扇图是一种直和图。根据扇图的特征,研究了扇图的符号星控制数、符号路控制数和符号控制数,给出了这些控制数的函数表达式。
Fan is a kind of sum graph. According to the characteristics of fan, the signed star domination num- bers, signed path domination numbers and signed domination numbers of fan have been studied, the expressions of these domination functions are given.