Looking at the four students in tangle in front of him, Xu Chuan smiled and said: "You don't have to answer me now, you can think more."

"Whether you follow me to China or stay at Princeton, I have no objection and am happy to accept it."

"Go ahead and think about it carefully when you go back."

He did not let the four of them make a choice now. The resignation of the supervisor during the PhD program was indeed a big deal for the students, especially for a supervisor like him who needed to change countries. Not everyone could accept leaving with the supervisor.

After seeing off several students, Xu Chuan wondered who would go back with him.

Among these four students, the most likely one is Gu Bing.

Of course, Gu Bing may not return to China with him, but the possibility is greater than that of the other three.

He didn't really care about this.

If you can follow him, he will be happy; if you don't follow him, he will just make arrangements.

...

The last two days of the report meeting passed quickly.

On August 9, under the arrangement of the organizer Brazil, and with a cultural performance full of unique culture, the nine-day International Congress of Mathematicians finally came to an end.

It is worth mentioning that nine days after the report meeting, the Brazilian police still failed to recover Professor Coucher’s mobile phone and medal.

Finally, at the closing ceremony, the International Mathematical Union held a special awards ceremony and re-awarded a medal to Professor Kaucher Birkar, which left no regrets.

"The security situation in Rio de Janeiro is really bad. A thief sneaked in at the International Mathematics Conference and stole the Fields Medal. Such a thing has never happened at any exchange meeting before."

At the closing award ceremony, sitting next to Xu Chuan, Fefferman sighed and said.

In the field of dynamic system mathematics, South America is very powerful, and can even be said to be at the forefront of the world. There are also many famous mathematicians who have come from here.

For example, top mathematicians such as Jacob Paris, Artur Avila, and Da Costa are all.

This is one of the reasons why this mathematics conference was held in Rio de Janeiro.

Although the International Union of Mathematicians was also concerned about the security situation in Rio de Janeiro, it did not expect it to be so serious.

Unexpectedly, the gold medal of the Fields Medal winner was stolen on the first day.

The attitude of the Brazilian police is such that even dogs will shake their heads after looking at it.

After the staff of the International Mathematical Union called the police, the Brazilian police only arranged for one police officer to come over to understand the situation and made a simple registration. They did not even call in the surveillance, and they seemed completely unwilling to deal with it.

Such a rotten attitude made many scholars participating in the conference completely disappointed with Brazil.

It is estimated that for a long time in the future, mathematicians and even scholars in other fields will not vote to hold conferences here.

Xu Chuan smiled and said: "The security is indeed terrible, but for Professor Coucher, this may be memorable. After all, he is the first person in history to win the Fields Medal twice."

"Of course, this will also remind him to take care of his belongings when going out in the future."

Fefferman was stunned for a moment, then smiled and said: "You are right. Winning the Fields Medal twice is definitely worth remembering. Maybe Professor Coucher should treat us to a big meal?"

After a pause, he continued: "How have you considered the immigration matter?"

Xu Chuan thought for a while and said, "I need to go back first, and we'll talk about it then."

Fefferman: "I still hope to continue to cooperate with you. The ns equation is a very good research direction. Even if we cannot prove it, we can still gain a lot from it."

Xu Chuan shrugged and said: "Cooperation has nothing to do with anything else. Now that the Internet and transportation are so developed, we can do it even from the ends of the world."

"That's true." Fefferman nodded, and continued: "It's just that there are some differences between communicating in person and over the Internet."

"Besides, I feel like you actually already have the answer in your mind."

Hearing this, Xu Chuan smiled and said: "The day I make up my mind, I will definitely call you and tell you."

Fefferman: "I'll wait."

...

After the International Mathematics Congress ended, Xu Chuan was also preparing to pack up and return to China.

After staying abroad for three years, it would be a lie to say that I miss home.

"Professor, are you still in the hotel?"

In the room, Xu Chuan was packing his things when his cell phone rang on the table. The call was answered and it was his student Gu Bing calling. It seemed that he had made a choice.

"Well, we're still in the hotel now." Xu Chuan responded.

"Okay, I'll be right over. Professor, please wait for me a moment." Gu Bing said and then hung up the phone.

Xu Chuan didn't pay attention and continued to pack his luggage.

After a while, the doorbell rang.

Opening the door, Gu Bing walked in from inside.

