Welcome to Yuan Yao’s Homepage!
 
Flags of China
 
 
Qing Dynasty (1888-1912)
Republic of China (1912-1915)
Empire of China (1915-1916)
Tibet (1912-1950)
(never acknowledged by above)
Hong Kong (1997-)
Macau (1999-)
Republic of China (1916-1928)
Republic of China (1928-)
People’s Republic of China (1949-)
Bookmarks
arXiv (to learn more math)
MathOverflow (to communicate with mathematicians)
MIT OpenCourse (to help my teaching)
Wikipedia (to absorb knowledge in all subjects)
豆瓣，虾米音乐网 (to refresh myself)