Chapter 896

As one of the best mathematics majors in China, there are countless so-called mathematical talents in the Department of mathematics of Beijing University. If the Department is only ranked second, then no university's mathematics department dares to say that it is the first, that is to say, it exists so well.

It enrolls 200 undergraduate students every day, half of them are recommended by competitions. Almost all the gold medal winners of the international and domestic Mathematical Olympiad are here. It is also known as the head of the four madmen department.

In addition to the original talents in the mathematics department, there are many other professional students come to study, such as computer science, economics, physics, and so on. Those who are outstanding in their respective departments often come to the mathematics department for related studies.

The students studying here are divided into two classes according to the competition and the college entrance examination students. It can be said that... The competition is very strong and the pressure here is great. However, as long as they can carry it here, they are not ordinary people.

It is also for this reason that there are so many talents and masters that almost all of them devote themselves to studying hard. Most of them will choose to go abroad to continue their studies after graduation, and then only 20% of them will come back.

Every year, 500 people go out and only less than 100 come back. After getting their doctorates abroad, many of them choose to stay and work. Some of them who are particularly outstanding have become university professors or associate professors, while those in the secondary level hold important positions in major companies.

For example, mathematical principles play an important role in price model, statistical analysis, financial products, optimal portfolio and other fields, while Chinese people are good at mathematics, which is a normal phenomenon in the eyes of foreigners, and it is not Chinese who are good at mathematics.

However...

at this moment,

at this moment, the Department of mathematics of Beijing University has encountered a big problem, and almost all the people in the Department are trapped in it, and this problem only happened five minutes ago... Professor Zhang YAYING is a professor in the Department of mathematics of Peking University and an academician of the Academy of Sciences.

He is the injection of international mathematics research institutions, director of mathematics development laboratory, director of Mathematics Association, chief editor of seven domestic and foreign top journals, and has contact contribution on Riemannian manifold and Z function. In general, he is the limit of Chinese mathematics.

There should have been nothing wrong, but... Zhang YAYING received a phone call from Xiao Sun, the head coach of the national team in charge of training the mathematics competition. Associate Professor Sun explained the current problems to Zhang YAYING.

"Academician Zhang..."

"we can't even understand this problem... It seems to be a physical phenomenon, but it needs to be expressed in non Euclidean geometry." Associate Professor Sun said with a wry smile: "by the way, academician Xu mang is in our training base. He asked us to solve this problem in four hours and look for anyone's help at will."

"Xu mang?"

"Yes... He's an advisor to the national team for the math contest." Zhang YAYING reluctantly said: "what is the problem? You send me a picture, and I'll show you... Is it really so difficult? Can't even read it? It's a little exaggerated. "

"No, no, no!"

"Academician Zhang... Academician Xu mang is not an ordinary person!" Associate Professor Sun said seriously: "you think he won the Nobel Prize in physics at such a young age. I think this year's Nobel Prize in physics should also be him. After John Badin and Fred Sanger, he is the third person who has won this prize in the same field successively."

"We can see how powerful he is, and his research results are all based on theory, relying on mathematical calculation..." Associate Professor Sun explained: "it can be seen that academician Xu Mang's mathematics is so powerful, but... I asked him why he didn't study mathematics."

"..."

"as we all know, he didn't like mathematics. He was forced to learn mathematics only because theoretical physics needed mathematics." Zhang YAYING said with a smile: "at the beginning, I was very angry when I heard this kind of words... Now I think it's quite Xu mang."

"In fact..."

"there are deeper reasons." "According to academician Xu Mang's explanation, it was all because his wife had a kitchen knife on his neck... He had to take part in the so-called competition with him, but he was forced to learn mathematics."

"..."

"forget it." Zhang YAYING said in a hurry: "send your question, I'll study it."

After hanging up the phone,

in less than 30 seconds,

Zhang YAYING received an e-mail with a picture attached. She just glanced at it, but didn't find it difficult. As a result, when she formally entered the solution process, she found out how hasty it was.

This problem is not simple!

It doesn't seem to be comprehensible, it needs to consider a lot of problems... In a word, it translates physical phenomena into precise mathematical equations.

"This..."

"is this too much for college students?" Zhang YAYING frowned, full of doubts about this problem, it is far more difficult than those competitors can solve the scope, it is more inclined to practical application.However...

since Xu mang said that he could find anyone to solve the problem, was he challenging the Mathematics Department of Beijing University?

