摘要 : Wu Wen-tsun was born in Shanghai, China on May 12, 1919. He received his B.S. degree in mathematics from Shanghai Jiao Tong University in 1940. After the end of Sino-Japanese war in 1945, he became an assistant of the Jiao Tong Un... 展开 Wu Wen-tsun was born in Shanghai, China on May 12, 1919. He received his B.S. degree in mathematics from Shanghai Jiao Tong University in 1940. After the end of Sino-Japanese war in 1945, he became an assistant of the Jiao Tong University. In 1946, S.S. Chern admitted Wu as one of the research assistants in the Institute of Mathematics belonging to Chinese Academy of Sciences. Wu began to access to modern mathematics, and learned algebraic topology including then yet nascent theory of fiber bundles and characteristic classes. One year after, Wu brought out his first paper about a simple proof of the product formula of sphere bundles discovered by Whitney for which the original proof was very complicated and had never published. This new proof was published in Annals of Mathematics. 收起