmi , Francielle Santo Pedro Simões , Mina Shahidi

The solution of integro-differential equations have a major role in the fields of science and engineering. Different approaches both numerical and analytic are used to solve these type of equations. In this paper, the solution of fuzzy…

General Mathematics · Mathematics 2016-10-05 Saif Ullah , Latif Ahmad , Muhammad Farooq , Saleem Abdullah

Recently, Wang et al. discussed the properties of fuzzy information systems under homomorphisms in the paper [C. Wang, D. Chen, L. Zhu, Homomorphisms between fuzzy information systems, Applied Mathematics Letters 22 (2009) 1045-1050], where…

Artificial Intelligence · Computer Science 2011-11-08 Ping Zhu , Qiaoyan Wen

In this paper we propose a new concept of differentiability for interval-valued functions. This concept is based on the properties of the Hausdorff-Pompeiu metric and avoids using the generalized Hukuhara difference.

General Mathematics · Mathematics 2019-11-12 Vasile Lupulescu , Donal O'Regan

A natural way to model dynamic systems under uncertainty is to use fuzzy boundary value problems (FBVPs) and related uncertain systems. In this paper we use fuzzy Laplace transform to find the solution of two-point boundary value under…

General Mathematics · Mathematics 2016-10-05 Latif Ahmad , Muhammad Farooq , Saif Ullah , Saleem Abdullah
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