For a while,

Zhang YAYING had a strong will to fight. He had not competed with others for a long time. However, when he was studying, he liked to find someone to discuss with him. Now that he was in this position, he didn't even have the opportunity to exchange views, but Xu mang gave him such a chance.

Soon,

the flame of fighting spirit was a little dim,

it was too difficult...

"hello

"Lao Yi!"

"I have a problem that physics is now described as a mathematical equation. Let's solve it together!" "You can help me to see what kind of physical phenomenon this is. It seems to be a curve description problem of extreme space-time," Zhang YAYING said

"Eh?"

"Have you studied physics?" The other side said with a smile, "show me!"

For a moment,

the old Yi called Zhang YAYING back, in a very serious tone.

"Lao Zhang!"

"Who are you helping to solve this problem?" Lao Yi asked: "this question is not ordinary... From the perspective of understanding, it involves the concept of four-dimensional space-time... And there are models and patterns... This is... The other party is not ordinary people?"

"..."

"it's Xu mang."

"He was in the training base of mathematics competition, and then he gave the players such a problem, solved it in four hours, and at the same time asked anyone to help him." Zhang YAYING said helplessly: "I think this is a challenge to us."

"He?"

"Did he let your players solve this problem?" Lao Yi said in a confused way: "this is obviously aimed at your mathematics department!"

"In this case...

" then I can't help any more! " Lao Yi showed a smile: "but I can't solve it. You can find a way. It's completely separated from physics. It's a pure mathematical problem. It's so pure that you don't need physics knowledge."

Hang up the phone,

Zhang YAYING fell into silence. If you give him a few days, you may be able to solve it, but it's only four hours. It's too harsh to speak. It's very unfair... Unless the equation of the problem is extremely simple.

Is it possible?

Xu Mang's question can't be addition, subtraction, multiplication and division.

Soon,

Zhang YAYING found several other professors in the Department of mathematics to study the problem together. However, after half an hour, he came to the conclusion that it could not be completed in a short time. It took at least two weeks or even needed to use computers.

"Academician Xu mang can give us a difficult problem in mathematics department!" One of the professors sighed, "did he want to do that for a long time?"

"He..."

"it's hard to say... Although there is no intersection, academician Xu mang is very strange from other people." Another professor said: "he seems easygoing, but in fact he is very stubborn and has a bad temper. I heard that he has rejected many preferential policies for him."

"He has the capital to refuse." Zhang YAYING opened his mouth and said: "he won the Nobel Prize in natural science so young, and it is the first natural science prize in our country. With his age... I can't see his height now, because it's just the beginning."

"All right

"Let's go on!" Zhang YAYING said solemnly: "our department of mathematics of Beijing University is the first in the country. We can't be defeated by a physics student."

At this time,

I don't know who leaked the problem. The students of the whole department of mathematics fell into a crazy stage for this problem. After all, it was put forward by Xu mang. If anyone can solve it, he will surely stand out in the mathematics department which is full of experts.

Many people regard this opportunity as a stepping stone to their success. Unfortunately, they overestimate their own strength and underestimate Xu Mang's pariah attribute. Faced with this temporary unsolved problem, many people collapsed.

Once the four great talents, already far away in the United States, and the current four talents, in addition to two into the national team of mathematics competition, the other two are sitting in the library together to solve the mathematical problems provided by Xu mang.

The cooperation of these two people has aroused the attention of many students. Although the so-called four great talents are all nicknamed by everyone, they do not have the corresponding strength, and they even mix up a lot of nicknames. These four people almost represent the highest knowledge of the Mathematics Department of Beijing University.

However...

the two of them are already in despair in the training base, and the other two are not much better. They have thought hard and have no solution. Although they understand the physical phenomenon, they will not describe it.

On this day,

the Mathematics Department of Beijing University experienced the darkest four hours, and no one knew what to do next.

At Fuda,

Xu Mang's alma mater,

the Mathematics Department of Fuda, as the second-largest existence in the country, performed mediocre. When they knew that Xu mang had provided such a problem, almost no one would be reluctant to solve it. Xu Mang's legend is still circulating in the school.Director Ouyang Fei looks at a topic on his computer screen, his face is full of helpless smile, Xu mang... Too messy, what is he thinking?

On this day,

these four hours,

everyone is thinking about a problem.

How to solve it?

......

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