The reasonable model of fuzzy comprehensive judgment is found by means of thetheory and method of multi-level fuzzy judgment on the basis of the judging index s
In this paper, the authors study the periodic boundary value problems of a class of nonlinear integro-differential equations of mixed type in Banach space with
Aiming at the problem of reliability allocation for a complicated large system, a new thought is brought up. Reliability allocation should be a kind of decision