摘要
This special issue of Acta Mathematica Scientia is dedicated to Professor Banghe Li on the occasion of his 80th birthday.Professor Banghe Li was born in Yueqing City,Zhejiang Province.He graduated from the University of Science and Technology of China in 1965 and has been working in the Chinese Academy of Sciences since then.He was elected as an Academician of the Chinese Academy of Sciences in 2001.
