Chapter 327 Song Yao: 5 minutes is already a long time
Xu Qingzhou sat down at around 2 o'clock. When his thoughts were taken away from the complicated calculations, he noticed that it was already 6 o'clock in the afternoon. He shook his head, thinking that his body was not to blame. Already protesting, there are waves of powerlessness.
There is a thick stack of manuscripts piled on the desk, full of formulas.
Although it is just a framework, I can figure it out when I encounter interesting places.
“Hu~”
Xu Qingzhou let out a long breath, twisted his sore neck, and picked up his phone. There were two messages about Song School Belle.
Song Yao: Senior Sister Han and I went to eat noodles.
Song Yao: "Picture.JPG."
In the evening, I ate noodles with the senior sister in the research group and took photos.
This is how they usually chat, simply sending photos of meals. When both of them are busy, the topic will stop abruptly.
Song Yao: "I ate two pieces of garlic, and it will stink you to death at night."
Song Yao: "Picture.JPG."
Xu Qingzhou was helpless, thinking: "Why do I feel so bad? Taking the painting style of Song school beauty astray Okay, is this what a goddess should say?"
Xu Qingzhou typed: "I want to eat noodles, it smells bad, who is afraid of who?"
Song Yao: "I don't dislike it. You.”
Xu Qingzhou: "I despise you."
Song Yao: "I'm going to hit you hard."
Xu Qingzhou went to the cafeteria, finished eating noodles, replenished his energy, and then returned to the library The museum continues to struggle.
The framework has been set up.
His goal is to explore the establishment of a variable coefficient version of the square function inequality through the bilinear method, thereby improving the Mockenhaupt-Seeger-Sogge local smoothness.
Three mathematicians, Mockenhaupt, Seeger and Sogge, proposed a result on local smoothness when studying the Fourier integral operator.
Specifically, it involves the smoothness change of the function after the Fourier integral operator is applied.
He intends to conduct research and improvements on this basis. In addition, you can also discuss its connection with other mathematical conjectures.
As Academician Chu Jiangfeng said, the local smoothness conjecture is one of the current research hotspots in the field of mathematics. Partial differential equations, harmonic analysis, geometric measure theory, number theory and other fields have strong internal connections.
Just like the local smoothness conjecture of the half-wave operator in Euclid space is an advanced form of many famous mathematical conjectures, it directly means the Bochner-Riesz conjecture, restrictive conjecture, Kakeya conjecture, etc.
Although the local smoothness conjecture of the Fourier integral operator is labeled as a conjecture, it is actually significantly different from the conjecture he studied before. The research on the local smoothness of the Fourier integral operator is directly mentioned in many places.
It is not a complete conjecture proposition like Kramer's conjecture and the twin prime conjecture.
Library, Xu Qingzhou stared at the manuscript paper in front of him.
According to previous habits, when studying something, we must first figure out what it is, that is, first write down the definition of the Fourier integral operator.
The definition is also not simple. It does not end with a sentence about where the Fourier integral operator originated and what kind of tool it is.
Xu Qingzhou tapped his fingers on the manuscript paper, thinking about where to start.
Ten minutes passed and he began to write.
In order to introduce FIOs (Fourier integral operators), two typical examples can be considered.
[The prototype of FIOs comes from the following half-wave operator: eit\begin{cases}(\)=f_0(x), \\partial_tu(x, 0)=f_1(x).\end {cases}]
[Assume that functions /0 and A satisfy appropriate regularity, note ./+: =i(/0-i(v^A)-1/i), /_^^ (/o+Kv^A)-1/!)】
It can be seen here that the two items on the right side of 1.2 can be expressed in the same form.
[[f_+:=\frac{1}{2}(f_0-i(\sqrt\frac{1}{2}(f_0+i(\sqrt{-\Delta})]< br>
Time passed by minute by second.
At 10 o'clock in the evening, Xu Qingzhou had arrived at the door of the scholastic academy. < br>
The night sky is clear, the moonlight is very good, the bright moonlight pours down, like a thin layer of gauze spread on the earth, there is still some time before school, there are already many people on campus, The scroll kings went to school to curl up after the Chinese New Year. A few people walked out of the scholastic building, carrying schoolbags and walking in a hurry. They looked like they had just finished their self-study.
Xu Qingzhou rubbed his hands and stamped his feet to wait for Song Yao.
The temperature dropped sharply at night, and even the layers of clothes wrapped around me could not withstand the cold.
The award ceremony for the Wolf Prize in Mathematics is in Israel. On the morning of the 19th, Xu Qingzhou will fly to Jerusalem with Academician Chu Jiangfeng and the others, followed by a five-day exchange meeting.
The visa and materials have been settled. In the fax sent to him by the Israeli "Wolf Award Foundation", he was specially invited to give a 40-minute report meeting.
Just summarize the contents of the previous report meetings.
Xu Qingzhou waited for a few minutes and finally saw two familiar figures appearing at the top of the stairs.
Song Yao and Han Shiqi.
As they approached, Han Shiqi nodded to Xu Qingzhou as a greeting, and said with a smile: "Junior brother and sister, I have something to do, so I'll leave first."
"Goodbye, senior sister."
Xu Qingzhou said, already holding his soft little hand.
"Your hands are so cold."
Xu Qingzhou said miserably: "I have been waiting for you for almost 5 minutes. It would be strange if they are not cold. Tell me how to compensate me."
"Well, five minutes is already a long time." Song Yao said.
“.”
"There is an ambiguity in what you said, Mr. Song~"
Xu Qingzhou deliberately emphasized the last three words. What do you mean, 5 minutes is already a long time. Who wet the sofa last night?
In the distance, there was originally an intersection, but Han Shiqi deliberately slowed down, so she could just see Xu Qingzhou and Song Yao.
Looking at the cp she was eating, her yearning for sweet love once again emerged in her heart.
Needless to say, Xu Qingzhou is a big boss and a genius in mathematics. Junior Sister Song is only her sophomore year, and she already has a SCI in the first area. Professor Li has taught her everything.
Double strong cp!
Knock until death!
This is no better than the industrial saccharin in the idol dramas I usually watch!
Wait!
Han Shiqi, who was feeling high from her CP consumption, suddenly paused in her eyes. Just now, was Junior Sister Song hitting Junior Brother Xu?
Are you fighting?
Have you raised your fists?
This is the second time I have seen this scene.
But.
She quickly denied herself: "No, it's impossible. Junior Sister Song is so quiet, how could she do anything casually? This is not in line with the image of the iceberg goddess."
On this side, Xu Qingzhou clutched his chest and stared at Song Yao resentfully, "Sooner or later I will be beaten by you."
"Humph, don't think that I don't know, it doesn't hurt at all."
Song Yao pouted, she didn't use any strength, and she was still wearing such thick clothes.
“You don’t know how strong you are?” Xu Qingzhou complained, rubbing his chest.
"Does it really hurt?" Xu Qingzhou's serious expression made Song Yao doubt herself.
"It hurts very much."
Xu Qingzhou emphasized so much that Song Yao didn't believe it. She held back her strength, it hurt so much. Such a smart person always made such stupid excuses.
She glanced at her boyfriend: "Then what do you want?"
"Let me kiss you."
"No." Song Yao subconsciously refused, Although there were not as many people on the road as usual, there were still two of them, and it was a large gathering of people and was offensive to morals.
Xu Qingzhou shrugged. He knew he would be rejected, but he just wanted to tease him.
(End of this chapter)