Dr. SUN Binyong was born in Putuo, Zhejiang province, in November, 1976. He got bachelor’s degree in mathematics from Zhejiang University in 1999, and got Ph.D. degree from the Hong Kong University of Science and Technology in 2004. After finishing a postdoctoral position at ETH Zurich, he joined Academy of Mathematics and Systems Science, CAS, where he is now a professor, as an assistant professor at the end of 2005.

SUN Binyong focuses on the study of major problems in infinite dimensional representation theory of classical Lie groups. Among 30 research papers which are written by SUN and his collaborators, many appear in prestigious mathematical journals. SUN was selected in “The Youth Talent Plan” of China in 2012.

**Award-winning achievement: **

*Progresses on infinite dimensional representation theory of classical groups:* Classical groups include orthogonal groups, symplectic groups, general linear groups, and unitary groups. They describe the symmetries of various geometric spaces. Among others, Chinese mathematicians HUA Loo-Keng and WAN Zhexian make important contributions to the study of classical groups. Infinite dimensional representation theory of non-compact classical Lie groups, especially the branching laws and the theory of theta lift, plays a key role in many problems in number theory and theoretical physics. SUN Binyong and his collaborators solve a series of important problems in this area, including the multiplicity one conjecture of Bernstein and Rallis for real classical groups, the multiplicity conservation conjecture of Howe for orthogonal-sympectic theta lift, and the conjecture of Kudla and Rallis on conservations relations for local theta correspondence.