On Henstock integral of fuzzy-number-valued functions (I)
In this paper, we define and discuss the (FH) integral for fuzzy-number-valued functions. Using a concrete structure into which we embed the fuzzy number space E-1, several necessary and sufficient conditions of integrability for fuzzy-number-valued functions are given by means of abstract function theory. (C) 2001 Elsevier Science B.V. All rights reserved.
(fh) integral fuzzy number fuzzy number function