The suburb of Langley, on the border of Virginia and Washington, D.C., United States.

There are two buildings hidden in the bustling business district. In a spacious and bright office in the New Headquarter Building to the west, Director Burns is listening to a report.

"...The Chinese mathematician Qiao Yu you just mentioned solved the Riemann Hypothesis, so this is great?"

"Yes, the Riemann Hypothesis is one of the most important problems in mathematics."

"So will this issue have any negative impact on national security? For example, if China has the answer to this question, will it pose some threat to us?"

"Well, it actually doesn't make sense that way. To put it simply, the answer to this question is open to the world. The ones who check whether the answer is correct are American mathematicians. They just say it's solved..."

"Oh, needless to say, I understand what you mean. He is a theoretical mathematician."

"Yes!"

"Well, I know that although Johnson is a professional, this problem is not that simple. We don't need to offend China now because of a theoretical mathematician.

What they like to do most is to disclose their research results to the world, just like science has no borders, right? So there is no need to be so nervous, just relax."

"but……"

"No but, we all know this is not a good time. Of course we can try to persuade him to stay. After all, this is a beautiful country with a freer communication environment.

So you can think of a way from this aspect. This Qiao Yu is so young after all, maybe you can think of a way to let him know how beautiful this place is. Are you right?"

"Of course, that's a good idea."

"Then let's do it." Burns finally nodded and determined the general direction.

He does not need to be responsible for specific affairs. In fact, it is similar all over the world. Professional matters are done by deputies.

But he needs to grasp the general direction and restrain the professional deputies. After all, these professionals often do not have much of an overall view.

Although Burns doesn't understand mathematics, he understands the current situation! Are you kidding me? At this time, you are going to anger China for a mathematical genius who is engaged in theory?

Do you really think it's still twenty years ago? He doesn't want to be in this position and have to take the blame for something like this before his butt is warmed up.

Even if we really want to do something, at least we have to wait until Arlington County can really stand up.

A bunch of pig teammates!

…

China, Beijing.

Qiao Yu really didn't care about how Frank was doing or whether he was registered somewhere.

There is no way, he has been living too full a life recently. He has no time to think about any other messy things.

Almost all the things accumulated on the Xiaoyu Computing Platform have been completed. There is still about half a month until the start of the World Congress of Mathematicians on July 23.

So Qiao Yu thought about going back to Star City again.

After all, I have pretty much done everything I need to do in the capital. I have also obtained a visa to attend the World Congress of Mathematicians.

Even if the Xiaoyu computing platform has not fully met the predetermined requirements, it is because the computing institute is not doing enough and it has nothing to do with him.

Speaking of which, he hasn't visited his hometown for a long time. It's definitely not to return home in fine clothes or to continue dating.

The main reason is to deliver the manuscript to Zhou Shuang. Not to mention that it is during the summer vacation. It is only natural for students to go home during the holidays.

The most important thing was that Qiao Yu felt that he really couldn't stay any longer, no matter in Yanbei or Huaqing.

Professors come to visit me almost every day now and discuss a variety of mathematical issues with him, such as the future direction of mathematical development under the modal axiom system.

Qiao Yu felt like his head was dizzy.

Especially those who worked on partial differential equations really made Qiao Yu feel speechless. They actually wanted to transform the solution of partial differential equations into a geometric flow problem on the modal path Γ.

According to these professors, many solutions to partial differential equations can be handled by methods of separation of variables or eigendecomposition methods, for example based on Fourier or eigenmode decomposition.

In a sense, the generalized modal axiom system provides a natural framework in which these characteristic modes can be used as basis vectors of the modal space.

In this way, theoretically, the modal path Γ can be further introduced to quantify the relationship between these modes, and even geometric modeling of nonlinear terms can be performed.

Qiao Yu thought what they said made sense, but the problem was that he had no interest in partial differential equations.

However, Director Tian has also researched partial differential equations. Therefore, many of the people who come here are fellow students. These people may be his helpers in the future, so it is difficult to rush in and it feels like a headache to talk...

Under this situation, if he could go home with Qiao Xi, he could successfully avoid these professors who were eager for knowledge and have a perfect summer vacation.

To put it bluntly, enjoying Xia Keke's admiring gaze and praising him with the soft and waxy voice of a southern little potato is much more comfortable than being harassed by a group of professors every day?

It's a pity that Tian Yanzhen rejected it, and those words directly destroyed all his little thoughts.

"Do you still want to go to the conference in Philadelphia? Do you still want to get the bonus?"

"Of course I want to go. Maybe I can win the Fields Medal! Grandpa Shi said that he wants to see me win the award with his own eyes."

"That's it. Do you think that if you go to Philadelphia, you just need to take a plane there and then fly back? You will have classes in two days."

"Going to class again?"

"Well, some courses on safety and thinking when going out. In short, it will be good for you to learn more."

