Juan J. Font - Department of Mathematics Universitat Jaume I Spain
Sergio Macario - Campus Riu Sec

In this paper we provide new several Jackson-type approximations results for continuous fuzzy-number-valued functions which improve several previous ones. We use alternative techniques adapted from Interval Analysis which rely on the gH-difference (which might not exist) and the generalized difference (which might lack the cancellation law ) of fuzzy numbers.

Modulus of continuity, Fuzzy numbers, approximation error