Lu. A brother in Fuzhou mathematics is Lu. Lu won the gold medal in the National Mathematical Olympiad, was selected into the national training team, and was sent to Peking University Institute of Mathematical Sciences. Fuzhou, short for "Rong", also known as Rongcheng, is known as the capital of Fujian in history. Fujian Province is a prefecture-level city, provincial capital and I-type big city, located in East China, East Fujian, the lower reaches of Minjiang River and coastal areas.