Prominent mathematician Zhu Yongchang will join Tsinghua University in Beijing after 30 years in Hong Kong as universities in mainland China continue their efforts to recruit top-tier talent. Tsinghua’s Yau Mathematical Sciences Centre announced on July 9 that Zhu, previously at Hong Kong University of Science and Technology (HKUST), would join the centre in September. Zhu’s research focuses on the intersection of representation theory and mathematical physics. Representation theory builds on...