About author:HU Li-li(1982-), female, native of Zhangzhou, Fujian, a lecturer of Zhangzhou Teacher’s College,
M.S.D., engages in graph theory.
Supported by:
Supported by the National Natural Science Foundation of China(11101358); Supported by the Project of Fujian Education Department(JA11165); Supported by the Project of Education Department of Fujian Province(JA12209); Supported by the Project of Zhangzhou Teacher’s College(SJ1104);