I took this picture at the Summer palace, Beijing, in 1992, when I visited there as one of the speakers of the first Japan-China Seminar on Numerical mathematics.
This is a snap-shot during the 2-nd Japan-China Seminar on Numerical Mathematics
I took this picture when I was invited to Peking University in October, 1997. Prof. Z.-h. Teng ( left ), Prof. Z.-c. Shi ( center ), and Prof. L.-a. Ying (right)