Chapter 161 You Created a New Mathematical Tool
Xu Yuan came to the office door with familiarity. Just as he was about to knock, he saw the door was suddenly opened from the inside. As his sight extended forward, he saw that in addition to Tang Shihong, Liao Fangyi and Qiu Chengtong were also here.

"Come on in, we saw it when you got downstairs."

Seeing Xu Yuan still standing at the door in a daze, Tang Shihong quickly spoke with a smile on his face and invited Xu Yuan in.

Xu Yuan walked in and greeted a few people. As soon as he sat on the sofa, he heard Liao Fangyi explain: "I know you will come to Old Tang first when you come back, so Professor Qiu and I can only come here in advance."

Hearing this, Xu Yuan smiled awkwardly, thinking that no wonder the two professors and the department head were there.

However, no one talked too much about such trivial matters and quickly got straight to the point.

"You performed well this time. Winning the Gauss Prize is a new milestone for the domestic mathematics community. I was prepared for you to return empty-handed." Tang Shihong was the first to speak about the conference. His eyes never left Xu Yuan's body and he became more and more satisfied the more he looked at him.

Qiu Chengtong next to him immediately responded after hearing this:

"The Gauss Prize has been established for two mathematicians' congresses, but neither has selected the first winner."

"The fact that the International Mathematical Union and the German Mathematical Federation are willing to award you the Gauss Prize shows that your contribution to mathematics has been recognized by the international mathematics community."

“It will also be much easier to win the Fields Medal in the future.”

He is already a winner of the Fields Medal. Even though Xu Yuan only won the Gauss Prize this time, it is only a matter of time before he wins the Fields Medal.

The person who is still extremely excited and unable to calm down at this moment must be Liao Fangyi, the director of the Qinghua Academy of Mathematical Sciences.

As the head of the mathematics department, the students in the school won the Gauss Prize in one fell swoop, which in a way can be considered his achievement.

"Xu Yuan, you have brought great honor to our mathematics community this time. The higher-ups have given our mathematics department a very high evaluation. Now we can be said to have a real place in the international mathematics community."

"The school is proud of you."

Liao Fangyi spoke with a smile on his face, and was delighted to think of the discussion in the international mathematics community.

In the past, the domestic mathematics community only achieved some success in the Olympic Mathematics Competition, winning gold medals and first place in the team total score for several consecutive years.

However, mathematics has always been a weakness in the academic field.

The most important thing is that no one has ever won an award in the field of mathematics at the Congress of Mathematicians.

In addition, the Wolf Prize in Mathematics and the Abel Prize, which are of the same level, are also something we can only envy.

Now that Xu Yuan has won the Gauss Prize, although it is a breakthrough from 0 to 1, its significance is completely different.

Xu Yuan listened to everything Liao Fangyi said and wanted to say something humble, but he swallowed the words back when they came to his lips.

Liao Fangyi did not notice Xu Yuan's actions and continued to talk about new things.

"Also, regarding your doctoral graduation, since the proof of singularities in differential geometry is your graduation thesis, you can just write a copy of the thesis and submit it to the institute when the time comes."

"As for the graduation thesis defense, you don't have to worry about it. After all, your live report at the Mathematicians' Conference is the best defense."

"Once you finish your thesis, you will get your doctorate degree."

"In addition, after the graduation ceremony next year, the school hopes that you can stay on campus, and will directly give you the title of professor."

"Of course, the school respects your decision whether to teach or focus on academic research."

As Liao Fangyi finished speaking, just as Xu Yuan was thinking, Tang Shihong's voice suddenly came to his ears again.

"You don't have to worry about this. There will definitely be many colleges and universities that want to invite you. You can make a decision then."

For Tang Shihong, as a professor of the Department of Mathematics at Qinghua University, he should have persuaded Xu Yuan to stay in school after graduation.

But it was precisely for Xu Yuan's sake that he said this so that Xu Yuan would not have any concerns.

Sure enough, when Liao Fangyi heard this, he immediately looked over and a slightly embarrassed smile appeared on his face.

Finally, he could only wave his hand and added: "Old Tang is right about this matter. You should wait until you hear the conditions offered by other schools before considering it."

However, although he said this, he knew in his heart that he must keep Xu Yuan in Qinghua no matter what.

After all, Xu Yuan is a student of the Department of Mathematics at Qinghua University. Now that he has won the Gauss Prize and has become so famous in the mathematics community, how would the outside world view him if he became a professor at other universities?

Besides, everyone knows Xu Yuan's mathematical talent and potential. Maybe he can really complete the challenge of the Clay Mathematics Institute, prove the Millennium Prize problem and become a world master of mathematics.

The thought stayed here, and he also thought about going back to discuss this matter with the principal.

No matter how generous the salary offered is, Xu Yuan must be kept in Qinghua Academy of Mathematical Sciences.

Xu Yuan naturally didn't expect that the department head had already started to consider these things. After all, he hasn't even received his doctoral degree certificate yet.

The only thing I have is an honorary doctorate from Princeton University.

Fortunately, it is not too troublesome to just write a paper to prove the singularity of differential geometry.

