On implicit coupled systems of fuzzy fractional delay differential equations with triangular fuzzy functions

• Published in: AIMS mathematics Vol. 6; no. 4; pp. 3741 - 3760
• Main Authors: Wu, Yu-ting, Lan, Heng-you, Liu, Chang-jiang
• Format: Journal Article
• Language: English
• Published: AIMS Press 01.01.2021
• Subjects: existence and uniqueness; fuzzy fractional delay differential equation; fuzzy terms separation method; implicit coupled system; solution algorithm; triangular fuzzy function
• ISSN: 2473-6988; 2473-6988
• DOI: 10.3934/math.2021222

In this paper, we introduce and study an implicit coupled system of fuzzy fractional delay differential equations involving fuzzy initial values and fuzzy source functions of triangular type. We assume that these initial values and source functions are triangular fuzzy functions and define the solution of the implicit coupled system as a triangular fuzzy function matrix consisting of real functional matrices. The method of triangular fuzzy function, fractional steps and fuzzy terms separation are used to solve the implicit coupled systems. Further, we prove existence and uniqueness of solution for the considered systems, and also construct a solution algorithm. Finally, an example is given to illustrate our main results and some further work are presented.