Chapter 210 I have to find time to learn two moves The next morning. At 8 o'clock in the morning, Xu Qingzhou went to the restaurant for breakfast with a senior brother named "Zhang Hong". Senior brother Zhang was a student of Professor Feng in the argumentation group and is now a second-year doctoral student. At the entrance of the hotel restaurant, he also met two other professors from Kyoto University. "Xiao Xu is here." "Professor Feng." "Come, Xiao Xu, let me introduce you. These two are Professor Lu Ling and Professor Jiang Shiding from the School of Mathematics. The other two professors did not come with us. They went to the venue first." As soon as Xu Qingzhou arrived, Professor Feng pulled him over to greet the professors who were also from Peking University. in the country, family background is important, while academic pursuits are important. The two professors were very enthusiastic and praised Xu Qingzhou, who also graduated from Peking University and was a mathematical genius. Xu Qingzhou responded to each of their comments.
Zhang Hong calmly greeted Professor Feng and the two professors. Professor Lu Ling looked at Zhang Hong and asked with a smile: "Xiao Zhang, you look like this, did you stay up late again?" "I endured it for a while." Zhang Hong nodded. Xu Qingzhou looked at the two big dark circles under Senior Brother Zhang's eyes and thought that it might not be as simple as a moment. Based on his experience of staying up late, he must have gone to bed at least after 5 o'clock. "Xiao Zhang, as academics, we still need to take good care of our health," Professor Jiang Shiding also said. Professor Feng glared at Zhang Hong unhappily: "Did you hear that? Pay attention, kid." Zhang Hong forced a smile on his face: "I understand, teacher." Professor Feng shook his head, knowing that his student had not listened at all. He then said hello and went to the lecture with the two professors. Xu Qingzhou and his companion went to have breakfast first, and then went to the lecture hall of Jinling University together. Zhang Hong held the latest issue of "Mathematical Inventions" magazine in his hand. "Junior brother, here is the asymptotic formula for twin primes. Can you explain this approximation method?" "Here, in order to prevent R in (23) from increasing too fast, we require that λd is always zero when d>z on the basis of λ=1. Combining (17) and (25), we can find that the restriction on λd can be perfectly transformed into the restriction on Uk." This question is on Xu Qingzhou's list of questions, so he can answer it without even thinking about it. He found that Senior Brother Zhang was quite interesting and a real math fanatic. We chatted about math problems and the journey was not boring. We arrived at the lecture venue in just over ten minutes. The process of this type of conference is similar. One or two large reports are scheduled every day, with speeches given by well-known experts or scholars in the field. The rest of the time is spent on small group discussions held in the venue provided by the organizer. However, when you walk into the venue, you can find a style that is completely different from that in Cambridge. The atmosphere is more serious. At least you can't see people holding posters and shouting everywhere. The influence of this special conference in China is second only to the annual Xiaguo Mathematical Conference. It has a very high influence in Xiaguo, but it is slightly lacking internationally. Xu Qingzhou took a look and saw that those coming and going were all people from Xia country. After signing in, I entered the hall smoothly.
The first speaker was Professor Sun Weizhi, who talked about his latest discovery: all integers greater than 4 can be expressed as the sum of an odd prime number and two positive Fibonacci numbers. Xu Qingzhou and Zhang Hong found an empty seat and sat down. Professor Sun Weizhi is currently the leading figure in the field of number theory at Xia Guozhong. In order to study the distribution of prime numbers, he had read Professor Sun Weizhi's paper "A New Proof of the Erds-Ginzburg-Ziv Theorem", a finite set of integers. 9: am. Professor Sun Weizhi came to the stage and began to explain his latest discoveries. Xu Qingzhou took out his notebook and took notes, and soon immersed himself in the professor's explanation. Time passed by, and he finally found his feeling of being in Cambridge. At 10:20 am, the lecture ended. Senior Zhang followed Professor Feng to attend a panel discussion on the theme of "Gauss's Quadratic Reciprocity Law". Xu Qingzhou planned to walk around first, find something that interested him, and then go in to listen. However, just when he turned half a circle, someone grabbed his arm fiercely, which scared him. "Xu Qingzhou?!" It was a young man with a European face, and he called Xu Qingzhou's name with a strange accent. Xu Qingzhou nodded, but wanted to correct himself, I’m not weak at all. The young man seemed to not know Chinese, and shouted in exaggerated English: "Oh, it's you! Damn it, you know that because of you, all my efforts for a year have gone to waste!" Xu Qingzhou took a half step back without leaving any trace. The look in the other person's eyes made him wonder if this person wanted to hit him. What moves did School Beauty Song often talk about using on him? A throat lock, a fatal scissor kick. Damn, I don’t know any of them. I really need to find some time to learn a few moves from Song Yao. The young man's face became even more excited, and he punched Xu Qingzhou in the chest. Of course, it was just a light punch, "Brother, well done!" Xu Qingzhou's forehead was full of black lines. If you are like this, don't even think about praising me. Even if you say you want to hit me, I will believe it. The young man extended his hand and introduced himself with a smile: "Xu, nice to meet you. My name is Denzel Dennison. I am currently teaching at the Berkeley University, doing research on prime numbers." "Hello, Denison." Xu Qingzhou shook hands with the other party. Deng Zeer was not shy at all and said, "Do you have time? I have many math questions to ask you." "Of course." Xu Qingzhou nodded and said in English with a smile: "Before that, we have to ask the organizer to borrow a classroom." The procedure is quite convenient. You just need to register the topic of the discussion group with the staff. At this time, Deng Zeer glanced at his phone and said apologetically, "Xu, I'm afraid you need to wait a moment. I have to pick up two friends. Let me tell you secretly, they are here for you too." Xu Qingzhou nodded. He was also unfamiliar with Jinling University and was unable to do anything about picking up the person. However, when the staff heard this, they took the initiative to express their willingness to join in. Under the guidance of the staff, Deng Ze'er went out to pick people up, while Xu Qingzhou walked slowly towards the second floor. The classroom assigned to them was on the 2nd floor, classroom 209. There are people in the classrooms in front. For example, in classroom 205, there were formulas written on the blackboard, which seemed to be about Riemann functions. Several professors with thinning hair were pointing at the blackboard and expressing their opinions. Classroom 209 was empty. Xu Qingzhou hadn't entered yet. A head popped out from classroom 210 in front of him. It was a girl wearing a mask. The other party waved his hand and urged: "That student, hurry up!"
Seeing that the girl seemed to be targeting him, Xu Qingzhou had a strange expression on his face. He looked around and saw that there were only two uncles around him. It seemed that he was the only one who could be called a "classmate", so he walked over. "Why are you alone?" The girl with her hair tied in a bun pulled Xu Qingzhou into the classroom, complaining. There was already a thin layer of sweat on her forehead. She handed Xu Qingzhou a mask first, "Just one, I'm busy as hell. I need to clean everything here before 11 o'clock. By the way, please move these two tables over there first." Deng Ze'er would probably be back in a while, so Xu Qingzhou had nothing to do, so he just put on a mask and helped with the work. In addition to the people from the Mathematical Society's preparatory group, there were also organizations like the Jinling University Student Union helping out. This girl must have regarded him as a volunteer. (End of this chapter)