"Um... are they similar to those confidential courses before? It won't be that teacher Wen who will teach me again, right?"

"No. Don't ask so many questions. You will know the day after tomorrow."

"Can I ask who invited the teacher this time?" Qiao Yu asked.

"Chief Engineer Yu. Your algorithm was mentioned in the report submitted by Chief Engineer Yu. The original words are that the mathematical analysis method you created will greatly speed up the moon landing project.

At the same time, it will greatly promote the future development of China's aerospace engineering and new materials. So when you go to Philadelphia this time, you will not only take safety courses, but also have someone to protect you."

Tian Yanzhen said casually. Apparently he was also pulled in for questioning. He even saw the report from the chief engineer.

Qiao Yu nodded, and some past events when dealing with Yu Yanjiang came to mind. Although his mentor told him that the chief engineer was stingy, the boss was still very discerning.

Well, in short, it is more interesting to learn knowledge in class than to talk about mathematics with a bunch of professors.

The teacher Wen who gave him a course on confidentiality left a very deep impression on Qiao Yu. He was very knowledgeable and could pick up various cases at his fingertips.

This made Qiao Yu even look forward to the next course. After all, knowing this, he had a lot more things to talk about with those inexperienced guys.

But after thinking about it, Qiao Yu asked seriously: "Um, Director Tian, ​​does Chief Engineer Yu mean that there might be any danger if I go to a conference?"

Tian Yanzhen replied directly: "Don't worry, your ability to attend the conference this time has been specifically discussed at a meeting. For safety reasons, we still need to nip it in the bud.

However, if you really make Xiaoyu Computing Platform famous after your trip this time, it will be more difficult to go out next time. So it will definitely be good for you to communicate more in the limited time.

Okay, if you want to go back to Star City, you can wait until you come back from Philadelphia and I will grant you a week's leave. If nothing else, you can go and do whatever you want, I will go out later."

Qiao Yu nodded, and his mood instantly improved.

There was a special meeting to discuss whether he could attend the World Congress of Mathematicians... Well, this probably means that he is now a big shot, right?

"Is there anything else?" Tian Yanzhen asked, looking at the student who still refused to leave despite the eviction order.

"Well...it's nothing to do actually. I just wanted to ask if my security level is quite high now?"

"Do your research carefully and don't spend every day trying to find out what is available or not!" Tian Yanzhen scolded.

"Oh!" Qiao Yu turned around and went out, and his mentor's faint voice came from behind.

"When you go out this time, the security level is higher than that of Mr. Yuan! You have also specially arranged invisible protection personnel. Are you satisfied?"

Hearing Director Tian's words, Qiao Yu turned around and glanced at Director Tian. Her mood became even more exciting.

He hasn't done any research in a sensitive direction yet, yet he is being treated like this! What if he becomes the person in charge of some important research project in the future?

After all, being taken seriously means making more money!

…

Tian Yanzhen was talking about the day after tomorrow, but the next day Tian Yanzhen called Qiao Yu into the office again and introduced two people to him.

From Qiao Yu's perspective, one was an old man who looked about forty years old, and the other was a young man in his twenties.

"Come on, Qiao Yu, let me introduce you. This is Zheng Xiwen, who is mainly responsible for some of your safety training during this period. This is Zhang Mingyu. They will be with you as ordinary scientific research entourage during the Philadelphia conference."

As soon as he entered the door, Tian Yanzhen introduced the two of them before Qiao Yu could take a second look.

"Hello, Teacher Zheng, Hello, Teacher Zhang."

Qiao Yu immediately said hello politely. After all, he was the security personnel around him.

"Hello, Qiao Yu. But what Academician Tian just said is not comprehensive. In fact, it is not just during the Philadelphia conference. From today on, the two of us will be with you."

The older Zheng Xiwen said with a smile. Zhang Mingyu next to him just smiled slightly at Qiao Yu and nodded in greeting.

"Ah? No? Then where do you live?" Qiao Yu blinked and asked.

After all, the place where he lives now is just a one-bedroom apartment. There is really no place for two people to stay.

"It's okay, your room downstairs has been sorted out. We will live downstairs during this period. You don't have to feel uncomfortable, we won't interfere with your daily life.

It's just that if we stay in contact for a while, it will be easier to cultivate a tacit understanding between us. It will also make it easier for you to get used to dealing with us after you go abroad." Zheng Xiwen explained with a smile.

Qiao Yu asked: "Oh, that's it. Director Tian said I still have to go to class? Are the classes scheduled at a fixed time every day?"

"Actually, it doesn't have to be that troublesome. Our classes are very flexible. As I said, the main thing is tacit understanding. Isn't there still half a month left? We only need to have daily communication.

In fact, as long as you cooperate enough with our work, there won’t be much of a problem in other aspects. Many things in this area can’t be taught in class, and they are mainly taught in life.”
To be continued...