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So far, two Chinese mathematicians have won the Fields Medal, a heavyweight award that can be called the Nobel Prize in mathematics.

But these two mathematicians did not win the award as Chinese nationalities.

This shows to a certain extent that the Huaxia people have such abilities, but the domestic scientific research resources and scientific research level are still a little worse in comparison.

With the improvement of domestic scientific research resources and scientific research level.

In the future, it is not impossible for Huaxia people to win the Fields Medal.

"Now I have some directions. I am currently studying the Riemann conjecture, and I already have some ideas."

Hearing Lou Song's words, Xu You suddenly stopped eating.

"Riemann... Guess?"

Xu You naturally knew about Riemann's conjecture.

Although Riemann's conjecture may not be as famous as Fermat's conjecture and Goldbach's conjecture.

But its importance is greater than these two.

It can be said that it is the most important mathematical problem in today's mathematics world.

In today's mathematical literature, there are more than a thousand mathematical propositions, all of which are based on the establishment of the Riemann Hypothesis.

Whether the Riemann conjecture is correct or not also determines whether these more than a thousand mathematical propositions are true.

However, since the Riemann conjecture was proposed in 1859, no mathematician has really proved the Riemann conjecture.

The difficulty of its proof can be seen.

After discussing math problems, both Xu You and Lou Song became excited.

The two of them were not as calm and introverted as usual.

Gradually, Lu Zhiyao couldn't get in the conversation, so she could only eat quietly and watch them chat about mathematics.

"Is math really that interesting?"

Seeing the excitement of the two, Lu Zhiyao secretly complained.

It is obviously a headache subject, why are Xu You and Lou Song so interested in this subject.

Not normal, really not normal.

After Xu You chatted with Lou Songchang, he suddenly realized that Lu Zhiyao hadn't spoken for a long time.

As a man with high EQ, Xu You should change the topic in time.

"Okay, Lou Song, let's talk about this in detail later. How does it feel to stay in America for a year, and how is it different from China?"

Seeing that the topic of mathematics has finally come to an end, Lu Zhiyao can finally join in.

"Yes, isn't it safe over there? Have you ever encountered any danger?"

"It's not that good, and it's not that bad. As long as you don't go to dangerous places, it's relatively safe. But I basically don't go out at night, and it's really not as good as ours. There's no way, some weapons are really too common there. I have never encountered real danger, but I have heard gunshots a few times."

"Hey, if you don't control something like a weapon at the beginning, it will be very difficult to control it later. For ordinary people, it's better not to have this kind of power."

"In addition to this reason, there are also national conditions, cultural reasons, and some interest factors."

After eating, Lou Song proposed the next arrangement.

"Do you want to do math problems together later? I heard that the college entrance examination questions are quite interesting, so we just spent two hours completing the four sets of questions."

Hearing Lou Song's proposal, Xu You immediately agreed.

"Okay, okay, I haven't done a math problem for a long time, this time I must do it faster than you, and the score can't be lower than yours."

"Lu Zhiyao, let's join together. You must be fine with the college entrance examination questions."

Xu You and Lou Song looked at Lu Zhiyao together, but Lu Zhiyao quickly waved his hands.

"I'm not going to join in the fun, I'm still more suitable for playing with cats. You two will do it, and the cats are still waiting to eat my cat food."

For Lu Zhiyao, the math problems in the college entrance examination were not a big problem.

It's just that they are competing against players like Lou Song and Xu You.

It will inevitably hurt your self-esteem.

Lu Zhiyao noticed the time Lou Song mentioned just now.

Even for the college entrance examination questions, doing four sets in two hours is too exaggerated.

And it is said that this year's college entrance examination questions are very difficult.

After leaving the restaurant, Lu Zhiyao went to feed the cat alone, while Xu You and Lou Song went in another direction.

Although Lu Zhiyao's figure was a bit lonely, she still understood Xu You.

After all, when you meet a friend you haven't seen in a year, it's normal for the two of them to spend a good time together.

What's more, it is a very positive thing like studying math problems.

How can Lu Zhiyao, an ordinary woman, compare with mathematics?

"Where are we going to do the questions later?"

"I rented a house outside, no one bothers me, so I'll just go there."

"That's really great. I can do the questions happily tonight."

"You can also study the Riemann conjecture together. You can just bring the toiletries and stay with me tonight."

"Haha, I never thought I could be roommates again."

Lou Song went back to his dormitory, took some toiletries, and then the two printed out this year's mathematics college entrance examination questions and walked to Xu You's community.

At the gate of the community, the security guard stopped Lou Song.

"Is it from this neighborhood?"

"Oh, I'm with him."

"If you don't belong to this community, just register."

Lou Song was stunned for a moment, but he registered his personal information before being released by the security guard.

After entering the community, Lou Song said:

"Is the management of your community so strict?"

"Well, it wasn't so strict before, but it suddenly became stricter this time."

"Actually, after I returned to Ji University, I felt that Ji University's management was stricter than before. The mobile police cars on campus appeared more frequently than before."

Xu You recalled it, and it seemed that this was indeed the case.

After the two entered the house rented by Xu You, they tidied up a bit and were ready to fight.

"For two hours, we are now ready to count down. After the answer is finished, we will mark it with pen."

"no problem."

After the countdown started, both of them immediately started answering the questions.

This time, the two chose four sets of papers, the national A and B papers, and the new college entrance examination papers one and two.

After living abroad for a year, Lou Song's math ability has evolved again, which is even more terrifying than a year ago.

Xu You raised his learning level to level four, and his mental and physical strength have also been greatly improved.

For a while, the two were neck and neck again, with almost no gap.

An hour and a half later.

Lou Song put down his pen, indicating that he had completed all the answers.

At almost the same time, Xu You also wrote a pen.

"Is it a tie again?"

This time, the two had the same result in terms of time.

"I finished four sets of questions in one and a half hours, this speed... tsk tsk!" Xu You sighed.