I reach the pinnacle of life by learning

Depression is only temporary.

Qiao Yu quickly cleaned up her emotions and returned to work.

The annual meeting of the American Mathematical Society (AMS) was held in mid-January. He hadn't stayed in Tianhai for a full week, and he was going to Denver again.

Fortunately, the process of AMS is much simpler than that of the World Congress of Mathematicians, and it is only three days.

After returning from the meeting, I can still catch up with the Spring Festival.

Before leaving, Qiao Yu said to Song Tianyu: "Don't worry, I'm not here to mess things up this time, I was just invited to participate in the annual summary. Nothing will happen."

Even so, Song Tianyu still contacted the local security company and assigned Qiao Yu two bodyguards with guns.

"It's been said on the news broadcast that the lives of foreign people are in dire straits." Song Tianyu was very serious, "You must protect yourself when you go out."

There have only been two mass shootings in the United States this year.Who knows if this kind of unlucky thing will happen to Qiao Yu's side.

Denver is close to the west of the United States, and the time difference between China and China is nearly 15 hours.Even more exaggerated than the time difference in Germany last time.

It was morning when Qiao Yu arrived, it was late at night in China, and the chickens hadn't crowed yet.

He got off the plane, and just as soon as he reported Song Tianyu's safety, he received a call from the security company.

It is said that this is the best local security company in Denver, and the staff selected are all retired special forces of the SEALs.

Looking at his size, he was about the same size as the bodyguard next to Bernard.

The annual meeting will be held at the Denver Convention Center, which is very close to the hotel where Qiao Yu stayed.

Because Qiao Yu fell asleep on the plane, Qiao Yu basically didn't have to suffer from jet lag, so he started to wander around with great interest.

The entire mathematics annual meeting is divided into three parts.

On the first day, the invited universities in the United States arranged exhibitions to show the achievements of their schools in the past year to the participating scholars.

The next day was an academic conference held by industry leaders, standing on a high ground to offer suggestions for the future development of the mathematics community.

On the third day, it was the award ceremony of the Cole Award, and there was also a party by the way.

Although the annual meeting will officially start tomorrow, the major schools have already arranged the exhibition areas several days in advance.

In the hall, the people in charge of the university were displaying display boards. Some schools had been completed, while others were still a mess.

The content on the exhibition board was not covered with a curtain, so Qiao Yu browsed one by one.

There are quite a few interesting math papers posted on it.

To be honest, since Qiao Yu stepped into the field of biology, although Qiao Yu did not give up studying mathematics, he didn't have much time to take the initiative to study.

He calculated silently.

Thanks to the existence of the draft book in his brain, Qiao Yu will not start to have a headache due to excessive use of his brain.

The time he stayed in front of each display board was different, some were long and some were short.

Fortunately, there are many scholars in the hall, and he is not the only one, so he does not appear obtrusive.

When he saw the penultimate display board, Qiao Yu stopped for a long time.

This is a Harvard University panel.Further on, there is Princeton.

His brows were furrowed, and he even repeatedly pinched his palm with his nails unconsciously.

The above content is too difficult, and it has reached an area that Qiao Yu has never deeply understood, so that he is a little distracted while reading.

It's like asking middle school students to take an advanced mathematics class. It's one thing to be interested, but another thing to be able to understand it.

After standing for an unknown amount of time, Qiao Yu felt that his legs were numb, and only then did he realize that his entire face was going to be stuffed into the display board.

Thanks to the fact that the annual meeting has not officially started yet.

Otherwise, if one person dominated the display board for so long, he would probably be ridiculed by the crowd.

"What did you see?"

Just when Qiao Yu was about to leave, the person beside him suddenly asked.

This is a middle-aged man with a bald patch on the top of his head, but the rest of the hair is as thick as a lion.High nose bridge, thick eyebrows, and sharp eyes that seem to be able to shoot two swords at any time.

The moment he saw the other person's face, Qiao Yu already knew his name.

Gregory Perelman.

The prover of the Poincaré conjecture, a living legend in mathematics.

The Clay Institute of Mathematics has awarded two million prizes so far.The second time was last year.

The first time was to Perelman, who did not accept it.

Perelman has not published the "Poincaré Conjecture Proof" paper in any academic journal, but posted it randomly on the Internet.The title of the entire paper does not mention this famous conjecture.

It wasn't until several colleagues in the United States received his brief email and read the papers on the Internet that they knew what contribution Perelman had made.

The other party didn't even have a professor title on top of his head, but any mathematics professor in any university in the world might not have the confidence to say that he was stronger than this person in front of him.

His profession is not a professor, but a mathematician.

Previously, the mathematics community in the United States had invited Perelman to give academic reports many times, but because of the excessive commercial exposure, the boss was very displeased, and he left the manuscript in the conference hall and walked away.

Qiao Yu thought that the American Mathematical Society would not invite this giant.

He calmed down and replied: "The exhibition report talks about discrete logarithms of hyperelliptic curves."

Perelman didn't show much expression, and continued to ask: "Is there any more?"

