universal data

Chapter 322
325 chapter

Three days later, Peking University Mathematics and Science Innovation Practice Base.

Five mathematics geniuses from five universities gathered here again.

Professor Zhong Yongan didn't come this time, there were only five of them in the office.

"Since Professor Zhong said that the five of us will be fully responsible for this project, how about we sit down and discuss some detailed rules?" Wei Jun, a doctoral student at Peking University, said with a smile first.

Among the five people, Wei Jun could barely be regarded as half of the host, and the other four also nodded and sat on the long table in the middle of the office.

Regarding the position of the main seat, I am afraid that no one will sit back as the current situation is still confusing.Therefore, the five people sat on both sides of the long table, three on each side and two on each side.

The first topic meeting of the cross-school joint project started in this situation.

The five of them didn't know each other well. Perhaps some of them didn't know there was such a number one person until they met in person yesterday.For example... Cheng Nuo.

In short, the atmosphere on the conference table was very delicate. For a while, no one spoke, and everyone looked down at the documents in their hands.

cough cough...

In the end, Wei Jun couldn't just watch the atmosphere remain stalemate like this, so he had to be the first to speak, "Then, let me say some of my views first, which can be regarded as an introduction."

He took out a document from his hand, and his eyes suddenly became serious, "This is a project that I made three days ago, after I went back and took the document that Professor Zhong gave us and read it, based on my own understanding. Framework."

Wei Jun opened the file, bowed his head and said, "The name of the subject we are studying is called: Nonlinearization of Darboux Transformation Based on the Kaup-Newell Equation of Constrained Flow."

"From the point of view of the research branch, this is a subject in the field of geometry." Wei Jun smiled, "And my main focus is geometry, so I still have some opinions on this aspect, you can listen to it look."

"(1 + 1)-dimensional soliton equation nonlinearization method for spectral problems was first proposed by Cao in 1988. According to his description in "Discrete Line Spectrum 2N Viycin Manifolds", a continuous linear spectral problem can be The nonlinearization generates a finite-dimensional fully integrable Hamiltonian system..."

Although Wei Jun's narrations belong to the professional content in the field of geometry, they are not so advanced or uncommon. The other four people can easily follow his train of thought.

Wei Jun has been specializing in geometry since he was a graduate student, and it has been almost five years now.

In five years, Wei Jun learned not only some professional knowledge, but also some unique insights accumulated from experience.

"...for the Kaup-Newell equation, pt=-1/2pxx-2(qp^2)x, qt=-1/2qxx-2(pq^2)x...Therefore, I think, if we use the constraint Kaup -Backlund transformation of the Newell equation flow, one can find ∑N, j=1d?1j^d?2j=∑N, j=1dφ1j^dφ2j, thus generating two integrable symplectic maps with different variables!"

Wei Jun spent about 5 minutes talking about his own opinion.

Over there, Sheng Fei from Jiangsu and Zhejiang University saw that Wei Jun had finished speaking, and he couldn't wait to stand up and hold Wei Jun's hand, "Sure enough, heroes see the same thing."

Sheng Fei picked up one of his file folders and said with a smile, "The train of thought that Wei Jun talked about is almost the same as mine."

"Oh?" After saying this, Wei Jun also became curious, "Student Sheng, can you show me yours."

"No problem." Sheng Fei smiled and handed the document to Wei Jun.

Sitting on the seat of Wei Jun, he lowered his head and scanned Sheng Fei's documents for two to three minutes, and then handed them back to Sheng Fei with a smile, "Sure enough, the framework of the project constructed by me and Sheng Fei is similar, and the main points are basically the same. , As for the minutiae, if we really want to adopt this kind of research idea at that time, we will combine the strengths of the two."

"Three, do you have anything to say?" Wei Jun looked at Cheng Nuo and the other three who hadn't spoken yet.

Yang Xiao from Jiangsu and Zhejiang University shrugged his shoulders and smiled, and waved his hands, "I'm not as good as you two. I can construct the subject framework in three days. I can't learn this operation. Since both of you have the same idea, then I It’s not superfluous, just follow the framework of the two of you.”

Yi Ge, the only girl among the five, also blinked innocently, stuck out her tongue, and said embarrassingly, "A few days ago, I only cared about going out with a friend in Kyoto, so...but don't worry , this is definitely the last time, even if you assign me the task, I will definitely do my duty and complete it with quality and quantity!"

Well, it seems that the girl Yi Ge has not spared time to build the framework because of her playfulness, and even, I am afraid that she does not even have a full understanding of the specific content of the project.

However, none of this matters now.

After hearing Yi Ge's words, Wei Jun was slightly happy.

That being the case, Cheng Nuo was the only one who didn't ask for his personal opinion.

After returning home a few days ago, he asked a friend from the Department of Mathematics of Tsinghua University to inquire about Cheng Nuo's real identity. He was just a freshman in the Department of Mathematics of Tsinghua University.

Although he found out that Cheng Nuo had participated in the research of three subjects, this was not the reason for Wei Jun to put Cheng Nuo on the same level as himself.

In terms of resume, he has already participated in no less than ten research projects, large and small, and this is the first time he has had the opportunity to participate in a cross-university cooperation project.

As for Cheng Nuo, although it's good to have some dry food in his stomach, Wei Jun would never believe that a freshman student could stand on the same level as the four doctoral students.

"Student Cheng, what do you think?" Wei Jun turned to look at Cheng Nuo as if it was a routine, and asked with a smile.

He didn't mind bringing a paddling guy with him, after all, he was an undergraduate, and he was no different at all.

But, likewise, he didn't think Cheng Nuo would give anything meaningful.

"Ah, you're asking me?" Cheng Nuo, who seemed to be wandering off his mind, regained his wits and asked with a confused expression on his face.

This guy...hasn't he been distracted just now?

Wei Jun thought silently in his heart.

He said patiently again, "I want to ask, does Cheng Nuo think there is any problem with the project framework I mentioned just now. If not, we will carry out the project research according to that framework."

Wei Jun changed his words again.

Now he no longer expects Cheng Nuo, who was distracted just now, to say anything meaningful. He just hopes that Cheng Nuo can give a yes or no answer as soon as possible.

Cheng Nuo said with a smile without hesitation, "Senior Wei, the framework you mentioned just now is indeed not wrong."

Wei Jun's face brightened, "Then we..."

"Hey, wait." Cheng Nuo raised his hand and said with a smile, "I'm sorry, I haven't finished my sentence yet."

"There's nothing wrong with it. But, don't you guys think this framework is too complicated?" Cheng Nuo said with a smile.

(End of this chapter)