一类含有三个圈的本原不可幂定号有向图的Local基的界

Bounds on Local Bases of a Class of Primitive Non-Powerful Signed Digraphs Which Contains Two s-Circles and an(n-t)-Circle

文章对一类含有2个s圈和1个(n-t)圈的本原不可幂定号有向图的local基的界进行了研究.通过分析此类图的特点,综合运用指数、SSSD途径对和Frobenius的特性给出了此类图的local基的界.

We study the local bases of a class of primitive non-powerful signed digraphs which contains two s-circles and an（n-t）-circle.By using the knowledge of exponent,SSSD walks and characteristics of Frobenius,the bounds on the bases of this class of primitive non-powerful signed digraphs are obtained.