Chapter 322: School Beauty Song's idol burden is gone

8:30 AM.

The sun has come out, and the sunlight penetrates the glass and falls on the windowsill.

In the bedroom, Xu Qingzhou and Song Yao are both lying in bed and haven't gotten up. They have been running around outside for seven or eight days, and last night they experienced another hearty battle. They were already very tired, and now... even more tired.

Song Yao is taking a nap, Xu Qingzhou has no sleepiness, but doesn't want to get up either. He ran out of ammunition and food last night, and now just wants to lie down and rest.

School Beauty Song, who is curled up in the quilt in the morning, is particularly charming, with fair cheeks and pink, occasionally making dream talk, especially after the two are honest with each other, she is completely let go. When sleeping, she often hums and arches in his arms a few times.

Looking at the girl in his arms, Xu Qingzhou couldn't help but be dazed. The first time they met, he was still in the trance after rebirth, and School Beauty Song passed by with her little sister Ding Jiahui, and even glanced at him coldly.

Then there was borrowing a meal card in the cafeteria, meeting by chance in the library... Memories of Song Yao emerged bit by bit from his mind.

His life has also undergone earth-shaking changes. According to his original plan, he would lock his heart and love, focus on research, and walk the emperor's road again.

The layout of the bedroom hasn't changed much, but there are a few bags of rice and a few barrels of oil piled up in the corner. They should have been issued by the unit again. They couldn't finish eating, so they piled them into his room.

Read! {

After eating breakfast, the two headed towards the school.

"I just arrived."

Zhang Qiong shook her head and sighed with a bitter face: "I'm not the two of you, in a relationship, and still able to maintain grades."

Moreover, it can also reveal the frequency components and phase information of the function by representing the function as an integral form of a series of sine and cosine functions.

Academician Chu paused and asked with a smile: "Have you thought it through?"

Reasonably speaking, there are quite a few people chasing her.

After being silent for a while, Xu Qingzhou understood a little, and with a sullen face, he picked the fried egg back and said: "I don't need to eat another one."

Simply put, whether it is math or physics, it can be used.

Fourier integral operator, also called Fourier integral operator, is an important tool in the theory of partial differential operators, used to describe and solve partial differential equations, especially wave equations and hyperbolic equations, etc.

Just arrived at the door, the door had already been opened. Wang Nushi took the suitcase and said: "You didn't even know how to come in when you arrived, standing outside like a silly baby."

Song Yao: "Home?"

The time was not coincidental, so the two families simply moved the dinner time to Saturday night.

Xu Qingzhou's emotions had just brewed, and Wang Nushi's voice suddenly came from the window on the first floor.

"Okay~"

Listening to Song Yao finish the places they had visited during this time, Zhang Qiong's expression was yearning, "I envy you so much, I don't know when I can be like you."

It's a good thing for young people to have drive. Anyway, this kid is still young, so he doesn't have to be like these old guys, wanting to try new fields, but already powerless.

Up to this point, the questions Xu Qingzhou asked had been finished. Academician Chu asked with a smile: "The Polignac theorem has come to an end, and the travel is over. Have you determined your research direction?"

At 10 AM, the sunlight fell on him, finally making people feel some warmth. Jingda had already had a holiday, and there were less than half the people on campus than usual.

Xu Qingzhou sat down and reminded: "Mom, son just came back, shouldn't you care about son's situation first?"

There were many things at the end of the year. Old Xu and Wang Nushi were busy with work, Old Song went on a business trip to another place, and Zhang Junli was also dealing with work, so there was no time to pick them up. He and Song Yao took a taxi back themselves.

Time passed rapidly.

Home.

Overall, he is definitely countless times stronger than his previous life in terms of physical body.

"A bit hot." Song Yao shook her head and picked the fried egg in the bowl into Xu Qingzhou's bowl.

Song Yao had already been immune to Xu Qingzhou's actions. She was sleepy, lay on the bed and was dazed for a while, then came back to her senses, pulled the person who was taking advantage of her, and pressed him on the bed, "ba" a few times.

