The top student must be diligent.

Chapter 50 Ye Cheng was hit

Of course, Xiao Yi had read this paper before, which is very famous both in the history of mathematics and in the history of China.

Although he did not spend as much effort on this paper as he did on Wiles's paper proving Fermat's Last Theorem and Zhang Yitang's paper breaking through the twin prime conjecture, he has already mastered about 80% of this paper.

After all, this paper was published several decades ago, more than 20 years earlier than the paper on Fermat's Last Theorem.

To some extent, although this paper is not something that undergraduates can easily understand, it is relatively easier to understand.

Therefore, those academicians showed some mercy in their choice of the first question.

Look at the intercepted clip again.

Xiao Yi simply took a glance and understood it.

"I mainly extracted Lemma 8 and Lemma 9 used by Mr. Chen to prove theorem 8 in his paper. Well, Lemma 3.9404 is [assuming x is a large even number, then Q≤2xCx/(logx)^9], and Lemma 9 is […], and Lemma uses Bombieri's theorem…"

After going through it once, he understood it completely.

Finally, let’s take a look at the questions that the academicians came up with based on this clip. Hmm…

The difficulty of the question is much lower. Basically, as long as you analyze the mathematical methods used in this passage, the problem can be easily solved.

In general, for students who have studied math competitions, the most important thing is to master the principle of inclusion and exclusion well enough.

The principle of inclusion and exclusion was one of the test questions in the competition, and this was also Eratosthenes' original sieve method, which was a major basis for Chen Jingrun to complete his proof.

Combined with some hints given by academicians in the question, there is every chance of solving this problem.

There was no problem with the first question. Since the exam had not yet started, Xiao Yi turned to the second test paper and looked at the second clip.

However, when he saw the second clip, his expression became strange.

Goodness, isn’t this a coincidence?
The second clip turned out to be Zhang Yitang’s paper on the twin prime conjecture!

how to say?

In this exam room, no one understands this paper better than me!

Ok……

I'm afraid that the academicians who set the questions may not understand it better than him.

He has read this paper too many times, and he can guess which page of the original paper the excerpts taken by these academicians are from.

Then he took a look at the clip, and sure enough, he knew immediately that the clip was on page 26.

The dispersion method, the dispersion method used by Zhang Yitang.

In addition, a section was added, which is also a key part of this paper, about the Bombieri-Vinogradov theorem.

simple.

Xiao Yi shook his head.

However, this is the case for him, but for other candidates who have not studied this paper, this clip will probably become their nightmare tonight.

It seems that although the academicians were relatively merciful in their choice of the first clip, they were full of malice in the second clip.

He could almost call it: bullying from math seniors on math beginners.

Although the candidates present could not be called beginners in mathematics, they were not much different from beginners in front of the academicians.

In short, if you want to write this second paragraph, unless you are extremely talented or have studied this paper before, there is a 2% chance that you will not be able to understand it at all.

"Dingling bell~"

The bell rang, indicating the official start of the exam.

Xiao Yi didn't think about it anymore, turned back to the first test paper, and started answering directly without even thinking about anything. After all, he had already thought about everything he should think about when he first saw the paper.

Next to him, Ye Cheng, who had been looking at the questions for a few minutes but was still confused by the passage on the paper, couldn't help but turn his head to look after hearing the sound of writing next to him.

Then, he froze.

What the hell?

What did he see?
Xiao Yi...are you starting to answer now?

In fact, the only sound in the whole place was Xiao Yi's writing.

“Squeak, squeak…”

Although the sound was very small, it was particularly obvious in this quiet examination room.

If Xiao Yi finished the morning exam in only 20 minutes, it was still acceptable in their eyes, because they heard that Wei Shen from Peking University, who won the IMO gold medal on behalf of China that year, was also able to finish all the questions in just a few dozen minutes.

But now, if Xiao Yi can even solve such an extraordinary problem, isn't it a bit...

Not reasonable?

As a 14-year-old genius boy, he felt that his worldview was distorted at this moment!

Turning back, he looked at the passage from Chen Jingrun's paper again, then held his head with both hands, as if he was going crazy.

However, not long after, he heard the sound of flipping test papers next to him.

isn't it...

He turned his head carefully little by little, looked at Xiao Yi, and then his eyes widened.

Xiao Yi has actually finished the questions in the first section?

This……

By the way, the second clip looks much more difficult than the first one. In this case, Xiao Yi should not be able to...

The next moment, Ye Cheng's eyes widened even wider, because after Xiao Yi turned to the second test paper, he actually started writing again!
Ye Cheng rubbed his eyes, suspecting that he had seen it wrong.

But when he opened his eyes again, Xiao Yi had already written several lines.

Come on, can you do this without even thinking? !
He was stunned for a moment, and suddenly realized that he had been staring at Xiao Yi for too long. Would he be discovered by the invigilator?
He immediately came to his senses, glanced at the front of the examination room, and then was stunned.

Hey? Where is the invigilator?

They have three invigilators, how come they are nowhere to be seen?

He turned his eyes and when he caught a glimpse of Xiao Yi's back, he was stunned again. These three invigilators had gone around to the back without him noticing and were now watching Xiao Yi doing the questions, their faces full of surprise.

Okay, okay, the invigilator wants to join in the fun, right?

Ye Cheng covered his face.

He truly deserves to be called the “national number one” as he easily accomplished something that so many of them could not do.

After calming himself down, he finally put his hand down.

No matter what, he has to try his best!
Lowering his head and looking at his test paper again, Ye Cheng was no longer distracted and began to think seriously.

Although he was hit hard by Xiao Yi, he was not so mentally unbalanced. On the contrary, Xiao Yi's image in his heart became taller and taller. Maybe one day, Xiao Yi's image would catch up with his admiration for Terence Tao.

……

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(End of this chapter)