ACTA MATHEMATICA SINICA (New Series)

Instructions to AuthorsSubmissionTypescripts should be submitted in duplicate to the Editorial Board of Acta Mathematica Simca(New Series), Institute of Mathematics, CAS, Beijing 100080, China. Typescripts should be typedin English, double spaced and single-sided on A-4 sheets and should be numbered beginning withthe title page. The first page of an article should contain only (1) the title of the paper, the name(s)and address(es) of the author(s); (2) an abstract of 50-200 words; (3) some related footnotes(including keywords and the subject classification). A short title not exceeding 45 letters and spaceswith the name and address of the author to whom correspondence will be sent should be attached on