Yang Yongze was originally calculating with his head down, looked up, and said in a deep voice: "Junior Brother, this project is not simple."

On the side, Song Yao just happened to see her boyfriend holding his waist, her hand eating noodles paused, and a blush climbed onto her ears.

"It's quite festive."

She didn't know that this wasn't an egg, but a man's dignity! Two days passed in a flash. On the third night after returning, Xu Qingzhou, who was focused on scientific research, was pulled by School Beauty Song to exercise on the playground.

"Regarding the latest research, Professor Doreen Lewis from Cambridge used tools like bilinear methods and square function inequalities to improve the results of Mockenhaupt-Seeger-Sogge local smoothness, and also analyzed the difficulties and possible ways to solve the conjecture. But I heard the effect is not very ideal."

Xu Qingzhou: "I have this here."

At the end of January, some of the people who stayed at school to read had left again, and only Zhang Qiong was left in the dormitory. This wasn't it, she was lonely, and Xu Qingzhou and Song Yao came back, so she sent a message to make an appointment for dinner.

"Dad."

It is normal for the bedroom to be used as a storage room, but what made Xu Qingzhou a bit numb was that his bed sheet had been changed to a big red bed sheet! "Where is my previous bed sheet?"

Academician Chu nodded: "It is indeed very challenging, and it is also a research hotspot. Many research groups in the world are doing research on the local smoothness conjecture. Your competition pressure is not small."

The person on duty at the door is still an acquaintance.

Now his suitcase has successfully become as heavy as School Beauty Song's. So many clothes, I don't know how Song Yao stuffed them in. If it were the past, for a holiday of less than ten days, he would estimate bringing some document materials and two clothes back.

Although she was scolding him, Mrs. Wang could not suppress the corners of her mouth, beaming with joy.

"Stink you to death." Song Yao hummed, climbed out of the quilt, the delicate skin on her chest was a bit red, revealing two slender and white legs.

Wang Nushi nodded. "That's good, let her rest well. After rushing for seven or eight hours, she should be tired."

"Hmm, right, arrived today." Xu Qingzhou was ashamed. Where is it on TV every day? It's clearly Weibo, okay? However, in the eyes of Uncle Zhang and the others, Weibo trending and TV should be about the same.

The last question is related to the convergence of Fourier series in broader function spaces.

Xu Qingzhou didn't struggle much. Running and exercising to cultivate sentiment, strengthening kidneys and body, is still no problem.

"Okay."

Seeing Xu Qingzhou was very sure, Academician Chu nodded slightly. Although he was a bit regretful, he supported the general direction. After all, he was involved in many fields.

Xu Qingzhou plans to finish "Introduction to Fourier Analysis on Euclidean Spaces" in two days.

Song Yao: "Give my regards to Uncle and Auntie."

Zhang Qiong: "?"

"Fourier integral operator's local smoothness conjecture." Xu Qingzhou answered.

Coming out of Academician Chu's side, Xu Qingzhou went straight back to the library.

After supplementing knowledge for almost a month, he determined his research direction for a period of time in the future—Fourier integral operator's local smoothness conjecture.

Academician Chu nodded with appreciation, very satisfied with this student. Any problem is understood at once.

The two found an empty seat on the third floor.

Nongyuan Restaurant.

Xu Qingzhou asked curiously: "One and a half years, you have no thoughts?"

The familiar old building, the familiar smell of food, the familiar nagging.

Uncle Zhang was wearing a military green coat, holding a thermos cup in his hand, and greeted with a smile: "Little Xu?"

Ding~ He hadn't reached the gate of the community yet when his phone rang with a message prompt. Xu Shouyun nodded, with a smile on his face, and said: "Wash your hands, eat."

Xu Qingzhou: "Community gate."

Rongcheng, 5 PM, the sky was dark, the street lights were already on, the leaves of the plane trees on both sides of the road had long fallen, leaving only bare trunks.

