On fuzzy congruences of a type-B semigroup I

Abstract

The main aim of this paper is to study fuzzy congruences of type-B semigroups. After obtaining some properties and characterizations of fuzzy good congruences on adequate semigroups, we consider fuzzy good congruences on type-B semigroups. Finally, we prove a theorem giving equivalent conditions on fuzzy cancellative congruences of such semigroups.

Analysing the Ecological Environment Greening of the Poyang Lake by Using the Fuzzy Comprehensive Evaluation Method

“…(iii) the single factor evaluation method: determine each factor of the degree of membership of each evaluation class, and get fuzzy matrix 11 1…”

“…It offers tools and a new approach to model the imprecision and uncertainty present in phenomena that do not have sharp boundaries. Since then, a series of research on fuzzy sets has come out expounding the importance of the concept and its applications to logic, algebra theory, topology, etc( see, [2][3][4][5][6][7][8][9][10][11] ). In order to learn about environmental conditions of the poyang lake, in this paper, we shall use fuzzy mathematics comprehensive evaluation method to evaluate the greening of the poyang lake ecological environment.…”

Research on the Hub City of �OBOR� Based on the Fuzzy Comprehensive Evaluation Approach

“…It offers new tools and a new approach to model the imprecision and uncertainty present in phenomena that do not have sharp boundaries. Since then, a series of research on fuzzy sets has come out expounding the importance of the concept and its applications to logic, algebra theory etc( see, [2][3][4][5][6] ). In order to learn about overall conditions of the hub city of "OBOR"--Nanchang, in this paper, we shall use fuzzy mathematics comprehensive evaluation approach to evaluate Nanchang from GDP(gross domestic product), urbanization rate, industrialization rate and investment enviroment, respectively.…”