Chapter 280 After All, He Is My Student (Asking for Monthly Votes)

Two days passed quickly.

On the day of the lecture, the campus of Nanjing University was crowded with people.

Not only mathematicians and physicists from all over the world, but also many students and professors who did not receive invitations came to join in the fun.

The auditorium of the old campus was crowded with people. The auditorium that could accommodate more than a thousand people was not only empty, but also crowded with scholars who came to listen to the lecture in the middle of the corridor.

There were no seats, so these people sat on the ground.

In fact, those who could squeeze in were lucky. Outside the auditorium, there were more people who came a step late and did not even squeeze into the auditorium.

In the front row, Witten glanced at the figure walking by and asked with a smile: "I didn't expect you to come too."

Sitting next to him was Professor Kartik Srinivasan, a top expert in the field of physics and a master in the field of contemporary fluid mechanics.

Although few achievements in the field of fluid mechanics have won the Nobel Prize, no one can deny the importance of this field.

In particular, top experts in this field play an important role in the development of a country.

Professor Srinivasan is such a top-notch person. He is a tenured professor at Harvard University in the United States. He has solved many difficult problems in fluid and turbulence. He has also participated in the design of space shuttles and the control engineering of controlled nuclear fusion fluids at Stanford University and other famous projects.

Srinivasan: "NS equation is the most important problem in fluid mechanics. Professor Xu is a Nobel Prize and Fields Medal winner. No one can refuse his lecture."

"Even if it is just a phased result."

As he said, he looked around and continued: "It's not just me. I see a lot of acquaintances here."

"As for you, I'm curious why you, who is engaged in theoretical physics, are here."

Witten smiled and said: "I am not only good at physics, but also mathematics."

After a slight pause, he continued: "What's more, he is my student."

It must be said that when he was in Princeton, breaking the principle and accepting Xu Chuan as a student with Deligne was something he was proud of, and it was also the most correct thing.

Srinivasan shrugged and said, "It's a pity that Professor Xu doesn't seem to be very interested in high-energy physics and theoretical physics. He cares more about mathematics."

Witten smiled and said, "It seems that you have been staying at Harvard and haven't been out much, so you don't know much about the outside world."

"I believe you must have heard about the recent news about inert neutrinos and dark matter in the physics community?"

Srinivasan nodded and said, "Of course I have heard."

"That's what he discovered."

"What?"

Professor Srinivasan looked confused. He was an applied physicist and was not very interested in theoretical physics. Unless it was the top results or the results he paid attention to, he rarely learned about it.

The last time the theoretical physics community broke out that traces of dark matter were discovered, he learned about the situation. It was the result of CERN, but because it was still in doubt, he was not interested.

When dark matter is really discovered, there is no rush to learn about it.

After all, the theoretical physics community is like that. It takes at least a dozen years for a new discovery and a new theory to be verified or applied.

For him, it is better to know what his peers are doing than to pay attention to this.

So he really doesn't know who discovered dark matter.

On the side, Witten smiled and said, "Are you surprised? After all, he is my student. It's nothing to make some achievements in theoretical physics."

Srinivasan glanced at Witten. His complacent tone made it seem as if he discovered dark matter.

In the auditorium, it was not only the scholars sitting in the lecture seats who were lively, but also the staff who maintained the order of the lecture site.

These staff and teachers in charge of logistics have not rested since yesterday.

Not only do they have to arrange the site, carefully check the nameplates and seats, but they also have to receive the audience who come to the lecture, and pay attention to the situation at the scene at all times.

This kind of top-level lecture is for the top scholars in the world, and there are so many people. If there is any unexpected situation, it will really make the whole world laugh.

Moreover, this is the first time that Nanjing University has truly stood on the international stage and shown itself to the world. It can be said that this lecture is related to the future of Nanjing University.

For today's report meeting, Nanjing University President Liu Gaojun even sat in the backstage in person to prevent accidents.

"Professor Xu, how do you feel? Is there any problem?"

In the backstage, Liu Gaojun asked Xu Chuan, who was sitting next to him, with concern. This person was the real protagonist today, and Nanjing University was just promoted along with him.

Without him, Nanjing University would never have been able to hold such a top report meeting.

Xu Chuan smiled and said, "President, you have asked me this question three times. Don't worry, there is no problem."

After getting a positive answer again, Liu Gaojun breathed a sigh of relief and smiled, "Only you can be so calm. Look at me, I am so nervous that my forehead is sweating."

This is indeed true. In order to hold this report meeting smoothly, he was so worried that his forehead was sweating, even if the air conditioner in the backstage was turned up high.

Xu Chuan smiled and shook his head.

For him, this was just an ordinary report meeting.

At most, because the NS equation is one of the seven millennium problems, it is a little special, attracting scholars from two different fields, mathematics and physics.

But this has happened before. In the previous life, when I gave a report on the existence and mass gap of Yang-Mills, both the mathematics and physics circles came together.

"Professor Xu, it's already 8:25, and everything is ready. Do you think I can go on stage now?"

