Goldbach conjectures that this world-class mathematical problem that has been unresolved for more than 200 years has attracted the attention of thousands of mathematicians all over the world, but few people can really challenge this problem. In high school, Chen Jingrun listened to his teacher's philosophical remarks: the queen of natural science is mathematics, the crown of mathematics is number theory, and Goldbach conjecture is the jewel in the crown. This crucial enlightenment became his unswerving goal all his life. In order to prove Goldbach's conjecture, Chen Jingrun studied mathematics day and night and found this world-famous pearl of mathematics. Chen Jingrun trudged in the field of mathematics with amazing perseverance. Hard sweat has brought fruitful results. 1973, Chen Jingrun finally found a simple method to prove Goldbach's conjecture. After his achievement was published, it immediately caused a sensation in the world. Among them, "1+2" was named "Chen Theorem", also known as the "glorious vertex" of the screening method. Hua and other mathematicians of the older generation spoke highly of Chen Jingrun's paper. Mathematicians from all over the world have also published articles praising Chen Jingrun's research achievement as "the best achievement in studying Goldbach's conjecture in the world at present". Goldbach guessed that when Chen Jingrun was studying in Huaying Middle School in Fuzhou, he was lucky enough to listen to the learned math teacher Shen Yuan transferred from Tsinghua University. He told his classmates a world math problem: "About 200 years ago, a German mathematician named Goldbach proposed that' any even number greater than 2 can represent the sum of two prime numbers', abbreviated as (1+ 1). He never proved it in his life, so he wrote to Euler, a mathematician in St. Petersburg, Russia, and asked him to help prove the problem. After receiving the letter, Euler began to calculate. He tried to prove it to the death. Later, Goldbach passed away with a lifetime of regret, but left this mathematical problem behind. For more than 200 years, Goldbach's conjecture has attracted many mathematicians, making it a big unsolved mystery in mathematics. " The teacher also made an interesting metaphor here. Mathematics is the queen of natural science, and Goldbach conjecture is the jewel in the queen's crown! This fascinating story left a deep impression on Chen Jingrun, and Goldbach's conjecture attracted Chen Jingrun like a magnet. From then on, Chen Jingrun began the arduous course of winning the crown jewel of mathematics. Goldbach conjecture 1729 ~ 1764, Goldbach and Euler have kept in communication for thirty-five years. In the letter 1742 to Euler on June 7th, Goldbach put forward a proposition. He wrote: "My question is this: Take any odd number, such as 77, which can be written as the sum of three prime numbers: 77 = 53+17+7; Take an odd number, such as 46 1, 46 1=449+7+5, which is also the sum of three prime numbers. 46 1 can also be written as 257+ 199+5, which is still the sum of three prime numbers. In this way, I found that any odd number greater than 7 is the sum of three prime numbers. But how can this be proved? Although the above results are obtained in every experiment, it is impossible to test all odd numbers. What is needed is a general proof, not another test. " Euler wrote back: "This proposition seems correct, but he can't give a strict proof. At the same time, Euler put forward another proposition: any even number greater than 2 is the sum of two prime numbers, but he failed to prove this proposition. " It is not difficult to see that Goldbach's proposition is the inference of Euler's proposition. In fact, any odd number greater than 5 can be written as 2N+ 1=3+2(N- 1), where 2(N- 1)≥4. If Euler's proposition holds, even number 2(N- 1) can be written as the sum of two prime numbers. But the establishment of Goldbach proposition does not guarantee the establishment of Euler proposition. So Euler's proposition is higher than Goldbach's proposition. Now these two propositions are collectively called Goldbach conjecture. Chen Jingrun proved Goldbach's conjecture. Newton physicist Newton was curious when he saw the apple ripe when he was a child. He thought, why does everything on the earth fall to the ground after losing its support, but not in other directions? Later, he finally discovered the law of gravity. Edison Edison was interested in everything when he was a child. I always want to try something I don't know and find it. Once, he saw a wild beehive near the fence of the garden. He felt very strange, so he poked it with a stick to find out. As a result, his face was swollen by a wild bee sting, but he still didn't want to see the structure of the hive clearly. Edison later became a world-famous great inventor. Copernicus Copernicus was afraid of the church's rule, opposition and persecution, and was unwilling to publish the theory of celestial movement. 