Fuzzy differential equations (FDEs) are the general concept of ordinary differential
equations. FDE seems to be a natural way to model the propagation of cognitive uncertainty …

Fuzzy fractional differential has the strength to capture the senses of memory and
uncertainty simultaneously involved in dynamical systems. However, a solution for fuzzy …

This paper reveals a computational method based using a tau method with Jacobi
polynomials for the solution of fuzzy linear fractional differential equations of order 0< v< 1. A …

Analytical studies of fuzzy fractional differential equations (FFDEs) of two different
independent fractional orders are often complex and difficult. It is essential to develop …

In this research article, we discuss an important class of modern differential equations in the
Pythagorean fuzzy environment, called the Pythagorean fuzzy fractional differential …

The uncertainties or fuzziness occurs due to insufficient knowledge, experimental error,
operating conditions, and parameters that give the imprecise information. In this article, we …

Fuzzy fractional models are of interest because they are very effective in describing real-
world problems, but the analytical investigation of these models is often complex. Therefore …

Many mathematical models describe the Corona virus disease 2019 (COVID-19) outbreak;
however, they require advance mathematical skills. The need for this study is to determine …

We propose a generalization of conformable calculus for Type-2 interval-valued functions.
We investigated the differentiability and integrability properties of such functions. The …

In this work, fundamental flow problems, namely, Couette flow, fully developed plane
Poiseuille flow, and plane Couette–Poiseuille flow of a third-grade non-Newtonian fluid …