"Professor, will you work at the university after you return, or will you go somewhere else?"

Xu Chuan: "I should be a professor at Nanjing University."

Hearing this, Gu Bing nodded and said, "In this case, can I go back with you?"

Xu Chuan stopped his movements and asked: "Have you considered it? In fact, continuing to study with Professor Deligne at Princeton is also a very good choice, and with a Princeton diploma, it will be easier to find a job when you return to China in the future.

"

Gu Bing smiled and said: "It's pretty good. And if it weren't for you, my professor, I wouldn't have been able to get into Princeton. I applied to Princeton three times, but no one chose me."

After a pause, he continued: "What's more, Professor, you are a Fields Medal winner. With you, I can be a popular drinker in China..."

Before Gu Bing finished speaking, the doorbell in the room rang again.

Xu Chuan walked over and opened the door. The person standing outside the door surprised him.

"Amelia, why are you here?" Xu Chuan asked curiously, looking at the students standing at the door.

This chapter is not over yet, please click on the next page to continue reading! At the door, Amelia bent her crescent moon and said with a smile: "Of course I am looking for you, my mentor. Is it possible that there is someone else here?"

"Uh..." Xu Chuan was stunned for a moment, then smiled and said: "Come in first."

"Senior Brother Gu, you are here too."

Entering the room and looking at Gu Bing, Amelia said hello and then asked curiously: "Brother Gu, are you also going back to China with your mentor?"

"I also?"

Gu Bing looked at the youngest junior sister in surprise, paused, and then said, "Do you also want to go to China with your mentor?"

Amelia nodded and said with a smile: "I am very interested in China. I heard that there are a lot of delicious food and giant pandas there, so I thought I would study abroad there."

Gu Bing looked at Amelia in silence, not knowing what to say.

It was okay for him to go back with Xu Chuan, after all, China was his home.

Amelia followed, looking a little puzzling.

Not only was her father a professor at Princeton, Xu Chuan also arranged for him to have Edward Witten as his subsequent mentor. In addition, Princeton was obviously better than NTU. I don’t understand why she chose to go to NTU.

Not staying at Princeton.

"You want to go to China with me?" On the side, Xu Chuan just closed the door and walked over. After hearing Amelia's words, he almost lost his footing and stumbled with his left foot and fell to the ground with his right foot.

"Of course!" Amelia nodded.

The corner of Xu Chuan's mouth twitched and said: "Don't make trouble, your father is in Princeton, and I have already agreed with Witten. Why are you running to China with me?"

"I'm not making trouble." Amelia replied seriously: "I have already thought about it, and my father also agreed."

The corner of Xu Chuan's mouth twitched again, and he said helplessly: "No, why are you going to China with me? Princeton is very good, and it is more suitable for you than China."

Amelia waved her hand and said: "It doesn't matter whether you are suitable or not. What is important is that you can learn more. I think following you has a better future than following Professor Witten."

After a pause, she continued: "Besides, I can speak Chinese."

As she spoke, she spoke in Chinese: "I heard that China has a lot of delicious food. I want to eat all over China in the next few years!"

When Amelia spoke, Xu Chuan and Gu Bing were stunned.

Good guy, this is really Mandarin. Although it is not so standard, intermittent and disorganized, it is no longer a problem to use it for domestic communication.

"When did you learn Chinese?" Xu Chuan asked in surprise. He had taken care of this student for several months and had never heard of her knowing Chinese.

When I was at ipho before, I never saw Amelia speak Chinese.

"I started learning more than three or four months ago. I watched some teaching videos." Amelia smiled and said: "By the way, there is a website called bilibili in China. I watched a lot of videos on it. Chinese

It’s really interesting, one word can express so many meanings.”

"For example, when I watch a video of a quarrel, there are many meanings that are not meaning, meaning, and there are also many meanings that are not interesting. So is it interesting or not?"

Amelia opened her blue eyes and looked at Xu Chuan with interest: "I still haven't figured out what the meaning of that video is. Chinese is so interesting. Maybe I should go

Only by studying in China can we understand."

For a moment, Xu Chuan didn't know what to say.

If you could understand what it meant, it would be outrageous.

It only takes three or four months to master a foreign language, which is extremely difficult like Chinese. With Amelia's talent, given her time, she would probably be able to master dozens of languages.
To be continued...