Institute;
of;
Applied;
Mathematics;
Academy;
of;
Mathematics;
and;
Systems;
Science;
Chinese;
Academy;
of;
Sciences;
Graduate;
School;
of;
the;
Chinese;
Academy;
of;
Sciences;
Lanzhou;
Jiaotong;
University;
Department;
of;
Applied;
Mathematics;
Northwest;
Normal;
University;