Chapter 189: Entered the wrong house?
November 4, 5 .
Xu Qingzhou went downstairs carrying his suitcase, ready to leave the city where he had stayed for seven days. Academician Xu and Senior Brother Zhao Zhenglai still had two more seminars to attend, so they had to wait another two days before leaving, so he was alone today.
To his surprise, there was a familiar blue pickup truck parked at the door.
"Mr. Zhao told me you were leaving this morning."
Catherine shook the keys in her hand and smiled softly: "I think you must need a car to take you to London now."
"Thank you." Xu Qingzhou thanked him without being polite.
The two get in the car.
The engine roared and the blue car rushed towards London.
Kathryn said with some resentment: "Xu, I left you my phone number, but you never called me once."
"I'm sorry, I'm quite busy these days." Xu Qingzhou was a little helpless.
Kathryn said, "To apologize, maybe you could look at the prime number problem in front of you. I was going to ask it that day, but the Irishman got there first."
Xu Qingzhou picked up the manuscript paper, which was about the problem of the prime number spacing law in Cramer's theorem, which involved the properties and application of the f(p) function.
"The main function of the f(p) function is to relax the upper bound to C×(log p)^α"
40 minutes passed.
London Heathrow Airport.
Xu Qingzhou let out a long sigh and looked at Catherine with lingering fear. Senior Brother Zhao took her 1 hour, but she only took 30 minutes. You can imagine how fast she was.
There was a hint of cunning in Catherine's eyes, as if she had succeeded in playing a prank, and she thought that she was just venting her anger.
"Thank you for sending me here. I'll definitely treat you to a drink next time." Xu Qingzhou sighed inwardly. He was too careless. Of course, when he knew that she was the owner of this wild pickup truck, he should have thought that she was not a good girl.
"I'll remember this agreement."
"See you."
"Goodbye."
Xu Qingzhou had just taken a few steps when he heard Catherine's voice from behind him, "Hi, Xu, I have one last question."
Xu Qingzhou turned around, met her gaze, and said with a smile, "It's proven."
After saying that, he waved and went through the airport security check.
Looking at the figure disappearing at the security checkpoint, Catherine's blue pupils flashed with a different light and she smiled faintly. He really knew what she wanted to ask.
Unfortunately, he already has a lover.
At 9:50 in the morning, after sending the last message to Song Yao, Xu Qingzhou boarded the plane and started his journey home.
The majestic urban cluster gradually shrank. After the plane's attitude stabilized, Xu Qingzhou felt a little bored and simply took out the notes he had taken down at the reports during this period. Although he did not attend the reports in the last two days, he had taken notes in half of the notebook in the first two days alone.
Have knowledge of Dirichlet's L function.
There is also Professor Maynard's idea about the prime number interval, how he proved that there are infinitely many pairs of prime numbers with an interval less than 600. Of course, the improvement is still Zhang Yitang's method, which is of no use to him now.
After all, the twin prime conjecture, no, now it should be called the twin prime theorem, has been proven.
In addition to these, there are also things in the field of analytic functions, such as analysis on the complex number field, period exploration on analytic functions, etc.
At the report meeting, everyone discussed the most cutting-edge things, the collision of ideas, and the burst of inspiration.
Attending such seminars is indeed much better than working on your own.
Xu Qingzhou moved his eyes away from the notebook and looked out the window. His thoughts gradually drifted away and he began to think about the next task.
The twin prime theorem is solved, next
Polignac conjecture.
This conjecture states that for all natural numbers k, there exist infinitely many pairs of prime numbers (p, p + 2k).
If you are unfamiliar with the name of this conjecture, you must have heard of its special form, namely k=1.
When k=1, this conjecture is transformed into the twin prime conjecture.
He has already proved the form of Polignac's conjecture k=1, so there is no reason not to continue his research.
However, challenging mathematical conjectures is only a small goal, and he does not plan to start immediately. He will first finish the physics experiments at hand and read some books to replenish his brain.
I had a layover in Warsaw and 12 hours passed just like that.
Read materials, sleep, transfer, rest, read materials, sleep. The plane landed at 6:10 am Kyoto time.
Xu Qingzhou shook his head, feeling that he was finally back to a familiar land, especially the Chinese language used by the people around him, which made him feel very familiar.
He sent a message to Song Yao, saying that he would arrive in an hour. He pushed his suitcase towards the airport, took a taxi and went straight to Yandongyuan Community.
At 7:, Xu Qingzhou got off the bus with his suitcase.
In the morning, the warm sunlight shines down. Although the branches of the trees have added a bit of green, they are still bare. The gray wall reflects the mottled light and shadows of the sunlight passing through the branches.
Finally home.
During the time I was in London, I always felt light-headed and as if my feet were not on the ground.
Xu Qingzhou squinted his eyes, enjoyed the morning sunshine for a while, took a deep breath, and walked towards Building 4 dragging his suitcase.
505.
The door was ajar, and Xu Qingzhou pushed it open and walked in.
Ok?
Eyes facing each other.
To be more precise, it was like looking into the eyes of a cat.
"Meow~"
"Sorry, we took the wrong way." Xu Qingzhou was stunned for a moment, then came to his senses, apologized to the cat, and walked out with his suitcase.
"Meow~"
Outside the door, Xu Qingzhou was still smiling bitterly, thinking that he must have been too tired during this period of time and couldn't even find his way home.
But... he looked around, and it was right here!
505, that’s right.
Fuck, it’s impossible that I even went to the wrong building?
squeak~
Just when Xu Qingzhou was doubting himself, the door was pushed open again.
A familiar and beautiful face appeared in Xu Qingzhou's sight. She had a high ponytail and was wearing an apron. Her hands were wet, and it was obvious that she had just come out of the kitchen after washing her hands.
Seeing the boy's weird and dazed look, Song Yao felt funny in her heart. The effect was good. He must have been shocked.
"What are you standing there for? Come in."
"Oh."
Xu Qingzhou followed Song Yao in obediently. The tabby cat squatted in front of the cat food bowl, staring at him vigilantly, as if it was worried that he would steal its food.
He entered the living room and noticed that there were already several dishes on the table, including twice-cooked pork, stir-fried seasonal vegetables, and a bowl of sesame oil.
My dear.
Taking back what I said just now, I now have a sense of unreality that my feet are not touching the ground.
The campus beauty of Song University has turned into a snail girl?
Seeing that this guy was standing there again, Song Yao reminded him, "Wash your hands and eat."
"Oh, okay." Xu Qingzhou nodded, and just as he was about to wash his hands, he murmured, "It's morning now."
Song Yao nodded: "Well, didn't you say you wanted to eat white rice some time ago?"
"Seems to be"
Xu Qingzhou thought back and thought that he did complain about the taste of Western food, but the scene was still a bit dreamy.
With countless doubts, he washed his hands and went into the kitchen to help Song Yao bring out the tomato and egg soup.
So, at the dining table in room 505, the two young people started to eat a strange breakfast.
Xu Qingzhou took two bites of rice and finally couldn't bear it anymore. He put down his chopsticks and said seriously: "I have a question."
"Ok?"
Song Yao nodded. She knew she could surprise Xu Qingzhou.
Xu Qingzhou's face was serious, and he said, "Tell me, which restaurant did you buy these dishes from?"
"Xu Qingzhou!"
(End of this chapter)
