August 2005 19: Beijing Science and Technology News published an interview entitled "Qiu Chengtong: It is impossible for China to produce first-class educational talents at present". In this article, Qiu Chengtong accused China of academic corruption, and didn't name Tian Gang for plagiarism: a famous Harvard professor told Qiu Chengtong that this student (Tian Gang) plagiarized his paper, but Qiu Chengtong didn't delve into it for the purpose of protecting young students. The result is getting worse and worse. August 20th, 2005: The part-time teacher of Peking University Institute of Mathematics in Tian Gang responded to the Fact Investigation of the Qiu Chengtong Bombing, refuting Qiu Chengtong's three criticisms of the Department of Mathematics of Peking University, saying that his plagiarism against Tian Gang was "distorting the facts". September 29th, 2005: On the websites of Zhejiang University and China Academy of Sciences, Qiu Chengtong once again accused Tian Gang of "improper study style in Peking University". Qiu also claimed in the interview of "Academician Clarifies Most Facts of Peking University" that Tian Gang's achievements were basically achieved, and Tian Gang was suspected of academic fraud and misappropriation of other people's academic achievements because of his bad moral character. It also shows a letter in lowercase from another famous mathematician, claiming that Tian Gang copied small achievements. June 2005 5438+1 October1:The online article signed "Tang Seventeenth" refuted the accusation of Qiu and attacked Qiu's personal academic ethics. On April 6th, 2005, 10, another online writer who signed "Heaven and Earth are righteous" attacked Qiu Chengtong: unfair, power-hungry, bullying, extortion and boasting. On June 8, 2005, 65438+ 10:, Hong Jiaxing, Cao Huaidong, Zheng, Ji Lizhen, etc., published articles on the Internet to defend Qiu Chengtong. On June 5438+1October 65438+March 2005, Peking University Institute of Mathematics student An attacked Tian Gang (Africa) on the Internet to defend Tian. Tian Gang's collaborator, Professor Qing Jie of the University of California, Santa Cruz, indirectly explained that he and Tian Gang did not copy Qiu Chengtong's paper (in response to Qiu Chengtong's accusation). 2005 10 12 Qiu Chengtong responded to the online attack on him on the website of China Academy of Sciences. Academician Ding from Peking University and a retired professor of mathematics from the University of California, Berkeley, gathered at Peking University on May 1st to tell the students about the Tian Gang incident. Ding said that criticizing the Institute of Mathematics of Peking University was to prevent Peking University from establishing a national mathematics center. On May 1, he talked about his contacts with Qiu Chengtong, and made a serious criticism of Qiu Chengtong.

On June 5438+1October 65438+July, 2005, Professor Xiao of Harvard University published a letter, responding to the accusations made by Academician Ding and Professor Wuyi, calling on both sides to stop attacking each other. On August 2 1 2006, the website of The New Yorker magazine published the article "Multiple Fates" co-authored by Sylvia Nasar, the author of A Beautiful Mind (the biography of Nobel Prize winner Nash), criticizing Qiu Chengtong for propagating China scholars, completely proving the impure motives of Poincare's conjecture for the first time, and questioning his character. An anonymous online author claimed that Tian Gang was behind this article. Many American professors interviewed in the article subsequently issued a statement saying that the article distorted their original intention. On September 1 2006, Peking University Ding published an article about Poincare conjecture in his blog, criticizing the domestic propaganda about Poincare conjecture, and directly criticized it by name. On September 4th, 2006, 265438+20th Century Business Herald published an interview with Min Weifang, secretary of the Party Committee of Peking University. In response to Qiu Chengtong's "unfair criticism" of Peking University, he also commented: "Recently, I read two materials. One is a conversation with Professor Wuyi by Berkeley. Professor Xiang has known him since he was a student, so he is very familiar with Professor Qiu. Another material is a long report published by The New Yorker, an influential American magazine, last week, which also contains a lot of content about Professor Qiu. I think that after reading these two materials, you will have a more objective and clear understanding of Professor Qiu's debate with Tian Gang and Peking University. " This reflects the position of Peking University in the Akita dispute. On September 18, 2006, Qiu Chengtong published an open letter on his website, arguing that the article in The New Yorker contained false and defamatory contents and demanded that it be corrected. On September 20, 2006, The New Yorker magazine issued a statement saying that a lot of work had been done in writing this article, and the original materials had been checked with Qiu Chengtong, which met the news standards. On September 22, 2006, Peking University Institute of Mathematical Sciences published an article "Some Notes of Peking University Institute of Mathematical Sciences" on its website and Peking University's unnamed BBS[ 18], defending Peking University and Tian Gang, denying Qiu Chengtong's accusation, and saying: "We always sincerely welcome any individual or unit (including this Chinese American mathematician) to make criticisms and opinions on our work realistically, and if there is any, it will be corrected, and if there is no, it will be added. However, we resolutely oppose irresponsible and unfounded fabrication and slander by any person or unit. " On September 25th, 2006, Professor Columbia University issued a statement, describing his support for his Matteo Ricci research with his research team, and highly praising Qiu's character. Ricci flow is the main mathematical tool to prove Poincare conjecture.