Chapter 154: Are You Pointing at Me?

Yes, Xu Qingzhou prepared to strengthen his study in the field of number theory.

Number theory is a theory that studies the properties of integers. The basic element of integers is prime numbers, so it can be said that the essence of number theory is the study of the properties of prime numbers, and to study prime numbers, one cannot do without various conjectures in prime numbers.

The Cramér conjecture is one, no, it should be called the Cramér law now.

Besides that, there are the Goldbach conjecture and Fermat's Last Theorem among the world's three major mathematical conjectures, and there is also the Riemann hypothesis among the 7 millennium problems.

These are top-level mathematical conjectures, each of which is hell-level difficulty.

Xu Qingzhou hadn't been so iron-headed yet. In his view, solving mathematical conjectures is like fighting monsters and leveling up. Rushing at the ultimate boss as soon as you come up will only result in dying without even scum left.

Solving these top conjectures is the business of those folk mathematical enthusiasts.

This is not a joke. For those third or fourth-tier mathematical problems, folk scientists are really not interested. They study Goldbach conjecture, four-color conjecture, etc., and some even want to disprove Fermat's Last Theorem, which has already been proven.

For the third echelon, the Twin Prime Conjecture can be tried.

Read! {

At first glance, it is very difficult.

"Let's slow down for a few more days. It will still feel strange to see her," Guo Ziyang sighed.

"Mm, I plan to study things in number theory," Xu Qingzhou nodded.

This paper proved the weakened form of the Twin Prime Conjecture, that is, discovering that there are infinitely many prime pairs with a difference of less than 70 million. It was the first time someone proved that there are infinitely many groups of prime pairs with a distance less than a fixed value.

In the noodle shop, the two ordered a bowl of noodles each and then sat down to chat.

"I also happened to come here to buy something. I didn't expect you guys to really be here."

Guo Ziyang: "Damn, Qingzhou, don't curse me!"

"Get out, get out, I don't do gay stuff," Xu Qingzhou retreated quickly, very disgusted.

Xu Qingzhou turned his head and saw a very beautiful girl standing behind them.

Guo Ziyang complained in his heart. After a period of time, Qingzhou's pretentiousness was even heavier.

Xu Qingzhou walked in first, "If you don't eat, forget it." "Eat!"

"Embarrassing my ass," Xu Qingzhou rolled his eyes and complained, "Isn't it just a failed confession? If you get a divorce in the future, will you not be able to live?"

70 million and 2 seem far apart, but for analytic number theory, it is the difference between 0 and 1. From nothing to something, or rather, letting mathematicians change from fishing for needles in the ocean to fishing for needles in a pond, or even fishing for needles in a swimming pool, or fishing for needles in a bowl.

Looking at Tian Shuang, Guo Ziyang was surprised, "You really came?"

"Noodles?" Guo Ziyang's mouth twitched.

Xu Qingzhou looked at Guo Ziyang opposite and asked about the main business, "Do you really not like Ding Jiahui anymore?"

Song Yao: "Alright, you tell him to be brave, like a man."

It was also at this time that a voice sounded.

!.

Song Yao: "Heard that a snack street opened on College Street, let's go together tonight?"

Hu~ Must be thinking too much.

"Awesome," Guo Ziyang gave a thumbs up. He used to be envious and jealous, but now he has completely let go.

Guo Ziyang asked curiously, "What big meal are we eating?"

"Really?" Guo Ziyang was skeptical. When they came back together last time, Ding Jiahui basically didn't speak to him, obviously wanting to keep a distance.

As he spoke, Tian Shuang had already sat down on the stool next to Xu Qingzhou, raised her hand to brush her hair, and said, "Student Xu Qingzhou, you returned to Chengdu without telling your old classmate." Xu Qingzhou looked at Guo Ziyang inquiringly.

Taking a deep breath, Xu Qingzhou took out his notebook and began to organize the data he had seen recently.

After finishing silently, he put away his phone and went out.

Guo Ziyang asked curiously, "You stayed at home all day yesterday?"

These things, even if Xu Qingzhou has a cheat, he dare not think about it for now.

Tian Shuang was dressed very exquisitely, and there was a bit of playfulness in her gestures and speech, which made it easy for people to get close.

However, he thought about it. Staying at home all the time would be scolded by Wang Nushi again. It just happened to go and ask what Guo Ziyang really thought, so he asked Guo Ziyang if he wanted to come out for dinner, and he would treat.

Xu Qingzhou said, "Things that everyone knows don't need to be said."

Guo Ziyang explained, "Just now she asked what we were doing, and I said we were going to Nanlin Road to eat noodles."

At 5:30 in the afternoon, Xu Qingzhou met Guo Ziyang at the intersection. Compared with the last meeting, this guy seemed to have matured a lot. At least he didn't look so childish, which made Xu Qingzhou click his tongue. Love can really make people grow.

Xu Qingzhou pouted, thinking to himself that if you continue like this, it's really not cursing you, just giving you a preview in advance.

As he spoke, he even hugged him.

Guo Ziyang scratched his head and said embarrassedly, "I like her, it's just... I feel a bit embarrassed."

"Mm, Song Yao said it herself."

"Xu Qingzhou, Guo Ziyang."

"I just returned too," Xu Qingzhou smiled lightly, hehe, just happened, where did so many coincidences come from.

After saying this, Xu Qingzhou stopped. His own cement seal had loosened, and he was still here acting as a dog-headed military advisor.

The Twin Prime Conjecture refers to prime pairs that differ by 2, such as 3 and 5, 5 and 7, 11 and 13... It can be described as follows: there exist infinitely many primes p such that p+2 is prime.

Xu Qingzhou greeted Wang Nushi and was just about to go out when he received a message from Song Yao.

Just when he was emotional, Guo Ziyang's expression changed, and he grabbed his hand, "Qingzhou, quick, let me touch the aura of the academic god."

Opening the computer, inside was the paper he read before going to bed last night, Zhang Yitang's *Bounded Gaps Between Primes*, which was a paper on twin primes published in the *Annals of Mathematics* in 2013.

Hearing Xu Qingzhou say he would treat, Guo Ziyang agreed without thinking.

"Here," Xu Qingzhou stopped in front of a noodle shop.

Xu Qingzhou said with a smile, "Ding Jiahui likes you. At this time, you just need to work harder."

Yes, hell-level conjectures don't need to be managed for the time being. These things are like castles in the air for Xu Qingzhou, visible but untouchable.

Xu Qingzhou stayed at home for a day. The next afternoon, he received a call from Guo Ziyang asking to go online together. Xu Qingzhou refused; playing games was boring.

Xu Qingzhou looked at the message sent by Song Yao, his expression strange. How come he felt like she was pointing at him.

Xu Qingzhou typed: "Not today, I have to go find Guo Ziyang and talk about Ding Jiahui."

Girls like Tian Shuang, beautiful, active, and generous, many boys have no resistance to such girls.

Moreover, her family is quite good and quite rich, which makes her dress up better than most girls of the same age. For example, at the last high school classmate reunion, many girls were in the stage of just blending high school and university in dressing and makeup, looking strange.

Tian Shuang really came to find Xu Qingzhou, and her purpose was also very clear: to connect feelings. Among so many boys she knew, only an excellent boy like Xu Qingzhou could become her boyfriend.

However, Xu Qingzhou was impervious to oil and salt.

(End of chapter) ===== CHAPTER 155 =====