Shiri, BabakBaleanu, DumitruBaleanu, DumitruMa, Chang-YouMatematik2024-09-182024-09-182023Shiri, Babak; Baleanu, Dumitru; Ma, Chang-You (2023). "Pathological study on uncertain numbers and proposed solutions for discrete fuzzy fractional order calculus", Open Physics, Vol. 21, No. 1.2391-5471https://doi.org/10.1515/phys-2023-0135A pathological study in the definition of uncertain numbers is carried out, and some solutions are proposed. Fundamental theorems for uncertain discrete fractional and integer order calculus are established. The concept of maximal solution for obtaining a unique uncertain solution is introduced. The solutions of uncertain discrete relaxation equations for the integer and the fractional order are obtained. Various numerical examples are accompanied to clarify the theoretical results and study of uncertain system behavior.eninfo:eu-repo/semantics/openAccessFuzzy NumberR-CutsUncertain NumbersHukuhara DifferenceFractional Nabla DifferenceArticle21110.1515/phys-2023-01352-s2.0-85179080697WOS:001109530900001Q3Q2