Xu Qingzhou subconsciously touched his waist and didn't refute, thinking to himself that being in a relationship would indeed distract energy, hurt the waist, and the waist was a bit numb when getting up in the morning.

Xu Qingzhou resigned himself to his fate; he didn't even struggle. Only after he had been sufficiently ravaged by the school beauty Song did he sit up. "Kissing me the moment you wake up?"

Fourier integral operators can convert wave functions from one representation to another, such as changing spatial representation to momentum representation, thereby reflecting the particle's momentum distribution and frequency components.

Zhang Qiong sat opposite Song Yao and soon discovered her abnormality: "Little Yao, what's wrong with you?"

"Hmm, arrived, the meal is estimated to be eaten." Xu Qingzhou said.

Standing here, you can also smell the faint smell of food.

Wang Nushi also urged him when she called last time, asking Xu Qingzhou and the others to go back early, but there was no way, Song Yao had to follow Professor Li Daiyue's project, and he also wanted to read books at school.

"Hmm, right, the last place we went to was Dongfeng Aerospace City, watched the satellite launch on the morning of the 27th... returned only last night."

Xu Qingzhou smiled and followed Wang Nushi back to the bedroom.

However, in Xu Qingzhou's view, it's good to go back late. Wang Nushi's visual fatigue waiting period is only three days. The first few days were very kind, every day was all kinds of delicious food, and next was all kinds of dislike.

Quantum mechanics describes the motion and interaction of microscopic particles, where the wave function is a key concept.

After putting down the luggage, Xu Qingzhou came out, washed his hands, and helped serve the rice.

"You stand there like a door god, hurry in!"

Song Yao nodded: "Hmm, eat another one."

Xu Qingzhou and Song Yao both went to the library. Professor Li Daiyue went to Guangdong Province for a meeting and needed to come back tomorrow, but the task had already been assigned to Song Yao.

At this time point, the familiar grandpas and grandmas on weekdays hadn't gone out for a walk yet. Most of the people in the community were office workers who had just finished work after a busy day. Xu Qingzhou didn't encounter the scene of being surrounded.

On February 3rd, Xu Qingzhou went to the School of Mathematics to find Academician Chu Jiangfeng, which was the last meeting before the New Year, just in time to ask about a few problems he encountered.

Looking at the building, Xu Qingzhou sighed in his heart. No matter how well he is doing outside, every time he comes back, there is always a sense of peace.

Xu Qingzhou didn't refute, thinking about finding time to buy a lighter color. This big red peony is a bit hard to control.

!.

Wang Nushi was very concerned about her "future daughter-in-law" and asked: "Little Yao is home, right?"

What are these two doing? Isn't it just an egg? Is it necessary to be like this?

He actually wanted to tell Xu Qingzhou that even mathematicians who have been engaged in this research for many years have not achieved any results, so Xu Qingzhou must have mental preparation.

Xu Qingzhou replied "Okay," and then pushed the suitcase toward the community.

Of course, this is just one aspect of Fourier integral operators.

Academician Chu Jiangfeng has a solid foundation, and his experience and knowledge depth in harmonic analysis are far beyond Xu Qingzhou. Basically, as soon as Xu Qingzhou speaks, Chu Jiangfeng can find the key point and explain it simply and clearly.

Xu Qingzhou shook his head, took the clothes out of the cabinet for Song Yao and handed them to her, thinking to himself that School Beauty Song has less and less idol burden.

Song Yao slowly told the journey of last week.

"You?"

Even if Zhang Qiong can't reach the level of school beauty or department beauty, her appearance is already good. Her personality is somewhat similar to Ding Jiahui, not as secondary as Ding Jiahui, but also quite fun, carefree.

"Hmm, this idea is good, you can try it." Academician Chu nodded with appreciation, very satisfied with this student, any problem is understood at once.

The two found an empty seat on the third floor.

Nongyuan Restaurant.

Academician Chu thought for 10 minutes and said slowly: "Here, just assume this integral converges absolutely, that is ∫x0x0+t|f(x)|dx... ===== CHAPTER 323 =====