In the backstage, a doctoral student who served as a temporary staff member trotted over and asked respectfully when he saw the man sitting leisurely on the chair without any nervousness.

This man is really a god. There are so many top experts outside, but he doesn't feel nervous at all.

If it were him, he would be so nervous that he would faint on the spot.

This is the gap between him and the big guys! The doctoral student sighed in his heart.

Xu Chuan nodded, said thank you, and stood up and walked towards the front desk.

Wearing a formal suit, Xu Chuan stepped steadily from the backstage to the stage of the auditorium and walked to the podium that had been arranged long ago.

When he appeared on the stage, the noisy and noisy sounds in the auditorium disappeared instantly, and the auditorium became quiet in an instant.

Instead, countless people cast their eyes on the podium at the same time, and the atmosphere was so tense that people stopped breathing unconsciously.

Being stared at by thousands of people in the audience, Xu Chuan did not feel too nervous.

After all, it was not the first time for him to stand in such an occasion, nor was it the first time for him to challenge a world-class problem.

Not to mention his previous life, he had stood on this level of stage several times in this life alone.

After simply testing whether the microphone on the podium was normal, Xu Chuan took a deep breath and spoke calmly and clearly:

"First of all, welcome everyone who has come from afar. Thank you very much for taking time out of your busy schedule to come here to attend this report meeting."

"Everyone's time is precious, I won't waste too much time, and I will get straight to the point."

As he said, Xu Chuan controlled the equipment on the podium and put out the PPT document prepared in advance.

And the interim results of the NS equation are as many as more than 200 pages, and he can't use that document as an explanation document.

After checking the screen behind him and confirming that there was no problem with the projection, Xu Chuan continued, "I believe that you have read my paper before coming here."

"So in the following time, I will only give a brief explanation of the proof process in the paper, and those references and processes that are not very important will no longer be explained in this report. I will spend more time explaining the ideas and key steps for proving the interim results of the NS equation."

"I hope this can answer any doubts you may have."

"Of course, the report is over. If you still have any questions in your mind, you can ask them in the final question session, and I will do my best to answer them for you."

"Next, I will start the report meeting on the interim results of the NS equation."

As the voice fell, Xu Chuan pressed the control device again.

The PPT projected on the screen behind him turned to a new page, and lines of formulas were presented to everyone.

"ρ*DV/Dt=ρf-▽p+μ▽V, which is the vector form of the NS equation."

". After changing the weak form, the initial value conditions are relaxed, and (v,υ,θ)(×)∈H*H*H becomes (v,θ)∈H(0,1),υo∈H(0,1)"

"There are some positive constants C and no η>0, so that for any (x, t)∈(0,1)(0,∞). It can be obtained that C≤υ(x, t)≤C, C≤θ（x, t≤C）, and."

". Introduce Harmonic equations with functions as coefficients replace Euler equations and are applicable to all turbulence, resulting in a universally valid set of equations. "

"Under normal circumstances, the turbulent region is the region where cosA evolves from being unable to approximate 1 to being close to 0, and a universally valid analytical solution is difficult to obtain."

"And the next step will be the key to the entire analysis."

". From here, introduce Fourier space and perform function approximation on it."

On the podium, Xu Chuan quickly explained his proof process in reference to the projected PPT.

Under the stage, the audience listened attentively, even many scholars in the back row who were gradually unable to keep up with the pace still widened their eyes and listened attentively with their ears perked up, fearing that they would miss any details.

In the front row, Deligne and Terence Tao sat together, looking at the young figure on the stage and communicating in a low voice.

Terence Tao: "A few years ago, I attended a Princeton exchange meeting. I ran into Professor Xu in the corridor and exchanged ideas with him."

"At that time, his thinking was quite jumping, and his understanding of mathematics was very deep. He didn't look like a 17 or 18-year-old boy at all."

"At that time, I was sure that he could make a path in mathematics in the future."

"But I didn't expect that after just a few years, he would stand at the top of the mathematics world, not only solving one of the seven millennium problems, but now he is heading for the second one."

Hearing Terence Tao's sigh, Deligne seemed to be lost in memories. After a while, he said: "He is the most outstanding, talented and hardworking student I have ever seen in the field of mathematics."

"When he was in Princeton, his learning ability was so strong that it surprised both me and Witten. The teaching of the two of us could barely satisfy his learning."

"I have never seen his thirst for knowledge in anyone except my teacher."

"During the time in Princeton, he had almost no entertainment activities. His favorite thing was to go to the Ivy League Club to sit and watch movies."

Tao Zhexuan sighed: "This is a weirdo even weirder than Perelman."

Deligne said: "Actually, it can't be said that way. Under normal circumstances, he is still very happy to communicate with people, and he is also good at integrating into the group, but he rarely does so."

After thinking about it, Deligne added: "Of course, it is indeed strange when studying problems. He likes to lock himself in a room like Perelman."

Shrugged, Deligne continued: "You know, mathematics is a subject that requires inspiration and communication. This kind of research method"

Tao Zhexuan shrugged and added: "It is indeed rare."

PS: The second update is sent to ask for monthly tickets