At three o'clock in the morning, a transport plane landed in the airport of Plant 221.
On the runway, Li Aiguo hugged Chi Chi and shook hands with the comrades who came to see him off.
"Patriotic, good luck all the way!" Director Li shook hands with Li Aiguo.
Li Aiguo stretched out his hand at Professor Qin: "Old Qin, the follow-up proof of the geometric conjecture is enough to do it in his spare time, don't waste too much energy."
Professor Qin originally planned to continue studying the Poincaré conjecture.
Hearing this, he knew that Li Aiguo was worried that he would delay his work, so he nodded and said, "Aiguo, don't worry."
Li Aiguo also had good intentions.
Although Li Aiguoliu's theory is available, it is still a long way from the Poincaré conjecture to complete the homework.
Many mathematicians have spent their entire lives and cannot break through this last step.
Li Aiguo waved at the old cat again, turned around and prepared to board the plane.
At this time, a Gas jeep was racing in the distance.
The Jeep stopped, and Chief Zhang of the Security Regiment got off the Jeep accompanied by a confidential officer.
Chief of Staff Zhang also saw Li Aiguo and his expression was a little ugly.
He turned sideways and walked over to Li Aiguo and others, boarded the plane first, and the confidential officer followed closely behind.
Li Aiguo looked at Director Li and asked, "Director Li, what's going on?"
"Captain Zhang is in poor health and is not suitable for the work of Factory 221. The old regiment commander originally planned to let him return to the place." Director Li squinted his eyes and looked at Chief Zhang's back: "However, considering that Chief Zhang has participated in too many work of Factory 221, he is already considered a confidential person. So after repeated weighing, the superiors transferred Chief Zhang to the Production and Construction Corps to stay for a few years. After getting out of secret, they will arrange work separately."
In this year, most of the frontier production corps were built in barren areas, with no people in a radius of hundreds of miles, and it was a good place to accommodate confidential personnel.
It's just that the conditions are too difficult.
Waving his hand to say goodbye to his comrades, the transport plane flew into the sky.
Along the way, Chief of Staff Zhang sat in a chair and pulled his head without saying a word. The confidential officer followed him closely, looking alert.
Li Aiguo didn't mean to say hello, and the atmosphere in the cabin was dull.
More than two hours later, the transport plane temporarily landed at the airport of the Frontier Production Corps. Chief Zhang stood up and walked downstairs accompanied by confidentiality officers.
Walking to Li Aiguo, he stopped, as if he wanted to explain something, but was reminded by the confidential officer: "Comrade Zhang, please pay attention to discipline."
Chief of Staff Zhang sighed and turned around and got off the plane. Li Aiguo could vaguely hear a voice from outside the cabin: "Welcome to Yanqi, I am the Confidentiality Section of the 9th Agricultural Construction Division"
The plane took off again, Li Aiguo closed his collar, held Chi Chi in his arms, leaned against the wall of the warehouse, and fell into a deep sleep.
****
On the 28th day of the New Year, Li Aiguo returned to the capital that belonged to him (not belonging).
The Chinese New Year is coming soon.
The pedestrians on the street were full of joy, the children were playing freely, and the air was filled with a sense of joy.
Li Aiguo got off the jeep, waved goodbye to Lao Zhang at the weather station, and entered the courtyard with a large bag of small bags.
The third uncle was fiddling with his salted fish in front of the door. When he saw Li Aiguo coming in, he greeted him: "Aiguo is back."
"I'm busy, Mr. Third." Li Aiguo didn't stop and walked straight to the backyard.
The third uncle scratched his head and looked at Li Aiguo's back: "Where did this kid get a puppy?"
The three aunts came out with coal ash, fell into the flower pond at the door, and asked casually, "What puppy?"
"You didn't see that a dog's head was poked out from his patriotic arms just now. It was still a black and white spotted dog." The third uncle said, shaking his head: "Now people are just having enough food, but they actually want to raise a dog."
Yan Jiecheng squatted beside him brushing his teeth and spit out the toothpaste foam: "Dad, patriotism is more than 100 yuan a month. I heard that there are benefits in the instant noodle factory and I can't afford to raise a dog."
