About author:ZHAO Xiang-hui(1972-), female, native of Baoding, Hebei, a lecturer of Hebei University of Science and Technology, M.S.D., engages in algebraic combinatorics; XU Ning(1978-), female, native of Shijiazhuang, Hebei, a lecturer of Hebei University of Science and Technology, M.S.D., engages in algebraic combinatorics; ZHANG Geng-sheng(1965-), male, native of Tangshan, Hebei, a professor of Hebei Normal University, Ph.D., engages in algebraic combinatorics.
Supported by:
Supported by the NSF of Hebei Province(A2009000253)
