CHAPTER XXIII

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Unbeknownst to Xie Xingxing, the tranquility of his hometown was being messed up by the media reporters who came to look for him, he was preparing for a speech in the conference room. In addition to a few academicians and the staff of the Institute of Mathematics of the Chinese Academy of Sciences, all the famous mathematics professors in Beijing rushed to this small auditorium.

"A few days ago, the Institute of Mathematics and I both received a paper that claims to prove the world-famous mathematical puzzle - the Poincaré conjecture. In order to verify this achievement more quickly and make it recognized by the international scientific community, we invited the author of this paper, Xie Xingxing, to explain the paper to us. Thank you for your pleasure. Academician Gu Lixia personally spoke the opening speech.

"Hello everyone, hello teachers, hello seniors, I'm Xie Xingxing. In this talk, I will mainly explain my solution, proof method and detailed process of Poincaré conjecture. In 1904, the French mathematician Henri Poincaré proposed a topological conjecture: any single-connected, closed three-dimensional manifold must be homogeneous to a three-dimensional sphere. ”

"To put it simply, a closed three-dimensional manifold is a three-dimensional space without boundaries; Single connectivity means that every closed curve in this space can be continuously contracted into a point, or in a closed three-dimensional space, if each closed curve can be contracted into a point, this space must be a three-dimensional sphere.

Later, this conjecture was extended to more than three dimensions, and it was called the "high-dimensional Poincaré conjecture". ”

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The presentation started at 9 a.m. and ended just after 11 p.m. A group of researchers with a minimum of Ph.D. education and a gray-haired old professor kept asking questions shamelessly, frequently interrupting Xie Xingxing. During the lunch and evening breaks, Xie Xingxing was completely surrounded and constantly answered their questions and opinions. The one-day presentation only clarified the methodology and proof process, and there are still many details that need to be further communicated.

"Xie Xingxing, you are really a hero, I invite you to join on behalf of the Chern Institute of Mathematics in Nankai, as long as you join, we will immediately help you solve the problem of work and house, you can skip the undergraduate study directly in Nankai, we will directly award you the undergraduate diploma of the Department of Mathematics, and all the graduate tutors of Nanda will choose from you." Another academician invited Xie Xingxing during lunch between speeches.

"You're all late, I'm happy that I have been specially admitted to our Beijing Normal University Hall, and I have also signed a contract with the Institute of Mathematics of the Chinese Academy of Sciences. Haha...... "Academician Gu Lixia felt that he had signed Xie Xingxing in advance, and he did a very beautiful job."

"You old rascals, you are so fast, Xie Xingxing is thinking about it, and we will help you pay the liquidated damages." Another academician was also going to make an invitation, but who knew that there would be no hope before the words were spoken.

"We're hooligans, what's the matter, you bite me if you have an opinion. Besides, if you want to go to Beijing Normal University, Xie Xingxing applied for it herself. Professor Li from the Jingshi University Hall also joined the battle group. These scientists are old acquaintances, so they are generally ruthless.

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After the speech, it was almost 12 o'clock in the evening, everyone was tired, packed up and went home, and went back to the dormitory. The last Xie Xingxing slowly walked to the back row of the small conference room and woke up Zhong Yaqing, who was asleep on the table. Zhong Yaqing could understand some of the content in the morning, but she didn't understand it at all in the afternoon, and after seeing that Xie Xingxing was okay, she went out to do something, and directly brought her graduate thesis here to write in the evening.

"Sister Yaqing, I'm sorry for letting you wait for me like this." Zhong Yaqing fell asleep at almost 11 o'clock, and as the keynote speaker, Xie Xingxing would not be easy to speak, so she went back to the dormitory to rest first.

"It's okay, I'm not waiting for you, is it waiting for you to find the dormitory in the middle of the night and get lost, and then look for you all over the capital in the middle of the night." Zhong Yaqing looked at Xie Xing very charmingly, and got up to clean up her things.

"Sister Yaqing, we should be free tomorrow, let's go out and have fun, okay. casually sold the gold bricks and exchanged them for some money. Xie Xingxing casually took Zhong Yaqing's things and went out of the door, saying.

"You loser, you really sell, you don't need money now. Even if you really want to buy a house, don't be in such a hurry, you have signed a contract with the institute, and the dormitory here is not bad, you can live in it first. Zhong Yaqing persuaded again.

"I thought that I would have to stay in the capital for at least a few years in the future, and it would be more convenient to buy a house in Beiping, and the house prices would definitely rise sharply in the future, and it would be good to wait for the appreciation of the value." As a generation that was miserable by housing prices in his previous life, Xie Xingxing is very sensitive to housing prices. Although the economy of this world is better than in the previous life, the housing prices did not rise much before, and now the time period is less than the time when the housing prices in the previous life began to soar.

"Your gold can be regarded as antiques, I just went to visit Panjiayuan, the antique industry is very deep, I am afraid of being deceived." Zhong Yaqing saw that Xie Xingxing had made up her mind and didn't say more, but she was a little worried, although even if she only sold it as gold, it was worth the old nose money, but everyone hoped that if she could sell it for more money.

"Didn't we just meet a friend in the morning, tomorrow I'll ask him if he's familiar with Panjiayuan." Xie Xingxing didn't care, anyway, as long as there was merit, gold and money were really just numbers to him.

The wind of the summer night is exciting, blowing slowly, exceptionally fresh and cool. After talking, the two of them slowly walked towards the dormitory of the Institute of Mathematics against the wind, and soon a tube building appeared in front of them.

"Don't look at the outside of this tube building, in fact, the inside has been renovated, and each set has a bedroom, a living room and a bathroom. Many people who come to the Institute of Mathematics from other places to work and travel live here, and the environment is actually not bad. Zhong Yaqing introduced.

"Oh." There was only one bed in one bedroom, one living room and one bathroom, and Xie Xingxing thought of that awkward morning yesterday.

Entered the room, the room is very nice, the decoration is very simple, but the sofa, TV, air conditioning, heating are available. The room was cleaned up by Zhong Yaqing, but Zhong Yaqing's luggage was not all taken out, and it seemed that she was only planning to spend one night here.

"Sister Yaqing, you don't plan to accompany me here, I'll get lost" Xie Xingxing blurted out.

"Aren't you that old and can't throw it away? This is the mobile phone I went out to buy for you today, which is a gift from your sister when you go to college. Call me if you lose it, it has my number in it. Zhong Yaqing looked at Xie Xing happily and took out a new mobile phone from her bag.

"Hungry." Xie Xingxing took the phone, as if he was a little unhappy.

"You sleep on the couch today, hmph, so that you dare to peek at me." Zhong Yaqing threw a pillow out, ignored Xie Xing's embarrassed expression, and closed the door directly.

PS: For more information on what happened next, see O(∩_∩)O below