Since the term “Fuzzy differential equations”(FDEs) emerged in the literature in 1978,
prevailing research effort has been dedicated not only to the development of the concepts …

We survey some representative results on fuzzy fractional differential equations,
controllability, approximate controllability, optimal control, and optimal feedback control for …

In this paper, using the concept of horizontal membership functions, a new definition of fuzzy
derivative called granular derivative is proposed based on granular difference. Moreover, a …

Greenhouse climate control is complicated procedure since the number of variables
involved on it and which are dependent on each other. This paper presents a contribution to …

The breakout of the pandemic COVID-19 has affected numerous countries and territories
worldwide. As COVID-19 specific medicines yet to be invented, at present the treatment is …

Automatic voltage regulator (AVR) system is an important equipment in power system for
maintaining the terminal voltage of the generator at a specific level. Recently, fractional …

In this paper, we introduce two definitions of the differentiability of type-2 fuzzy number-
valued functions of fractional order. The definitions are in the sense of Riemann–Liouville …

This paper deals with sub-optimal control of a fuzzy linear dynamical system. The aim is to
keep the state variables of the fuzzy linear dynamical system close to zero in an optimal …

In this paper, a new formula of fuzzy Caputo fractional-order derivatives (0<; v≤ 1) in terms
of shifted Chebyshev polynomials is derived. The proposed approach introduces a shifted …

In this paper, a class of uncertain linear dynamical systems called fuzzy fractional linear
dynamical systems is investigated. The aim is to find control inputs to keep the states of the …