Technology and talents are the foundation of a strong country. After Eight-Nation Alliance, the Qing court used boxer indemnity to transport a large number of talents, such as Qian Xuesen and Yang Zhenning, who all studied in the United States with scholarships. Yang Zhenning's achievements in physics have promoted the development of half a century, which is not boasting. But some people choose to study in the United States at their own expense, and Zhang is one of them.
Zhang was born in Shanghai, 1955. His parents are both senior intellectuals. Zhang has shown amazing mathematical talent since he was a child. His parents also intend to cultivate his talents. Junior high school and senior high school began to study complex prime numbers, and he was admitted to Peking University with excellent results.
His mathematical talent attracted the attention of Professor Pan Chengbiao, a famous mathematician in Peking University. He also focuses on cultivating Zhang. During the period from 1978 to 1985, Zhang received a bachelor's degree and a master's degree successively. His achievements impressed everyone in the class, even Professor Pan Chengbiao thought he was a wizard.
After obtaining the master's degree, President Ding recommended Zhang to Purdue University in the United States as a public student, studying under Mo Zongjian, and his research fields are commutative algebra and algebraic geometry. As a Chinese American, Mo Zongjian had a great influence on Zhang.
Both of them have a gift for mathematics. As geniuses, they all have their own ideas. They often quarrel over a problem. As a mentor, Mo Zongjian naturally doesn't want to condescend to Zhang. At that time, Zhang's doctoral thesis proved Jacobian conjecture, which quoted Mo Zongjian's theory.
But I didn't expect that Mo Zongjian's theory was proved to be wrong after it was published, which once caused the contradiction between them. Originally, Zhang could graduate within three years, but because he didn't get his doctorate for a long time, he couldn't graduate from Purdue University without finishing his doctorate for more than seven years.
1992, Zhang submitted his graduation thesis to the school again. This year is his seventh year. If he can't graduate this year, he will completely miss his doctorate. The school reevaluated that Zhang's knowledge had been reached and he was allowed to graduate, which means that the school admitted that Mo Zongjian was wrong.
The contradiction between the backlog of two people broke out. At that time, doctoral graduates needed letters of recommendation from tutors to find some good jobs. Mo Jianzong is unwilling to write for him, and his influence is much greater than Zhang's. No school is willing to hire him. At this time, Peking University asked him to return to China as a professor.
However, Zhang has a stubborn temper. He thinks that he graduated in seven years and achieved nothing. He had no face to return to China, so he refused. Zhang, who has no job, works everywhere, serves dishes in fast food restaurants and works as a cashier. 1999 An alumnus in Peking University heard about Zhang's experience and recommended him to the University of New Hampshire.
At this time, Zhang began to work as an assistant professor in the Department of Mathematics for 65,438+00 years. After his job was stable, he began to study prime numbers. Sharpen a sword in ten years? It took Zhang 20 years to prove the twin prime conjecture at 20 13, and he became a red man in mathematics and a first-class professor in the United States.
He also became a professor of mathematics at the University of California, Santa Barbara, and eventually succeeded. 20 18 is the director of pan chengdong institute of mathematics, Shandong university. At this time, Zhang returned to China and made his own achievements. Perhaps this is the best answer he entrusted to the motherland and Peking University.