I and Hua Luogeng Chinese Academy of Sciences, Chinese Academy of Foreign Affairs (Guangming Daily 2001-03-26) This is a speech at the opening ceremony of the opening ceremony of the International Mathematics Conference of Hua Luogeng 90, last December 18, last two natural paragraphs. The remellies made on March 9. In order to maintain an original, the editor of this journal only works very little about the speech and adds the title. This is the first disclosure of this article. --- Editor, I have been with Hua, who has been in the same year. The first time I met in Tsinghua Garden. In 1931, I was in the autumn of the autumn. Seventy years, we are sometimes in the same system, we have always contacted. He is less than one year older than I am born in 1910. I think of our initial together, when he came in 1931, when he was just a student graduated in junior high school, his mathematics papers caused everyone's attention. Tsinghua is very exception, not only finds him to Tsinghua, and give him a position, this is a few things in the university. Because of his relationship, the name is a assistant. At that time, the mathematics department was called the algorithm, and later changed to the mathematics department. A year ago, I am a teaching system of the department. The office of the school is in the area of the field of field, and there are two rooms in both sides, a total of 4 rooms, is the office of the department. One side is Mr. Xiong Qinglai, he is Director, I also have a table in another place, is his assistant. There are two tables outside, which is the work desk of Zhou Hong and Tang Pei. When Luo Geng went to Tsinghua, he stayed in my work. Because I changed to graduate students in 1931, he as a assistant, with this table, so our relationship is a success. Luo Geng is a very good mathematician, so he does not need general mathematics training. He will soon follow all the people, all graduate students, even faculty, can discuss mathematics issues in the same stage. Although he is an assistant, he is equivalent to a graduate student. I am also studying, we often come and go, the same class, that is a very pleasant student life. What I want to mention is that Tsinghua is a small department of the study, but it is a quite impact on the development of China's algorithm, and even it is a meaningful chapter in the history of Chinese mathematics. In addition to Mr. Hua, we have Zhuang Thai, Shi Xianglin, and Shi Xianglin, and Shi Xianglin is a professor of Nanjing University. Tsinghua has also produced a considerable group of people in such a small size, and has some effects on China's mathematics. Tsinghua later developed, so I have invited foreign teaching. At that time, foreign professors were invited to open a meeting, eat, eat a few TRANSPARENCY (transparent film) exhibition. At that time, I lived in Tsinghua Park for a year. French mathematician Hadamard is an internationally famous mathematician, and the USER Wiener is in the Qinghuayuan, lectures. It is easy for the arrangement of this look now. Therefore, the Qinghua Park is small, and it can have some effects on China's mathematical development. In 1934, I left Tsinghua, graduated from graduate, I went to Germany to read the book. Luo Geng was abroad from 1936, he went to the University of Cambridge, the University of Justice, with the UK's large mathematician Hardy. He abroad is a train taken by Siberian Railway from Beijing to Berlin. I am in Burger, in Germany, so we met in Berlin in 1936. The World Games, who just clever, in Berlin, Hitler on the stage. It is also very interesting, 100 meters, 200 meters running the fastest is black, and Hieler is a blow.
Unfortunately, China's athletes in the 1936 Berlin World Games have not been good. The most famous is Yang Xiuqiong, which is swimming. She has a lot of achievements, but I remember what she didn't have to show. The highest China's status is the rod of the Gu Baolu, but no medals are obtained. In contrast, our country now has grown into a lot, and now Chinese athletes have a glorious achievement in the World Games. Thinking, mathematics also has this potential, but mathematics needs a long time. Luo Geng and I met in Berlin, but also watching the sports meeting, talking together. After the World Games in 1936, I went to the British Cambridge, naturally with Luo Geng. At that time, the work was about analyzing a number of words, the most tight magical analysis of the analysis of the quarry is CircleMethod, which is the circumference of the circumference. It is very strange, the number is to discuss the nature of integers, but to study the profound nature of integers, the number of revolutions need to be completed. The relationship between the number of times the number of courage is a very favorable problem, and Luo Geng has done a lot of work, with his own contribution. He made a WARING problem with a circular method and made Tarry issues. About circular law, a very tight person is Indian genius mathematician ramanujan, the first article is a human article with ramanujan. Later, a great progress is the Mathematician Vinogradov of the Soviet Union. Luo Geng has a lot of progress on the method of Vinogradov, there are many progress. One of his own contribution is an estimate of triangulation and an important contribution. I want Luo Geng at a paragraph of Cambridge, 1936 to 1938, is when he has the most profound contribution in mathematics. Regarding the analysis of number theory, his contribution is very much. In 1938 he returned to China, the Sino-Japanese war has begun. Peking University, Tsinghua University, Nankai University became the Southwest United University in Kunming. He is a professor of Tsinghua, so it is also part of the Southwest Union University. We now like not enough equipment, or support is not enough. In fact, we didn't have anything at that time, even the books were put in the box, and I don't know when I need to move again, so the gentlemen of the library are reluctant to open the box. However, in that case, in the Southwest University of Kunming, everyone's mood is very good, the spirit is very good, there are a lot of good friends. For example, we have a seminar (discussion class) with Mr. Wang Zhuxi, a physics, I think it is 1940. At that time, the math of the Southwest Union was a few very good students, such as Wang Xianzhong, Zhong Kai Lai, Yan Zhida, Wang Hao, Wu Guanglei. So, if someone, this spirit, even if the environment is not a little, you can still do a lot of work. From 1938 to 1943, there were about five years of scene with Lu Geng. Just arrived in Kunming, I went to a group of people, there is no place to live. Because the original school is not in that place, we borrow a middle school house, that middle school is very generous, allocating some houses to make people in Southwest China to live. So the professor like Hua Luogeng, I, and Mr. Wang Xinzhong (he is an expert in Japan), and we stay in a room. Everyone is a bed, a desk, a bookshelf, a chair, the house is quite squeezed, but life is very interesting. Three people have not got up early, joking, kidding each other. Although the material is hard, life is also very interested. Now everyone hopes that the substance is constantly improving, I think there is also a happy. In the summer of 1943, I went to the US Princeton High School, Luo Geng in Kunming, usually communicated. The anti-Japanese victory is victory, the national complexion, I know that he has many social activities. We meet in 1946 in Shanghai. At that time, I just raised from the United States, he will go to the United States.
