Zhu Mingli also said: "Submit the papers early and go back early."

Only Li Li said silently: "The question is too simple, I'm sorry to waste it..."

When Chen Zhou heard this, he looked at Li Li with a smile.

This is the truth...

Chen Zhou and his friends took the bus back to Yanda University. When they walked into the dormitory, it happened to be 9 pm.

Chen Zhou sent Yang Yiyi a message telling him that he had returned to the dormitory.

This is the minimum respect between couples.

Not long after, Yang Yiyi replied to the news.

【Yes, then you can read a book, just take a shower and go to bed.】

Chen Zhou replied with an "ok" expression.

Speaking of which, if you read the book, Chen Zhou doesn’t really want to read physics textbooks now.

However, he has finished all the textbooks for undergraduate courses in the Department of Mathematics.

The topic has not been determined yet, and he has no direction yet.

After thinking about it, Chen Zhou turned on the computer and searched for "Hilbert 23 Questions".

The words Hilbert have magical charm in the mathematics world.

He was one of the greatest mathematical circles in the 19th to 20th centuries.

This man is almost a perfect person in mathematics. His footprints are spread throughout all cutting-edge fields of modern mathematics, and his mathematical ideas have also penetrated deeply into the entire modern mathematics.

Hilbert’s 23 questions were proposed by Hilbert at the Paris Mathematician Conference in 1900, and the 23 most important mathematical problems were mentioned.

In a sense, Hilbert's 23 questions guided the direction of mathematical research after the 20th century, and its influence has been until today.

In 1976, among the top ten achievements in American mathematics selected by American mathematicians since 1940, Hilbert's first, fifth and tenth questions accounted for three items.

Including the seven major millennial problems proposed by the Clay Institute of Mathematics in the United States, it also echoes these 23 questions raised by Hilbert in 1900.

Its influence can be seen from this.

Chen Zhou looked at the information he found.

Although more than a century has passed, the subject of mathematics has also made great progress.

But among these 23 questions, a total of 17 were recognized and all solved.

There are still 6 problems left and have not been completely solved.

It can be seen from this that time is not a sufficient condition to solve the problem, it is just a necessary factor.

Just like Fermat's Grand Theorem, it took more than 300 years of precipitation and was finally solved by Wiles in 1995.

Chen Zhou looked at the discussions behind these issues with a little emotion.

The existence of these problems has actually surpassed the significance of the problems themselves.

In the process of researching these problems, the new mathematical tools and research methods that were born are even more important than some problems.

Questions like "proof of transcendence of certain numbers".

As early as 1929 and 1935, it was independently proved by several mathematicians.

However, the research on transcendental numbers theory is far from complete.

The study of this problem has also become part of transcendent number theory.

There is also the problem of "prime number separation".

Riemann conjecture, Goldbach conjecture and twin prime issues.

All are unsolved issues.

However, in the process of solving these conjectures, whether it is the obtained three prime numbers theorem or the important improvements to the screening method, they are extremely important and rare results.

Holding the mouse and sliding the roller, Chen Zhou sorted out the six unsolved problems in these 23 questions again.

It’s not that he planned to choose one of these six questions as a topic to study.

Instead, he hopes to get some direction from it.

Then, get closer to these real problems.

Moreover, the system tasks only guide one direction at a time, and everything depends on Chen Zhou himself.

Therefore, Chen Zhou planned to establish a systematic research idea for the project.

Start from the topic selection to every step afterwards.

He plans to gradually develop, or form his own research style.

This was also Chen Zhou's decision after careful consideration.

After all, judging from the last task, the experience rewarded by the system is ultimately the value of the topic.

Of course, you have to go deeper step by step.

After taking the notes, Chen Zhou searched for some related documents and similar content.

After finishing all of this, Chen Zhou stretched.

I glanced at the time and it was already past 10 o'clock.

Just now, why didn't Yang Yiyi come to urge her to hear the news?

I heard the phone vibrate.

Chen Zhou picked it up and took a look, and Yang Yiyi sent it.

【Happy, it’s time to sleep, be good, hehehe.】

Looking at the news, Chen Zhou smiled slightly, quickly clicked his finger and replied.

[Well, that happy Yiyi, let's go to bed...]

As soon as he sent it, Yang Yiyi came back.

【Yeah, good night.】

Chen Zhou: [Good night.]

The next day, March 22, Sunday.

Enter the venue at 9:30 am and take the exam at 9:30.

The third subject in the individual competition is geometry and topology.

After Yang Yiyi took this subject, her entire written test phase ended.

She did not report the last two subjects in the afternoon.

Chen Zhou's eyes lit up when it comes to the geometry and topology test papers.

The test paper is good, the paper is neat and the questions are very short.

It looks very comfortable...

The first question is about the product of the sphere.

Chen Zhou lifted his pen to calculate, with clear ideas and rigorous calculations.

It took less time to solve the first question.

Then there is the second question.

Proof of three-dimensional manifolds.

What manifolds describe in mathematics is geometry.

The second question was solved, and the third question was reached.

Questions about boundless smooth manifolds and vector fields.

It was not that difficult. After Chen Zhou finalized his ideas, he wrote the problem-solving process on the test paper.

Question 4 returns to the surface problem, and proves the standard sphere based on the average curvature.

Soon, it's done!

Question 5 is about Riemann manifold, that is, Riemann geometry problem.

Chen Zhou took a little more glance at this question.

Not because of the question.

Instead, like the Hilbert space in the analysis and partial differential equations yesterday, he is interested in Riemann geometry.

The same as Chen Zhou searched for literature and directions last night.

With the release of new tasks in the system, his goal of participating in Qiusai is more to find directions.

In the morning, after Chen Zhou and Yang Yiyi handed over the paper in advance, they went back to Yanda together, just like yesterday.
To be continued...