1543 On May 24th, Copernicus saw the newly published sample book "On the Operation of Celestial Bodies" on his deathbed. Although Copernicus's "sun-centered theory" was vilified and attacked by religious forces and conservatives in the society after its publication, even those who believed in propagating this theory were brutally suppressed and persecuted, but Copernicus's theory still won the final victory. Copernicus and his theory of celestial bodies, like twinkling superstars in the dark night sky, shine forever. An example of a scientist. Pick a hair or an idiot, huh? "The jewel in the crown of mathematics" means that Chen Jingrun has taken a big step forward in proving Goldbach's conjecture. In the history of modern mathematics, Chen Jingrun's name is closely related to Goldbach's conjecture. Chen Theorem is regarded as a brilliant achievement, which has greatly promoted the proof of Goldbach's conjecture and made China a world leader in this field. From 65438 to 0953, Chen Jingrun graduated from the Mathematics Department of Xiamen University. Because of his excellent research on a series of problems in number theory, Professor Hua attached great importance to it and was transferred to the Institute of Mathematics of China Academy of Sciences. Later, there was a story of "Luo Yi Liang Yan". Although living conditions were very difficult at that time, Chen Jingrun insisted on studying Goldbach's conjecture in a small room of only 6 square meters. After countless days and nights of hard work, he finally achieved achievements that shocked the world. However, Chen Jingrun's efforts are also amazing. Used calculus draft paper can be packed in several sacks, which is a constant illness. Even so, lying on his deathbed, he worked tirelessly. Chen Jingrun also made important contributions to the study of other famous problems in number theory, such as the lattice point of Gauss circle, the lattice point of ball, Tali problem and Waring problem. Chen Jingrun is an internationally renowned mathematician who is deeply respected by people. However, instead of being complacent, he attributed all the credit to the motherland and the people. In order to safeguard the interests of the motherland, he did not hesitate to sacrifice his personal fame and fortune. 1977 One day, Chen Jingrun received a letter from the president of the International Federation of Mathematicians, inviting him to attend the International Congress of Mathematicians. There are 3000 people present at this meeting, all of whom are world-famous mathematicians. Chen Jingrun is one of 10 mathematicians designated by the congress to give academic reports. This is a great honor for a mathematician and is of great benefit to enhancing Chen Jingrun's international reputation. Chen Jingrun didn't make a good claim, but immediately made a report to the Party branch of the Institute, requesting the Party's instructions. The Party branch reported this situation to the Academy of Sciences. The Party organization of the Academy of Sciences was cautious about this issue, because China's seat in the International Federation of Mathematicians had been occupied by Taiwan Province Province. The leader of the hospital replied: "You are a mathematician, and the party organization respects your personal opinion. You can write back to him yourself. " After careful consideration, Chen Jingrun finally decided to give up this rare opportunity. In his reply to the president of the International Federation of Mathematicians, he wrote: "First, China has always attached importance to developing academic exchanges and friendly relations with countries around the world. I personally thank the President of the International Federation of Mathematicians for his invitation. Second, there is only one China in the world, the only one that can represent the interests of the broad masses of people in China is People's Republic of China (PRC), and Taiwan Province Province is an inalienable part of People's Republic of China (PRC). I can't attend because Taiwan Province Province currently occupies the seat of the International Federation of Mathematicians in China. Third, if China has only one representative, I can consider attending this meeting. " In order to safeguard the dignity of the motherland, Chen Jingrun sacrificed his personal interests. From 65438 to 0979, Chen Jingrun went to the United States for a short-term research visit at the invitation of Princeton Institute for Advanced Studies. The conditions at Princeton College are very good. In order to make full use of such good conditions, Chen Jingrun squeezed out all the time he could save, worked hard and didn't even go back to his place to eat lunch. Sometimes he goes out for a meeting and the hotel is noisy, so he hides in the bathroom to continue his research work. Because of his efforts, during his short five months in the United States, he not only attended meetings and lectures, but also finished the paper "The Minimum Prime Number in arithmetic progression", which pushed the minimum prime number from 80 to 16 at once. This research result was also the most advanced in the world at that time. In a relatively developed country like the United States, Chen Jingrun still maintains a frugal style at home. He can get 2000 yuan from the institute a month, which can be said to be quite rich. Every noon, he never goes to the institute canteen for dinner. It's exquisite, and he can enjoy it completely, but he always eats the dry food and fruit he brings. He was so frugal that he lived in the United States for five months. Excluding rent, utilities and $65,438+0,800, he only spent $700 on meals. When he came home, * * * saved 7500 dollars. The money was not a small sum at that time. He could have bought some high-end home appliances from abroad like others. But he gave all his money to the country. What does he think? In his own words: "Our country is not rich yet, so I can't just think about pleasure." Chen Jingrun is such a very modest and upright person. Although he has achieved great success, he is not complacent.