"Inductively summarizes the hyperelliptic curve analysis method..." Qiao Yu hesitated for a moment, "It seems to be a research specifically for Hodge's conjecture."

Interlacing is like a mountain, and the generation gap in mathematics is even more so.

The further you go, the fewer people will be with you.

Regardless of the fact that differential equations, topology, and functional analysis are all called mathematics, the leaders of the three fields stand together to explain their own research, and they may not understand what the other is talking about directly.

Just like the nationality is also Chinese, people from the Northeast cannot understand Hokkien.

Of course, not only people from the Northeast can't understand it, but people from Sichuan, Chongqing, and Hunan and Guangxi also can't understand it.

Therefore, Qiao Yu was not completely sure about his own judgment.

……

……

Not far away, several college students looked excited.

Some people even took out their mobile phones, turned off the flash, and took a quick photo of the position in front of the exhibition board.

"It's Perelman!" A chestnut-haired student looked as if he was about to faint, "Oh my God, this is the first time I've been so close to him."

"Who is that Asian next to him?" Someone asked blankly.

The person who spoke before suddenly looked at him with strange eyes: "Are you connected to the Internet through Tianyi 3G? That's Qiao Yu who proved the twin prime number conjecture!"

Charles couldn't help showing embarrassment: "That's it. In fact, my supervisor is also studying the twin prime number conjecture, and he has been studying it for six years... I heard that after it was proved, the professor was furious and has stayed behind closed doors. We don't dare to say more. ask."

And Qiao Yu and Perelman have communicated to another level.

Perelman: "You're right. He really wants to prove that Hodge's conjecture, or the weak form of Hodge's conjecture, after all, turns a corner to relate nonsingular complex projective algebraic varieties."

"However, this method is destined to be impossible to succeed. Do you know why?" A smile suddenly appeared on his serious face.

Qiao Yu began to analyze very cautiously in his heart.

"The paper says that let C be a hyperelliptic curve on a local field K with an odd residual characteristic, consisting of certain affine Weierstra equations," he speaks very slowly, but uncommonly, without stuttering, "and Conventional models for f(x) minimization have relatively binary layers if one assumes equation parsimony."

His voice paused.

Perelman didn't say a word. After a while, he suddenly asked the graduate student next to him, "Do you have any paper and pen?"

……

Perelman said: "Actually, the Hodge conjecture is not my current research field."

"However, when I was young, I was young and frivolous. After resigning from university, I stayed at home alone for seven years, and I did not face it face to face."

He handed the paper and pen to Qiao Yu: "Write down your process."

Qiao Yu said hello.

There is no table here, so Qiao Yu can only sit on a chair and write with his legs resting on it.And Perelman stood behind him.

Whenever Qiao Yu's pen stopped and reached a deadlock, Perelman would speak just right.

Although the content on the paper is just various equations, it is filled with more and more.

"Directly reading the H0 point, you can get the cluster diagram from the root of f(x)...and this diagram is contrary to the original conclusion."

After Qiao Yu finished his last sentence, his pen also stopped.

Perelman said: "Good. But I'm sure he's wrong because I used this method 20 years ago and I was just too lazy to publish a paper."

While speaking, he picked up the A4 paper in Qiao Yu's hand, went to the exhibition area of ​​the University of Berkeley next door, grabbed a bottle of glue, and then "clicked", pasted the paper next to the Harvard exhibition board, and walked away.

Qiao Yu and a group of Harvard students were left looking at each other.

Why did he tell Song Tianyu before he left...

It seems to be saying, "Don't worry, I'm not here to mess things up this time. Don't worry about my safety at all."

Qiao Yu suddenly felt that it was really prescient for Song Tianyu to assign him two bodyguards.

Learn to arrange the hotel for Perelman, the room is directly opposite the Hilton.

After all, Professor Hilton is also the vice chairman of AMS, and the winner of the Fields Medal, Abel Prize, and Wolf Prize, so that Mr. Perelman will not feel physically unwell due to too many mentally handicapped people around him.

When he returned to the hotel, Hilton just came out of the meeting room.

Hilton immediately gave him a warm hug: "My old friend, long time no see."

Perelman still has a bad face: "According to age, when I was born, you were already teaching at the University of Michigan. I don't remember our friendship."

Hilton: "It doesn't matter. Anyway, I'm just being polite to you."

Perelman: "..."

"I saw the young man you mentioned." He changed the subject.

Hilton asked with interest: "Oh, and then?"

"It's far worse than when I was young." Perelman replied, "Maybe at the level when I was 20 years old. But I can't ask too much from the young people now, after all, most people still stay at the age of 14." level at the time."

After finishing speaking, he opened the door, ready to enter the door to take a rest, to catch the jet lag.

Just then, Perelman heard a cough from behind.

Hilton said: "However, Qiao Yu is only 20 years old."

Perelman raised his eyebrows: "So what?"

"Also, his major is biology." Hilton smiled.

Perelman put his hand on the doorknob, was silent for a moment, and then closed the door suddenly and hard.