of;
Mathematics;
and;
Information;
Science,;
Guangzhou;
University,;
Guangzhou;
510006,;
China;
Laboratory;
of;
Mathematics;
and;
Interdisciplinary;
Science,;
Guangdong;
Higher;
Education;
Institutes,;
Guangzhou;
University,;
Guangzhu;
510006,;
China;
of;
Mathematics;
and;
Information;
Sciences,;
Zhaoqing;
University,;
Zhaoqing;
526061,;
China;