Princeton.

The office of the Institute for Advanced Study.

Wei Wen, who was sitting at the desk, was staring at the scratch paper on the desk and meditating.

It was about 19 years ago, after leaving Princeton, Lu Zhou introduced him to Professor Edward Witten to work in the direction of mathematical physics.

When he first studied for a PhD under Professor Witten, Wei Wen was still very excited.

But anyone who does the direction of mathematics and physics, or even knows something about this direction, it is impossible not to have heard of Witten's name.

However, it is not an easy task to study for a doctorate under Da Niu. The excitement didn't last long, and he began to feel the strain.

Because of his frequent visits to CERN, Witten spends less than a third of the year at Princeton. So much so that most of the time, he had to face academic difficulties alone.

It was also after worshipping Professor Witten that he finally understood why Professor Lu's Senior Brother Luo had not been able to graduate successfully for so many years. And he finally realized how much Professor Lu, who usually took the trouble to guide them to complete their studies, took care of them.

Even, even though it has been more than a year since he graduated, when he encounters an unsolvable problem, he will still help him find a way.

For example, entrusting him to a scholar he knows......

Walking up to him with two cups of coffee, Professor Feverman asked in a gentle tone, placing a cup of coffee next to him.

"Got an idea?"

"Not yet."

"Need help?"

Wei Wen shook his head, stared at the line of calculations on the paper, and continued to fight.

"No, thank you, you've helped me enough...... Give me another ten minutes, and I feel like I'm almost there, just a little bit close. ”

"Ten minutes is probably not enough, but two hours," Professor Feverman continued, glancing at the watch he wore on his wrist, "and I have a class on differential equations in a moment, and you will be able to find me in the office of the head of the Department of Mathematics at Princeton University until six o'clock." ”

Wei Wen was ashamed and said, "I'm sorry for taking up so much of your time. ”

"It's okay, I've not been very busy lately," Professor Feverman smiled casually after taking a sip of coffee, "What's more, Professor Lu has also helped me a lot, he is not here now, if you have any questions, ask me the same." ”

Wei Wen smiled bitterly in his heart, but he didn't speak.

Although he could probably feel that Professor Feverman really let him not care too much, he was even more ashamed of this favor.

Maybe it's a cultural difference.

Just then, there was a knock at the door, and soon a young man with glasses and a good face walked in.

It seemed to recognize him, especially when he saw the stack of A4 papers in his hand, and Faifman's face suddenly showed a somewhat nerve-wracking expression.

As if confirming his suspicions, the man shook the paper in his hand and spoke. "Professor Feverman, Professor Sanak from the editorial board of the Annals of Mathematics has asked me to bring this paper to you. He asked me to convey to you euphemistically that he wanted you to be the reviewer for this paper. ”

"Then you remember to tell him for me, this expression is not tactful at all, and I hope that next time he will send the review invitation to my mailbox along with the paper, instead of sending it to my door," Professor Feverman shrugged his shoulders and said as he looked at the bewildered little assistant, "...... Besides, I'll have a vacation in two days, so please ask him to find someone else. ”

"Mr. Sanak expected you to say that," the assistant continued, "and he told me to be sure that you were the most suitable person and that only you were capable of reviewing this paper. ”

After staring at the assistant for a moment, Professor Feverman, who had coffee in his hand, gave up and sighed.

"Okay, you can bring it."

He has never been particularly good at making decisions about other people's requests, especially from areas he is good at.

Seeing that Professor Feverman agreed, the assistant immediately handed over the paper with a smile and said, "Okay professor." ”

After the paper was delivered, the assistant didn't stop in the office much longer and left the place quickly.

There was still a class to go to, and Feverman couldn't find time to peruse it at this time, so he simply flipped through it twice.

There is no name on the paper.

Occasionally, this kind of double-blind review occurs.

Mr. Feverman roughly guessed that either the contributor was an acquaintance he knew or a colleague who worked at the Institute for Advanced Study in Princeton or a nearby university.

But that's not the point.

Even if he roughly guesses who the author is from the style of the paper, he will not put water on the review because of acquaintances.

"Proof of existence of the solution of the Young Mills equation? Shouldn't this kind of paper be shown to Witten, I bet he's more interested than I am. ”

Seeing this line of "exaggerated" headline, Feverman raised his eyebrows slightly and continued to look down with interest.

But soon, he sighed softly, and his brow furrowed slightly.

Noticing the change in his expression, Wei Wen hesitated and asked.

"What's wrong, Professor?"

After staring at the paper for a while, Professor Feverman suddenly smiled and shook his head.

“…… It's nothing. ”

He now finally knew why Sanak insisted on giving him the paper to review.

"L manifold...... And the partial differential geometry method of partial differential equations," said Professor Feverman, smiling with his index finger over the ink-printed A4 paper, "and there is only one person who can apply this theory to this extent." ”

Wei Wen's expression was slightly moved.

"Professor Lu's paper?"

"Yes," Professor Feverman nodded, and continued, "proof of the existence of the solution of the Young Mills equation, it seems that he has not stopped moving forward mathematically. ”

Hearing the content of the paper, Wei Wen gasped, and the shock in his heart was beyond words.

Challenge two millennial puzzles in a row......

Is this still human?

Returning to his desk and sitting down, Professor Feverman took his phone out of his pocket, flipped through his address book, and called his Ph.D. and teaching assistant.

"Hey, Lewis, are you free now? There's a partial differential equation class in about half an hour, and whether you're free or not, I'd like you or you to help me find someone to take it for me. ”

“…… Well, there's something going on my side. ”

"It's important."

Three sentences in total.

After explaining the situation, he hung up the phone and put it on his desk.

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

Let me see.

This left Princeton for the first year.

Have you improved or regressed in your math attainments......

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