About author:HUANG Xian-yong(1977-), male, native of Heping, Guangdong, a lecturer of Guangdong University of Education, engages in the differential equations and applications; XU Zhi-ting(1963-), male, native of Xuancheng, Anhui, a professor of South China Normal University, engages in the differential equations and dynamical systems.
Supported by:
Supported by the NSF of Guangdong Province(S2011010004447, S2012040006865)