The door of the store is not big. Next to it is a colorful sign that says - rice fried with the GGS.

Fried rice with egg.

Lou Mingshen took back his sight, "no, let's go."

"Yes."

Bentley immediately turned around and left.

……

After dinner, Jiang Fuyue and his party rushed back to the hotel before dark.

Less than five minutes after entering the room, yuan Bentao came in a hurry.

"... interview?" Jiang Fuyue raised her eyebrows. "Now?"

Yuan Bentao said, "yes. The representative of the main test committee is already downstairs."

"Did you say it was because of something?"

"The other party refused to disclose the specific situation, but said it was related to the solution of question 6."

Jiang Fuyue thought for a while and seemed to realize something: "let's go."

Five minutes later, Jiang Fuyue and Yuan Bentao got into the car sent by the main test committee.

Chen Cheng: "there seems to be sister Yue and Professor Yuan?"

Tan Jiaxu took a look: "it's really..."

They ran over.

"What happened?"

Yuan Bentao roughly explained the situation again.

Chen Cheng: "what's wrong with the solution? Is there any problem?"

Yuan Bentao: "I don't know yet. I don't know until I go."

As soon as the voice fell, the car drove away.

Chen Cheng looked at the car's butt and couldn't hide his anxiety: "is there any conspiracy?"

Tan Jiaxu frowned: "the society ruled by law should not be so rampant?"

Having said that, I have no confidence at all.

The two looked at each other.

Chen Cheng gritted his teeth: "I'll find the phone number of the Embassy on the Internet. You can contact Mr. Xu and explain the situation to him. If sister Yue and Professor Yuan haven't come back after zero, we'll ask for help!"

Contact the embassy abroad.

Let Xu Jing call the police in China.

work along both lines.

Tan Jiaxu nodded: "OK, I'll call Mr. Xu now. If he knows that sister Yue has been taken away, he must jump up in a hurry..."

Thirty minutes later, the car stopped in front of another hotel.

Jiang Fuyue and Yuan Bentao were taken outside a banquet hall.

The moment the door opened, the bright light suddenly leaked out, and all the members of the main test committee were there, including Li Zhao.

There is no doubt that this is the IMO marking site!

Jiang Fuyue was invited in, and all eyes on the scene fell on her alone.

Professor Gail, chairman of the main test committee, sat in the middle and asked, "is it Jiang Fuyue?"

Jiang Fuyue nodded and said straight to the point, "what's up?"

Professor Gail turned to his assistant and said something in Roman.

Jiang Fuyue heard it and asked her assistant to find a Chinese translator.

She immediately said, "no translation, English or Romanian."

Professor Gail was a little surprised. He didn't seem to expect that she would speak Roman. He raised his hand and waved back his assistant. Then he said to Jiang Fuyue in English: "I'm sorry to call you late at night. We have several questions about the solution of your sixth question. I hope you can answer it face to face."

"Yes."

Other professors at the scene stopped their work and pricked their ears.

Gail: can you tell me what you think first

Jiang Fuyue: "this question is a preliminary exploration of complex calculus geometry from the perspective of Algebra... The equation mentioned here is actually a deformation of Hermite Yang Zhenning mills equation..."

Gail was in a trance.

Other professors are also a little confused.

Can this problem be related to Hermite Yang Zhenning mills equation?

They turned out the original question of the test paper and read question 6 from beginning to end.

Do not see do not know, a look startled!

Several professors even wrote directly and began to calculate on the spot.

Finally, it is proved that it is indeed a simple deformation of Hermite Yang Zhenning mills equation!

Even the leader of country y, the provider of this problem, has a look of hindsight.

That means he didn't know before!

This is... Very embarrassing.

A group of professors are not as bright as a student?

If Jiang Fuyue didn't see the performance of the people, she continued: "since it is the deformation of hermit Yang Zhenning mills equation, I think we can think about the solution of this problem from the perspective of the standard model of quantum mechanics?"

This question mark also hit all the people present.

The reference answer is the conventional solution, which is also the problem-solving idea commonly used in this exam.

That is, using complex algebraic calculation, several transformations are brought into the geometric model, and the final solution is obtained.

Not only the amount of computation is huge, and one wrong step in the middle may directly affect the final result, but also the modeling idea needs to be used. For high school students, the difficulty can be said to have exceeded the top level.

Looking at Jiang Fuyue's answer sheet, it is refreshing and clean. The problem-solving ideas are mostly logical derivation, and the amount of calculation is very small.

But the final result was the same as the reference answer, which attracted the attention of the marking teacher.

The answer sheet was taken out on the spot and the people gathered together for analysis.

But they still don't have a clear idea, and even they don't understand some steps, but they can't hastily say that other students are wrong!

After all, the correct answer is not so accurate.

That's why I invited Jiang Fuyue to come for an interview.

Gail: can you explain the middle steps

Jiang Fuyue: "I need a whiteboard and a marker."

Gail nodded to his assistant, who was soon ready.

Jiang Fuyue lifted her pen cap: "as we all know, there are two equations in the field of complex differential geometry, one is the Hermite Yang Zhenning mills equation, which has become the standard model of quantum mechanics, and the other is the Keller Einstein equation closely related to relativity. Both equations come from physics."

"Solving these two equations on the premise of stability has always been the core task of complex differential geometry."

In 1977, Qiu Chengtong solved the Keller Einstein equation with zero curvature.

In 1985, Donaldson, ullenbeck and Qiu Chengtong solved the Hermite Yang Zhenning mills equation on the premise of stability.

In 2012, Chen Xiuxiong, Donaldson and sun song worked together to solve the Keller Einstein equation with positive curvature on the premise of stability.

In the middle of the solution steps just written, Jiang Fuyue framed a big circle with a red marker, then pointed to the circle and said word by word: "These steps are to solve the j equation independently proposed by Chen Xiuxiong and Donaldson and the deformation of supercritical Hermite Yang Zhenning mills equation proposed by Qiu Chengtong and others on the premise of stability, and build a bridge between Hermite Yang Zhenning mills equation and Keller Einstein equation."

"In this way, the equation we derived can be directly applied to this problem. If we bring these six numbers in, we can directly get the result."

The difficulty is to deduce. Pupils can do it in this step.

Professor Gail was shocked