A genius? I just love studying.

Chapter 74 Eastern Schultz

"Lie algebra!"

It was not until Chen Hui rewrote the answer to the first question that An Chengzhang realized the secret.

Yes!

The recursive and associative forms of the formulas for the action of the linear transformation f on the basis vectors are very similar to Lie algebra.

An Chengzhang was secretly annoyed. After he knew the answer, he looked at it again and felt that this problem should be solved using Lie algebra. He didn't think of such an obvious thing at the beginning.

However, after seeing Chen Hui's solution, he suddenly calmed down.

Even though he knew that this problem needed to be solved using Lie algebra, the key to solving it was to construct auxiliary structures and homomorphisms. He might not be able to come up with this ingenious mapping even if he was given a day.

Chen Hui didn't even stop for a second. The entire solution process was completed in one go.

The only pause was the few minutes I stopped writing.

How can you think of so many things in just a few minutes?
What's going on in this little guy's head?
The light in An Chengzhang's eyes dimmed a little.

He originally thought that he had some talent in mathematics, but now compared with a true genius, there is a world of difference.

Zhao Defeng was also a little surprised. Before, Chen Hui took half an hour to complete a small question, but now he only took twenty minutes to finish it all?
But he didn't think much about it, stepped forward, and prepared to ask Chen Hui to go back to school to do the homework.

After all, they are principals with a lot of things to do every day. They can't just stay here with Chen Hui all the time, right?
An Chengzhang reached out to stop him and shook his head slightly at him.

He could see that Chen Hui was in a very hot mood at the moment, so it would be better not to disturb him.

Mathematics also requires inspiration.

What's more, this fifth question is obviously not a good one.

For any centrally symmetric convex polyhedron V in R^3, prove that a known ellipsoid E can be found to enclose the convex polyhedron, and that the surface area of ​​E is no more than three times the surface area of ​​V.

As we all know, long math problems are not necessarily simple, but short problems are definitely not simple.

This question involves geometric topology, and also requires the minimum enveloping sphere of graphics and some optimization knowledge.

An Chengzhang himself has done some research in this area, but he only has a general idea. It will probably take at least ten days or half a month to complete it.

Sure enough, Chen Hui was stuck on this question. He stopped writing and stared at the screen for more than ten minutes.

Zhao Defeng probably guessed what An Chengzhang meant, so he didn't force it and continued to retreat behind Chen Hui. At worst, he could wait a little longer. It would still be in time to call Chen Hui back to school during lunch.

After more than ten minutes, Chen Hui still had no idea.

No more hesitation, just raise your hand and click the mouse to jump directly to the next question.

He is not a pedantic person. He has been looking at it for nearly half an hour without any idea, which means that he has not learned the knowledge points used in this question.

"Hey, Xiaotang, who is that guy?"

Xia Mi had long since stopped paying attention to the game. "The principal and vice principal have been standing behind him for over an hour. What kind of treatment is this?"

The security guards looked at each other in confusion. They were all quite old, and after standing for over an hour, their backs and waists were already aching.

What's more, their clothes are too eye-catching, and many people have been pointing and talking about them.

In the words of those guys, they are here now, just like guarding the little guy.

But the two principals were still standing, so they didn't say much.

……

Tiewu Middle School, 5th floor of the Administration Building,

More than two hours had passed since the exam started. Deng Leyan finished three questions with great success and looked at the fourth question.

The two competition coaches in the room nodded repeatedly, as Deng Leyan's strength was still beyond their expectations.

Being able to achieve this in the first year of high school, he is a true genius!
The little guy from Rongcheng No. 2 Middle School next door might still be immersed in the glory of winning the first place in the provincial competition, but he didn't know that Deng Leyan had already been climbing to another peak.

The gap between the two is bound to get bigger and bigger!
The fourth question was obviously difficult. Deng Leyan, who had been answering the questions quietly before, frowned slightly and began to flip through the reference book at hand.

Then he flipped through the book for a while, calculating on the draft paper for a while. Time passed slowly without him noticing, and he had flipped through more than a dozen pages of draft paper. His handwriting became increasingly sloppy. But Deng Leyan's brow had relaxed, and the calculations on the draft paper began to take shape.

Obviously, he has found an idea.

Li Bin and the other man looked at each other in amazement.

To be able to become competition coaching teachers at a prestigious school like Tiewu Middle School, they themselves are also gifted children.

Li Bin also ranked among the top 60 in the national gold medal competition that year, but in the final training session, he ranked eighth in the second round of 15 to 6, and was unable to represent China in the IMO.

But they felt a huge gap from Deng Leyan!
The stars move, the sun sets in the west, and patches of red clouds shine through the floor-to-ceiling windows.

At this time, Deng Leyan had already written the answer to the first question.

The sun seems to set very slowly, but once the red glow appears, the world is shrouded in darkness in the blink of an eye.

The bright lights dispelled the darkness, and the room was still as bright as day.

The room was obviously quiet enough, but after night fell, I could feel that the surroundings seemed even quieter, and even my brain became active.

The expression on Deng Leyan's face became more serious, his writing speed increased again, and his thoughts became smoother and smoother.

Finally, after an unknown amount of time, Deng Leyan typed the last symbol and took his hands off the keyboard.

Question 4 is done!

A huge sense of accomplishment came over me.

Learning mathematics is undoubtedly boring, but every time you solve a difficult problem, the huge sense of accomplishment is really fascinating.

This is also one of the reasons why Deng Leyan is so obsessed with mathematics.

Whenever he encountered a difficult problem, as long as he recalled the sense of accomplishment he felt when he solved the problem, he would persevere.

"Okay, that's all for today. Eat something, get some rest, then take a hot bath and have a good sleep. We'll continue tomorrow!"

Li Bin came to the desk and held down Deng Leyan's hand as he clicked on the next question.

Deng Leyan then noticed that it was already past one in the morning.

Indeed, there is no time in cultivation.

Deng Leyan followed suit, locked the computer screen, and stood up to stretch his muscles.

At this time, someone came in with hot food.

Li Bin and the other man also left the office, as they also needed to go back to sleep.

Both of them were in a very relaxed mood.

Deng Leyan has already solved four questions and scored over 60 points, so entering the finals is a foregone conclusion.

There is still one day left tomorrow, and it is likely that we can get another twenty points.

They don’t have to worry about whether Deng Leyan can enter the finals now. They are just a little curious about how Deng Leyan can rank in the preliminaries?
The Barbaria Mathematics Competition preliminaries will publish rankings and also display the units or schools to which the contestants belong.

When the rankings are released, I wonder what everyone’s expressions will be when they find out there’s a middle school student in the position ahead of them.

When they thought of this, they couldn't help but smile, feeling proud.

"I've lived for over forty years and have never seen such a terrifying genius!"

Li Bin sighed sincerely.

“I wonder how far he will go in the end?”

“Perhaps, he can become the Schultz of the East?”

They fantasized that even the air seemed sweet.

(End of this chapter)