摘要
SubmissionPlease type your paper in LaTeX,and e-mail the pdf file.The editorial office will confirm receipt within 3 days.If you do notreceive the receipt letter,please send an e-mail to ask.The address is Editorial Board,Acta Mathematica Sinica(EnglishSeries),Institute of Mathematics,Academia Sinica,Zhongguancun,Beijing 100080,China,email:syc@amss.ac.cn.
