About Yonghua Xu’s work
Yonghua Xu held a Croucher Visitorship at the Chinese University of Hong Kong from June to December 1993. At the time, Xu was based at Fudan University.
Biography
Xu graduated from the Department of Mathematics of Fudan University in 1955. He has served as a Professor and Head of the Department of Mathematics at Fudan University. He specializes in abstract algebra. Xu Yonghua's theorem was established in the study of the structure of chain-conditional rings, the theory of primitive structure, the Garohua theory of rings and the structure of general rings. The two-sided mode method was used instead of the finite ring topology method to study the structure of the primordial loop, and the basic theory of the primordial loop theory and the general loop was established.