Boys and girls generally have to go through several major stages. The first stage must be able to speak, make an appointment with the girl, and the second stage must achieve physical contact. As for the third stage, it is to push it down. △Lu Qiujian has now completed the first two steps, and as for the third stage, there is no hurry yet.

Just when he was in love with Natalie, Professor Nan received a new email. The poster of the email was Gregory Perelman. "Hmm? What achievements did Grisha do?" Professor Nan opened the email with a little enviousness:

Dear Nan,

Can you please check out my new paper, I propose a monotonic formula of the daily cci flow, which holds in all dimensions without the curvature assumption... If nothing is found, I plan to post it on the arxiv math website.

Gregory Perelman

It seems like a car crash! Poor Grisha, studying car crashes often happens in the academic world. Unexpectedly, it was his friend Grisha's turn this time. Professor Nan could see at a glance that his paper seemed to be similar to Lu Qiujian's. However, Grisha had not yet fully completed the proof of the Poincaré's conjecture, but he had only found a breakthrough; however, judging from the ideas revealed in this article, it would be a matter of time before Grisha completed the Poincaré's conjecture.

It's a pity! But the cruelty in the academic world is here. People usually only have their first breakthrough, and the rest will only become their foil. After thinking about it for a moment, Professor Nan began to reply:

Dear Grisha,

I have read your paper, a wonderful article, and I would like to express my sincere congratulations on your achievements; but I still want to regret to tell you that a third-year Princeton student has completed this proof before you, and has gone further than you, and has completely completed the proof of the Poincaré conjecture. The summary of the paper will be published in the next issue of Science, and all the papers will be published in the Mathematics Annual. If you are interested, you can find it after the journal is published.

Of course, if you are willing to communicate with Lu Qiujian, the student who cracked the Poincaré conjecture, I am willing to help you establish a connection.

Finally, I hope you will not lose your fighting spirit because of this blow and will be able to make greater breakthroughs in the future.

Your friend, Nan

The email soon came to the other side of the earth through the Internet. The distant Moscow was in the snow and ice. Gregory-Yakovrevich-Perrelman was gnawing cold and hard black bread in front of the computer. He had been insisting on this eating habit for more than ten years.

People who are as familiar with him as Professor Nan usually call him Grisha. Grisha became interested in mathematics at the age of 4. While other children were having fun, he was learning math books alone. At the age of 16, he entered the famous St. Petersburg No. 239, which has always been famous for teaching advanced mathematics and physics. In his first year of entering No. 239, he participated in the International Mathematics Olympiad as a high school student and won the gold medal with a full score of 42.

Everyone knew that this genius had an immeasurable future, and the Americans immediately provided him with generous scholarships, but he refused the invitation to study in the United States.

After graduating from high school, he entered the University of St. Petersburg and became a member of the St. Petersburg School founded by Chebischev. After obtaining his doctorate, he went to the Coolang Institute of New York University in the United States, and then went to the Stony Brook School of State University of New York. During this period, he met Professor Nan.

After the visit, he returned to St. Petersburg and continued to work "quietly" at the Stokolov Institute. He lived alone, and no one knew what he was doing; he did not expect that he made such a big breakthrough silently.

The prompt sound of the new email arrived, and Perelman smiled when he saw Professor Nan's name on the sender's location, speeding up the speed of eating black bread.

Why did he reply so quickly? With a hint of doubt, Perelman opened Professor Nan's email, and the content of the email immediately hit her a huge blow. Unexpectedly, the results of his years of concentrating on him had been made by others in advance. Perelman, who was excited, immediately replied to the letter and asked Professor Nan for Lu Qiujian's paper.

After obtaining Lu Qiujian's consent, Professor Nan sent the email. After experiencing Professor Ferrigue's affairs, the honor of cracking Poincaré's conjecture has fallen on Lu Qiujian's head, so there is no need to worry about other problems.

It's true that I think the same way! Unfortunately, I'm still one step late! The steps in Lu Qiujian's subsequent steps were beyond Perelman's expectations. If he asked him to do it, he would probably use the same way as Lu Qiujian.

God, do you really don’t want me to retire so early? After completing the cracking of Poincaré’s conjecture, Perelman, who was in the mathematics world, was confused. What should he do next?

I don't know when he will make a public report, so he must go and check it out, but tolls are a big problem! The Strkolov Institute is not a place that can provide high salaries. His meager salary is used by him to purchase various journals and research facilities. Perelman has not saved much savings in so many years.

It would be great if he was willing to place it in Europe. At least the travel fee would be a little less. Forget it, this is not something that cannot be solved. Let me talk about it when I receive the news! Professor Nan will probably notify me then, right?

Putting the travel expenses aside, Perelman leaned on the chair and thought about his future. This situation is not a bad thing now. At least you don’t have to worry about the great loss that you will have nothing to do, right? He comforted himself like this.

In mathematics, there is not only one unsolved problem in Poincaré's conjecture, it has been solved, but there are also many problems such as Riemann's conjecture, Hodge's conjecture, etc. waiting for mathematicians to overcome! Perelmann struggled for a few days and began to find a way forward for himself. Of course, he did not forget to send an email to Professor Nan:

Dear Nan,

When I received this email, I was both disappointed and excited. What I was lost was that I was behind others. I was excited to see the complete cracking process of Poincaré's conjecture earlier; if Lu Qiujian wants to make a public report in the future, please give me an entry ticket; you don't have to worry about my situation. I have come out of my confusion and are looking for new research directions. I hope that next time you receive the email, you will not bring me bad news like this one.

Gregory Perelman

This chapter is the third update in Sanjiang. I still owe 6,000 yuan and 10,000 to 15,000 yuan recommended updates! I will remember it!
Chapter completed!