"of course can……"

Unexpectedly watching Prof. Fefferman, Lu Zhou made a gesture of asking for the position in front of the whiteboard. bookmark our website

Picking up the marker, Professor Fefferman stared at the whiteboard and thought about it for a while, then he wrote it on it.

The time for class has arrived, but no one is sitting in the classroom.

Everyone, including Lu Zhou, stared at the contents of the whiteboard.

Gradually, looking at Prof. Fefferman's steps, Lu Zhou's eyes were slightly brighter.

Wonderful...

The interesting place for mathematics is here.

A path that doesn't work, no matter how long it takes, you can't walk out of the maze.

However, a seemingly feasible idea does not even need to be close to the exit. From the moment you embark on this idea, you can have the feeling that the victory is ahead.

Although Fefferman has not yet written the final step, Lu Zhou can basically be sure that his ideas are not absolutely correct, but there is a probability that at least 90% is feasible!

Sure enough, the big cow did not let him down.

Smoothly fill the rest of the whiteboard, Professor Fefferman draws the last stroke in the last row.

There was a commotion in the classroom, although the content was more difficult for undergraduate students, but here is Princeton, sitting here at the top of the discipline contempt chain of mathematics students.

Not thinking about this step does not mean that no one can understand it.

Obviously, although they reacted a little slower, like Lu Zhou, they also saw the ingenuity of this idea from the steps of Professor Fefferman.

Retrieving the marker printed on the whiteboard, Professor Fefferman carefully read the calculations he had written from the beginning and the end, then smiled and said softly.

"This question is not easy... it is a bit difficult for undergraduates."

Lu Zhou coughed aloud: "So, it is just a question."

He was only going to meet the students. If not because so many people are interested in his research progress, he will not make this problem on the whiteboard.

What he didn't even think about was that the big man would actually sit in the back row of the lecture hall.

Putting his attention back to the contents of the whiteboard, Professor Fefferman touched the scum on his chin and said thoughtfully.

"Which ·δi·δj is defined as the Fourier multiplier of ξiξj/ξ2... But what I want to know is, even if you have the equation of pi, what is the meaning? I can't see it... it is convenient for me to answer ?"

"Of course," this is not something that is worthy of concealment. Lu Zhou smiled and said with pleasure, "However, I need a new whiteboard."

"The most important thing for Princeton is the place for the blackboard. I will help you get it."

After dropping this sentence, Professor Fefferman turned around and left the lecture hall, and quickly dragged a whiteboard back from the next classroom.

Seeing the whiteboard that Professor Fefferman had dragged for himself, Lu Zhou was no longer polite. He erased the writing on the whiteboard, picked up the marker and started the board, and detailed his steps. Explanation.

"If we get pi:=i-·δi·δj·j, we can use the non-diverging property of the conventional integral to make further..."

During this time, he has been busy experimenting. The research on the ns equation has only been carried out to the "pi:=?" step. As for the contents of the board on the whiteboard, it is actually derived on the spot.

This may sound a bit difficult.

But in fact, it is actually very easy to do this step.

After all, the idea is here, all he needs to do is to bring in the conclusions he has drawn before, and then continue to draw down along this line of thought.

However, this is easy, not without end...

The line was written on the whiteboard, and the tip of the hand on Lu Zhou suddenly stopped.

Seeing this step, Prof. Fefferman’s originally locked eyebrows suddenly provoked a sharp arc of interest.

Lu Zhou took back the marker in his hand and cast a line of sight on him.

"What do you think?"

Professor Freferman said to himself that the index finger was thoughtfully rubbing against the scum.

"It seems... a little bit interesting."

The eyes looked at the two men on the podium, and the students sitting in the classroom silently, for fear of making a little noise, interrupting the thinking of the two big men.

Throughout North America, there is probably no place to respect genius and respect knowledge more than Princeton.

After five minutes in the past, Professor Favorman’s face suddenly disappeared and said in a relaxed tone.

"It seems that this problem is not so well solved."

I stared at the white boat, and nodded in agreement: "You are right."

If it is so well resolved, the Cray Institute will not include it in the list of the seven major problems.

"But you can do this step, but it is beyond my expectation." Smiled, Professor Fefferman and Yan Yueshen said, "The ns equation is an interesting question, it is the basis of fluid mechanics, but also partial differential The classical proposition in the equation. If it can solve the overall existence of its smooth solution, it is not only for the glory of the human mind, but also has a profound impact on a series of related disciplines."

Diedone is one of the founders of the Bourbaki School. "Mathematics is for the glory of the human mind" is the famous saying he once said. Although Professor Fefferman does not agree with the views of the Bourbaki School, he quite agrees with this sentence.

Having said that, Professor Fefferman laughed and clap his hands and raised his hand.

"A very fulfilling lesson... Although I may say that I might be a bit self-satisfied. What do you think?"

When it comes to the last sentence, he looks back at the classroom, and those students who have not left the fart and stocks from the bench even if they have already finished classes.

And responding to him, naturally it is the applause of the classroom.

Listening to the thunderous applause, Lu Zhou smiled embarrassedly.

Although he did not speak, his heart was actually somewhat smug.

The sense of accomplishment that the classroom brings to him is a completely different experience than a serious report.

It seems that even the entire semester has not seen each other, but his students still like him very much.

"Right, I made this question," listened to the applause in the classroom gradually subsiding, Professor Fefferman suddenly remembered a thing, pointing to the calculations on the whiteboard, said in a humorous tone, " Is there any use for your promise?"

Lu Zhou stunned slightly and wondered.

"committed to?"

Sitting in the front row, the girl with the long-haired maroon, who had previously asked him the first time, raised her hand and said with great interest.

"Professor, you said, if you made this question, you will accept him as your doctor."

There was a creaking sound in the classroom.

Lu Zhou did not go to see the student who took the lead, and coughed and said: "You still don't make a joke."

"No, no, I am not kidding," Professor Fefferman laughed. "If you don't mind receiving another Ph.D., I don't mind reading a Ph.D. here."

Although Professor Fefferman's tone is not like a joke, Lu Zhou knows that he must be joking.

Compared with Professor Faltins who has left Princeton, Professor Fefferman is completely at the other extreme in terms of "arrogance." At the Princeton Institute of Advanced Studies, where he was genius, only he would play such a joke without hesitation.

Seeing Lu Zhou's helpless expression, Fefferman coughed softly, stopped jokes, and changed into a serious tone.

"Well, since you didn't plan to receive another doctor, I hope you can promise me a request."

Lu Zhou did not easily promise, but asked: "What request?"

"About the existence and smoothness of the solution of the three-dimensional incompressible navier-stokes equation," paused for a moment, Professor Fefferman smiled and said in a sincere voice, "I hope to work with you to solve this problem!"