Showing papers by "Sichuan University published in 1980"
995 citations
TL;DR: In this paper, a theory of neighborhood structures and theorems in the theory of Moore-Smith's convergence are generalized to fuzzy topological spaces, including product spaces and quotient spaces.
189 citations
TL;DR: In this article, the same pressure appears in three main directions, and therefore simulates infinite test domes more perfectly than ones as given in the tentative standard ISO/DIS 3556/1 and others.
7 citations
TL;DR: In this paper, a generalized principle of inclusion and exclusion and its applications for enumeration problems in combinatorial theory is presented. And the number of elements of A that satisfy at least k (k ≥ r) properties of P is deduced.
Abstract: Publisher Summary This chapter presents generalized principle of inclusion and exclusion and its applications. The principle of inclusion and exclusion is very important and useful for enumeration problems in combinatorial theory. By using this principle, in the chapter, the number of elements of A that satisfy exactly r properties of P are deduced, given the numbers of elements of A that satisfy at least k ( k ≥ r) properties of P. In the chapter, a method is described to deduce the number of elements of A that satisfy exactly r i properties of the i th group of properties (1 ≤ i ≤ n ) if the properties in the principle problem are divided into n groups and r 1 , r 2 , . . . . r n are n integers.