In this way, you can get your doctoral degree certificate in advance without having to wait until next year's graduation ceremony.

He was quite touched by Tang Shihong's words, and naturally understood that the other party was considering him.

As these thoughts flashed through his mind quickly, he finally replied, "I will give it careful consideration for future plans." He did not make any direct promises, such as guaranteeing that he would definitely stay at the school and work at Qinghua. Anyway, there was still more than half a year to plan, so there was no need to rush.

Perhaps because he felt the atmosphere was a bit weird, Qiu Chengtong suddenly changed the subject.

"You said the other day that the content of your report was about singularities in differential geometry. I made a bold guess when I heard it, but I didn't expect that you actually proved the most core singularity problem in the field of differential geometry."

When Xu Yuan heard Qiu Chengtong mention the singularity of differential geometry, he subconsciously asked a question.

"Professor Qiu, have you read the contents of the report?"

"of course."

Qiu Chengtong nodded and continued, "You can apply the method of proving my conjecture to the proof of singularity and draw a conclusion through the combination of formulas. It is indeed very clever."

"In addition, my verification results are the same as Wells's. Under geometric conditions, singularities do have specific structures."

Xu Yuan knew that Qiu Chengtong's research field was differential geometry, so it was normal for him to be so interested in singularity problems.

"I also tried various proof methods, and finally decided to prove it through a combination of formulas."

"In any case, you have created new tools for differential geometry, and future research will have new directions." Qiu Chengtong replied with a look of satisfaction on his face when he heard Xu Yuan's words.

In the following time, Xu Yuan discussed his report with Qiu Chengtong.

Of course, he did not forget to take out the Gauss medal during this period.

For Tang Shihong and Liao Fangyi, at their age, even if they suddenly have a burst of inspiration to solve difficult mathematical problems, they will not be able to win these awards in the field of mathematics.

Therefore, being able to see this medal up close now can somewhat satisfy my regret.

Tang Shihong was even happier because the winner was his student than if he had won the award himself.

……

After finishing his work at school, Xu Yuan prepared to have dinner with Chen Yuran, who was already a graduate student, in the evening.

Since Chen Yuran moved to the newly built Bauhinia Apartment Graduate Building, it was actually closer to their dormitory. After going downstairs and walking a few steps, she arrived at the graduate building.

However, when he saw Chen Yu, the other party's first words caught him off guard.

"Well, my parents want you to come to their house for dinner tonight."

After questioning, it turned out that Chen Jianfang and Su Meihong had a very good impression of him and wanted to match their daughter with him. Then Chen Yuran directly told them about their relationship.

When Chen Jianfang learned that his daughter was with him, he was very happy and immediately invited him to dinner.

Although Xu Yuan didn't expect things to develop like this, he had nothing to say at this point.

The two bought some gifts on the way and then took a car to Chen Yuran's home.

Although it was not the first time I met Chen Yuran’s parents, my different identities and mentality naturally led to a different mentality.

It was a rare bit tense on the road.

Chen Yuran noticed Xu Yuan's expression and couldn't help laughing when she thought of what happened last time: "You were very happy when you met my parents before, why are you suddenly nervous now?"

"Last time we just went to Professor Chen's house for dinner. This time it's a son-in-law meeting his father-in-law and mother-in-law, so it must be different." Xu Yuan explained somewhat awkwardly.

Soon the two arrived at the community, went upstairs, and Chen Yuran rang the doorbell. Soon, Su Meihong, wearing an apron, opened the door.

Su Meihong's eyes lit up when she saw Xu Yuan. She quickly took the thing from Xu Yuan and said enthusiastically:

"Xiao Yuan is here. Come in and sit down. The food will be ready soon."

"Hello auntie."

After saying that, he led Xu Yuan to sit on the sofa in the living room, and asked Chen Yuran to pour some water quickly.

After hearing this, Chen Yuran was no longer surprised. She poured a cup of water and handed it to Xu Yuan. Then she sat down next to him and could not help but say, "You don't know how much they like you these days. They treat you almost better than my biological daughter." She regretted confessing their relationship before the mathematicians' conference.

Xu Yuan felt much more relaxed after hearing this. He could guess some of the details.

Chen Jianfang had always been fond of him because of the Chang'e-1 project, and now that he has won the Gauss Prize, if he had seen the news in the last few days, he would surely have praised him more.

All I can say is that this is the fact.

More than ten minutes later at the dinner table, Chen Jianfang praised Xu Yuan generously, as if he had already regarded Xu Yuan as his own son-in-law.

Xu Yuan was at a loss whether to laugh or cry about this, and could only take the initiative to pick up some dishes for Chen Yuran to comfort her.

After all, he was the one who went to his future father-in-law's house for dinner, but his girlfriend became invisible.

Halfway through the meal, Chen Jianfang suddenly thought of something and put down his chopsticks with a serious expression and said:
"Oh, and I have some good news for you. The higher-ups have officially approved the space station project. As you said before, we still have to rely on ourselves to develop the aerospace industry."

……

(End of this chapter)