"What do you know? I'm worried that other residents will have opinions." The third uncle looked at Yan Jiecheng: "When you have the skills, give a reminder to Patriotic countries. No matter whether he listens to the advice or not, he must read it to us."
Yan Jiecheng gave a thumbs up: "Dad, you are still a thief."
"Hey, you bastard, have you said that to your father?" The third uncle picked up the broom and pretended to beat Yan Jiecheng.
Yan Jiecheng jumped up from the ground, turned around and ran away: "Dad, don't leave me food at noon."
He ran away.
"This child is not at home during the New Year."
The third aunt was still going to stop Yan Jiecheng, but was stopped by the third aunt: "No matter what, I must have gone to Yu Li's house to help my father-in-law split the firewood."
When talking about Yan Jiecheng and Yu Li, the third uncle was full of money.
To be honest, the third uncle looked down on Yu Li, who had no formal job.
But after the "Zhang Guifang" incident, the third uncle did not dare to force Yan Jiecheng again.
If this guy really brings him a country wife back, it will be troublesome.
At this time, Li Aiguo had already opened the door.
Chen Xueru is making dumplings at home with He Yushui and Huang Sen.
Seeing Li Aiguo coming back, Chen Xueru hurriedly put down the dumplings, took out a towel and wiped his hands, and came up to take the bag from his hand.
"Don't worry, there are a few fish in it, so you have to take it out quickly." Li Aiguo put his bag on the ground and opened the bag. There were more than ten inside.
Yesterday in the fishing team, his ten fishes were given to Liu Hong and Chen Dainian as wedding gifts. Before leaving, the fishing team gave more than ten fishes.
This is the first time Chen Xueru has seen this kind of fish: "Brother Patriot, what kind of fish is this?"
"Huangyu, a kind of fish on the plateau, tastes very good." Li Aiguo said as he hung the fish on the rope.
He bent down, and the food in his arms was awakened by teasing. He poked his little head out of his arms, and his black little eyes looked around.
"Ah, this, this." Chen Xueru was shocked when she saw Chi Chi, and quickly turned around and closed the door.
She leaned against the door panel and asked in a low voice: "Brother Patriot, have you stole the panda from the zoo?"
He Yushui and Huang Sen were also shocked. They didn't care about making dumplings and stood up and surrounded them.
While carrying Chichi out of her arms, Li Aiguo explained: "This was given by an old hunter when he was in Sichuan Province. It was called Chichi, and his parents were gone."
The woman's heart was very soft. When she heard about the miserable life experience of Chi Chi, He Yushui couldn't stand it and hugged Chi Chi over.
Huang Sen was also helping with food and hair care.
Chen Xueru took a look at the chewy meal and whispered, "Brother Patriotism, this is a panda, not a dog."
Li Aiguo understood what she meant: "After the New Year, I will go to the zoo to find out if I can send the food there."
At this time, Chi Chi was having fun with He Yushui, and she didn't realize that her dad had decided to send it away.
"It's only a few months since I eat, so I can only eat milk powder." Li Aiguo took out a few cans of milk powder from his bag and told Chen Xueru to take good care of her, so he was about to go out.
Chen Xueru stopped him: "You just came back, why are you leaving again?"
"It's a small matter, it won't take long, so I'll leave me a meal at noon." Li Aiguo put on a canvas bag and pushed his bicycle out of the courtyard.
Professor Hua reminded him several times on the phone that when he returned to the capital, he would definitely send the manuscript as soon as possible.
Li Aiguo also knew the reason why Professor Hua was so anxious.
By verifying the proof process as early as possible, you can invent the paper as soon as possible.
What is the use of geometric conjecture as part of the Poincaré conjecture?
It doesn't seem to be of use either.
If you have to say anything, it proves that the earth is a ball, not a flat, not a donut.
At the same time, the generalized version of the geometric conjecture also proves that no matter how weird the shape of the universe is, it must be composed of eight basic topological shapes.
