Princeton.

The office of the Institute of Advanced Studies.

Wei Wen, sitting at the desk, stared at the draft paper on the table and pondered.

About 19 years later, after leaving from Princeton, Lu Zhou introduced him to Professor Edward Witten and studied mathematics and physics.

Wei Wen was very excited when he first read the blog under Professor Wei Teng.

But if you are doing mathematics and physics, or even knowing about this direction, you can't hear the name of Witten.

However, reading a blog under the big cow is not an easy task. This excitement did not last long, and he gradually began to feel the difficulty.

Because of the frequent trips to the side of the cern, Witten's stay in Princeton for a year is less than a third. So most of the time, he can only face academic difficulties alone.

It was also after the worship of Professor Wei Teng that he finally understood the teacher Luo, who had not been able to graduate for so many years. And he also finally realized that he is always tired of guiding them to complete their studies, and how much they care for them.

Even if he has been graduating for more than a year, he will still find a way to help himself when he encounters an unsolvable problem.

For example, entrust him to a scholar of knowledge...

With two cups of coffee, he walked beside him, and Professor Fefferman placed a cup of coffee next to him, asking the temperature and the opening.

"Is there a way of thinking?"

"Not yet."

"Do you need help?"

Wei Wen shook his head and stared at the line of calculations on the paper, continuing to work harder.

"No, thank you, you have given me enough help... Give me another ten minutes, I feel like I will find the answer, it will be a little worse."

"I am not sure enough for ten minutes, or two hours," Professor Fefferman looked at the watch on his wrist and continued. "I have a class of differential equations for a while, until six o'clock, you are I can find me at the Office of the Director of the Department of Mathematics at Princeton University."

Wei Wen said: "I am sorry that I have taken up so much time."

"Nothing, I am not very busy recently." Dr. Fefferman smiled casually and said, "Not to mention that Professor Lu has also helped me a lot. He is not here now, what if you have anything?" Question, ask me the same."

Wei Wen smiled in his heart, but did not speak.

Although he probably can feel that Professor Fefferman really does not care too much, but in this person's situation, his heart is even more embarrassing.

Maybe this is the cultural difference.

Just then, a knock at the door came, and soon a man with glasses and looking at the young man came in.

It seems to recognize him, especially when he saw the stack of a4 paper in his hand, and Fefferman’s face suddenly showed some nerve-racking expression.

As if it was just proof of his guess, the man shook his paper and said. Professor Fefferman, Professor Sanak of the editorial department of the Mathematics Year, asked me to bring this paper to you. He asked me to convey to you euphemistically, and I hope that you will be the reviewer of this paper. ”

"Then you remember to tell him for me. This expression is not euphemistic at all. I hope that next time he can send the review invitation and the paper to my mailbox, instead of sending it in the same way," looked at the person. The overwhelmed assistant, Professor Fefferman shrugged and said, "...and, in two days I have a vacation, and trouble him to find someone else."

"Mr. Sanak expected that you would say that," the assistant continued. "He told me to tell you that you are the most suitable candidate. This paper is only for you to be able to review the manuscript."

Staring at the assistant for a while, Professor Fefferman, who had coffee in his hand, gave up and sighed.

"Well, you take it over."

He has not been particularly good at deciding other people's requests, especially from the areas he is good at.

See Professor Fefferman agree, the assistant immediately smiled and handed the paper over and said: "Good professor."

After the paper was delivered, the assistant did not stop at the office and left quickly.

After a while, Classy, ​​Feuffman couldn’t find time to read it, so he simply flipped it twice.

There are no names on the paper.

This double-blind review will occasionally occur.

Fefferman roughly speculated that either the contributor was an acquaintance he knew, or he was a colleague at the Princeton Institute of Advanced Studies or a university.

But these are not the main points.

Even if he guessed the author from the style of the paper, he would not release water on the manuscript because of the acquaintance's relationship.

"The proof of the existence of the solution of the Yang Mills equation? Shouldn't this paper be given to Witten? I bet he is more interested than me."

Seeing the title of "exaggerated", Fefferman picked up his eyebrows and continued to look down with interest.

But soon, he snorted and his brows shook slightly.

He noticed the change in his expression, Wei Wen asked under hesitation.

"What happened?"

Staring at the paper for a while, Professor Fefferman suddenly shook his head with a smile.

"……It's nothing."

He now knows exactly why Sanak insisted on handing this paper to him for review.

"1 manifold... there is also a partial differential geometry method for partial differential equations," the index finger swept over the a4 paper with ink on it. Professor Fefferman smiled and said with a bit of emotion. "Can There is only one person who applies this theory to this level."

Wei Wen's look is slightly moving.

“Professor Lu’s paper?”

"Yes," Professor Fefferman nodded and continued. "The existence of the solution to the Yang Mills equation proves that he has not stopped to move forward in mathematics."

Hearing the contents of the paper, Wei Wen took a sip of coolness, and the shock in his heart overflowed with words.

Continuously challenge two thousand problems...

Is this still human?

Sitting back at the desk, Professor Fefferman took the phone out of his pocket, opened the address book, and called his doctor and assistant.

"Hey, Lewis, are you free now? About half an hour later, there is a class with partial differential equations. Regardless of whether you have time or not, I hope that you or you can help me find someone to go for me."

"...well, I have something to do here."

"Very important."

A total of three sentences.

After explaining the matter clearly, he hung up and placed the phone on his desk.

Looking at the paper on the table, his pupils began to flash with excitement.

Let me have a good time.

This left Princeton's first year.

Your progress in mathematics is progressing, or you are regressing...