At Mizuki University, Xu Chuan walked on an asphalt road shaded by trees.

After finding Xu Xiao's phone, he dialed her.

The bell rang for a moment and it was on.

"Brother! You actually called me?" On the other end of the phone, Xu Xiao's surprised voice was delivered.

Xu Chuan smiled, "What, I can't call you?"

"Absolutely! I'm your sweetest sister!" Xu Xiao said confidently.

Xu Chuan smiled and said, "Do you have time now? I'm at your school, come and see you."

"Really?" Xu Xiao asked in surprise.

"What are you lying to, I've had a meeting here in the capital in the past two days, so I'll come over to see you by the way." Xu Chuan said with a smile.

Xu Xiao: "Okay, it turns out that I was by the way! Hmph!"

The corners of Xu Chuan's mouth twitched: "Don't be poor, I'm here on the basketball court near the biology building now."

Xu Xiao: "Brother, can you wait for me, I'm doing experiments in the laboratory now, I can't leave, just wait a minute!"

Xu Chuan asked curiously, "Aren't you just a sophomore?" Why did you get into the lab?"

"Ingenuity, of course! Don't underestimate your sister, I've already learned everything in my undergrad! I'll be able to enter graduate school next year!" Xu Xiao said angrily.

[In view of the general environment,

Xu Chuan smiled and said, "Okay, how long will it take?" If I have to wait a long time, I'll just walk around."

"About half an hour to an hour, brother, you can get up to it first, and I'll call you when I'm done!"

Xu Chuan smiled and said, "Okay."

.......

Hanging up the phone, Xu Chuan glanced at the biological building not far away, but a trace of curiosity rose.

Xu Xiao, a sophomore, actually entered the laboratory, and it is estimated that the level may not be low, maybe it is with her mentor, but at least it shows that she still has some progress in academics.

But where would you go to get around?

After looking around, Xu Chuan thought about it and decided to go to Professor Yau Chengtong's side.

Mainly on the side of Mizuki University, he doesn't know any other familiar people.

Following the tree-lined path, Xu Chuan came all the way to the Qiu Chengtong Mathematics Center.

Found Yau Chengtong's office, although the door was open, he still knocked on the office door.

Hearing the voice, Mr. Qiu, who was sitting at his desk calculating something, raised his head.

When he saw the person who appeared at the door, he was stunned for a moment, then stood up with a smile and welcomed, "Yo, rare guest. What wind is blowing you?"

Xu Chuan smiled and said, "Come over for a meeting, and bring here to see my sister, but that girl is in the laboratory now, so I thought about coming to sit with you."

Qiu Lao smiled and said, "Welcome, welcome."

As he spoke, he got up to make tea: "Congratulations, you will be called Academician Xu in the future." The titles of Academicians of the Chinese Academy of Sciences and the Chinese Academy of Sciences were awarded in the same year, and you have broken another historical record."

Xu Chuan smiled: "I didn't expect it, I thought I could only get one Academy of Sciences, but I didn't expect the Academy of Engineering to report it."

Yau Chengtong smiled and said, "You deserve it, your contribution to the field of batteries and nuclear energy is enough."

After greeting for a while, Yau Chengtong took a sip of tea and said with a smile, "It's better to come by chance than to come well. It just so happens that I've been researching a problem for the past two days, and I'm in some trouble, can you help me take a look?"

Hearing this, Xu Chuan was a little curious: "Oh? What is it?"

Yau Chengtong put down the teacup, got up, picked up a stack of manuscript paper from the desk, and handed it over.

Xu Chuan took the manuscript paper and flipped through it, and the equations and equations on the manuscript paper made his eyes show a hint of interest.

Halfway, he raised his head to look at the old man in front of him, and said with a smile, "Old Qiu is really old and strong

Minus the wisdom and courage of the year, I actually advanced the KZB equation to this point."

With his mathematical ability, he can't say that he can fully understand these calculations and equations on the manuscript paper after looking at them, but at least he can understand them roughly.

I have to say that Yau Chengtong is really worthy of being praised as the "Emperor of Mathematics" by Harvard University.

In his early seventies, he is still researching world-class problems, not to mention the ability to take them a big step forward.

The so-called KZB equation is a top-level problem in mathematics, which is derived from the KZ equation and connects the subfields of mathematics such as vertex operator algebra, representation theory, and Riemannian geometry.

KZ was first proposed by two mathematicians, Knizhnik and Zamolochkov, and later Professor Bernard extended the KZ equation to a more general Riemann surface, which is called the KZB equation.

To put it simply, the KZB equation is somewhat similar to the NS equation, and both of them are more relevant when studying this equation.

The NS equation is fluid mechanics, while the KZB equation is a thermonuclear equation and an index theorem.

.......

Hearing Xu Chuan's praise, Qiu Chengtong smiled and said, "What is old and strong, it's just a hobby in your spare time."

Xu Chuan gave a thumbs up, this β pretending to be his suit!

It's rounded.

Smiling, Qiu Chengtong continued, "Speaking of which, this has something to do with you."

"While researching this, I once read your paper on the proof of the eyl-Berry conjecture, in which you gave me some inspiration by constructing a counting function linked to a fractal drum."

"In the second part of the manuscript paper in your hand, I have defined and studied a special subclass of global and formal elementary sphere functions, which is called the global and formal n point sphere functions."

"The limit of the correlation function of the boundary ess-Zuno-itten conformal field theory on a cylinder is the formal n point sphere function when the positional variables tend to be infinite, and I have some trouble pushing it towards the eigenstate boundary values of the quantum spin oser system related to the n point sphere function."

"I wonder if you have any good ideas?"

Qiu Chengtong looked at Xu Chuan with a smile, if there is anyone in today's mathematics world who can surpass him in mathematical research, this young man in front of him is definitely one of them.

Xu Chuan put down the manuscript paper in his hand, frowned slightly and began to think.

After thinking for a while, he shook his head and said, "This problem is difficult, and I'm afraid it won't be solved in a short time."

"And to be honest, I don't have a deep understanding of number theory, and I don't know a lot about this field."

Indeed, in the field of number theory, his research is indeed not very deep. Whether it's in the previous life or in this life, I basically haven't studied much in depth.

However, there are many well-known conjectures in this area, such as the Riemann conjecture, the Goldbach conjecture, the twin prime conjecture and so on.

Qiu Chengtong thought for a moment, and then said, "If you rely on your intuition alone, where is it most likely to solve this problem?"

"Intuition?"

Xu Chuan thought for a moment and said, "Fundamentally, the eigenstates of the quantum spin oser system related to the n-point sphere function are also the common eigenfunctions of the commutator family of first-order differential operators.

"Of course, I don't have a deep understanding of this matter, so let's just say it casually, don't let me mess you up."

After listening to Xu Chuan's words, Qiu Chengtong lifted his glasses and thought about it.

"Do you use a first-order differential operator to make a commute? Isovariant differential entanglement of the combinatorial structure to cut into ......"

After thinking for a while, Qiu Chengtong's eyes had a hint of thoughtfulness.

Immediately, he raised his head and said with some excitement: "No, this may really be a feasible path, and the operator may be able to explicitly give a new approach by folding the classical dynamic r matrix and the related dynamic k matrix."

With that, he quickly got up and walked to the corner, dragged a moving blackboard out of the corner, and began to push on it.

........

PS: The second is to ask for a monthly pass