Fuzzy rank of a fuzzy matrix
The paper deals with matrices over the set of fuzzy numbers (fuzzy matrices). It introduces the notion of fuzzy rank of a fuzzy matrix as an integer fuzzy number. Another definition of the rank for fuzzy matrices was proposed by \textit{S. Kaguei} and \textit{A. Ohsato} [ibid. 38, No.3, 355- 364 (1990; Zbl 0726.15002)].
scientific article; zbMATH DE number 4204563