1

2 “...From September 13 to 17 in 1999, the First China-Japan Seminar on Number Theory was held in Beijing...”

3 “...This volume contains the proceedings of the very successful second China-Japan Seminar held...”

4 “... on Algebra and Their Related Topics at Chang Jung Christian University, Tainan, Republic of China, during...”

5 “...This volume is the Proceedings of the Third Korea-China-Japan Inter­ national Symposium on Ring...”