Nantong. According to the online resume, Ge Jun, a native of Nantong, is an associate professor of Nanjing Normal University and a tutor for master students. He is called "the Emperor of Mathematics" on the Internet. He has been one of the proposers of Jiangsu Paper Mathematics in 2003 and 20 10 college entrance examination. In 20 10, Ge Jun, the deputy head of Jiangsu college entrance examination, and Yao Tianxing, also a native of Nantong, wrote the most difficult mathematics volume of Jiangsu college entrance examination in 20 10.