Unlike practical technologies such as calculators and transistor chips, it seems useless and does not need to be kept confidential at all.
However, it is meaningless to struggle with solving mathematical problems.
The reason why mathematics is fascinating and attracts countless mathematicians to exhaust their efforts is not necessarily how much economic benefits can be obtained by solving a calculation formula, but because it is there.
From the perspective of the development of the entire human civilization, human beings cannot only have the coexistence in front of them, but also the universe and the distance.
However, for Professor Hua, the Institute of Mathematical Computing, and the domestic mathematics community, what is needed even more is the immediate melancholy.
Although the Chinese New Year is coming soon, the Institute of Mathematical Computing is still open its doors as before.
Because Li Aiguo had made an appointment with Professor Hua, he was wearing four bags. He registered at the gate and went in.
Every time I come to the Institute of Mathematical Computing, Li Aiguo has the same feeling. The air here seems to exude the atmosphere of mathematical computing problems.
As I walked along the path and walked past a boiler room, the door suddenly opened.
"I seem to understand! I have to go and ask Professor Hua for advice." Chen Jian pushed open the door and walked out, and walked forward. After Li Aiguo called him twice, Chen Jian stopped.
Compared with a year ago, Chen Jian was much thinner and duller.
He stared at Li Aiguo for a long time before he squeezed out a sentence: "Brothers of Patriotism, do you have a task again? Let me tell you, I will tell you, this time it won't work. I have important work to do."
Li Aiguo wanted to explain, but he became interested when he heard this: "Brother Chen, what new discoveries have you made?"
Chen looked around and looked around, came over mysteriously, lowered his voice: "Do you know 1+1?"
Li Aiguo widened his eyes: "Godbach conjecture? Have you proved it?"
Chen Jian didn't expect that Li Aiguo would understand this, so he waved his hand: "That's not. In fact, I'm still far from 1+1, but I have new ideas about the large even number table as a prime number and a sum of the product of no more than two prime numbers."
The large even number table is the sum of the product of a prime number and a no more than two prime numbers. Isn’t that 1+2? Li Aiguo can understand why Chen’s information is so cautious.
"Have you proved it?" "It's not that easy, it's just an idea. Do you understand the idea? I'm going to see Teacher Hua now, and I won't talk to you." Chen Jian was a little anxious when he mentioned his work.
Li Aiguo took a few quick steps to follow, "I'm going to see Professor Hua too, let's go together."
Chen Jian thought that Li Aiguo went to see Professor Hua because of something on the railway, but he didn't care.
He brought Li Aiguo to Professor Hua's office door and knocked on the door. After a response inside, he pushed open the door.
"Teacher, I have a new idea."
As soon as he entered the door, Chen Jian had to hand over the draft in his hand to Professor Hua.
Professor Hua reached out and took it on the table, looked at Li Aiguo, and stretched out his hand: "You are a patriotic comrade. Professor Qin said on the phone that you are very young, and I thought he was joking. It seems that the younger generation is terrifying."
This is the first time that Li Aiguo has met Professor Hua, a domestic math boss.
Compared with Professor Hua in later newspapers and journals, Professor Hua was younger this year, tall and thin, with a pair of black-framed glasses on his nose, and his eyes were as bright as a torch behind the lenses.
He was wearing a white-washed Navy Zhongshan outfit, with a meticulous collar pressed under the Adam's apple, and his cuffs were worn but neatly rolled up, revealing his hands with distinct joints.
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"Professor Hua, you are the eternal learning object for us younger generations." Li Aiguo stretched out his hands and held Professor Hua's hand tightly: "Although Liang Yuan is good, he is not a hometown where he has lived for a long time, so he will return! In short, in order to decide the truth, we should go back; for the country and nation, we should go back; for the people, we should go back; even for the sake of personal opportunities, we should go back as soon as possible!"
"Professor Hua, your "Open Letter to Persons in the United States" is written so well, which greatly encourages the spirit of our younger generations."
Professor Hua did not expect that Li Aiguo would memorize his article in full and nodded: "It's just some true feelings. But you, without saying a word, actually put a big satellite."
