Abstract:

Using the concept of level sets of fuzzy numbers, we considered the convergence problems for the series of fuzzy numbers in the sense of the usual order relation. With regard to the convergence for the series of fuzzy numbers with positive terms, general terms and Leibniztype, we obtained the
 corresponding convergence tests respectively, so as to extend some basic properties of the classic series.

Key words: fuzzy number, series of fuzzy numbers, convergence, convergence test