Li Aiguodao: "This is not my credit alone, Professor Qin and others have also played a crucial role."
Professor Hua has a unique personality of a researcher and doesn't like to talk too much. He asked directly: "Have you brought the draft?"
Li Aiguo took out the paper from the canvas bag and handed it over.
Professor Hua took it, sat on the chair, and started to study it carefully.
Chen Jian realized at this time, wasn’t the train driver coming to ask for help from mathematics? Why are there any math papers?
Now Professor Hua is all his energy on the paper, and Chen is a little anxious.
What's going on?
Chen Jian knew Professor Hua's temper and did not dare to come forward to disturb him. He could only stretch his neck and look over.
He probably understood that it was a topology problem, and then, after reading it, he didn't quite understand it.
On the one hand, Professor Hua covered some of the formula with his hands.
On the other hand, he is studying number theory and knows a little about topology, but only knows some basic knowledge.
Just as Chen was even more curious and was about to ask Li Aiguo what he was proving, Professor Hua moved his hand away and revealed the title of the paper.
"On the Poincaré Conjecture Issues in Three-dimensional Conditions"
Poincaré's conjecture? !
Curiosity disappeared instantly.
Another lunatic came.
Since the establishment of the Mathematical Calculation Institute, it will receive public submissions from time to time.
What proved the Goldbach conjecture, the Riemann hypothesis, the Hodge conjecture. Even a while ago, Chen went out and was stopped by a little old man, and the other party came up with the formula for the unified world.
"I'm stupid when I learn patriotism and mathematics"
Although this is not the direction of his research, don't think he knows nothing about the Poincaré conjecture.
For countless years, mathematicians around the world have studied topology, as long as they study topology.
Then anyone succeeded?
No!
If you prove it as a train driver, it is called seeing a ghost!
In his heart, Chen Jian was about to remind Professor Hua not to waste time.
Professor Hua raised his head at this time: "Patriotic, where are you going to publish your paper?"
Li Aiguo nodded: "Journal of Mathematics of the Institute"
Journal of Mathematics is the earliest mathematics journal in China. It was founded in 1936 and mainly publishes excellent and fruitful papers that are original in pure mathematics and applied mathematics.
The current editor-in-chief is Professor Hua.
Although Chen Jian was the editor-in-chief of his later position, he has not been able to publish a heavyweight paper in the Journal of Mathematics. When he heard Li Aiguo's words, he was shocked and was about to remind Professor Hua.
Before he could speak, he saw Professor Hua shook his head: "It's not appropriate"
Chen Jian secretly breathed a sigh of relief, and swallowed the words he said to him.
Professor Hua continued: "Although the Journal of Mathematics is the largest mathematical journal in China, the platform is still too small in the world, which is not conducive to the promotion of modified papers."
This is the first time Li Aiguo has heard of this statement: "Promote thesis?"
Professor Hua also knew that Li Aiguo was not a professional researcher and patiently explained: "If a paper like this is difficult to publish in a journal, it often requires a long peer review process to verify whether the proof process is correct.
For papers involving important conjecture proofs, the review cycle is often relatively long.
Even if the paper passes the review and is published in a journal, it will take a long process to quickly gain recognition from international peers. Sometimes, several international conferences have to be held for discussion.
If your paper is recognized by international peers in a short period of time, it requires an endorsement of a very well-known mathematics journal. ”
Li Aiguo seemed to understand: "What do you mean to submit to foreign journals?"
Professor Hua took out a cigarette from his pocket and handed it to Li Aiguo, handed it to Chen, then lit it himself, and took a sip: "I used to be a researcher at the Princeton Institute of Mathematics. I was a colleague with Mr. Eisenhardt, the editor-in-chief of Mathematics Annual. His main research direction is topology, and he also has in-depth research on the Poincaré conjecture."
"Mathematics Annual": One of the four majors.
Professor Hua is indeed a big shot, and he has worked as a colleague of the editor-in-chief of the Big Four.
Li Aiguo felt a stern and soon woke up: "Professor Hua, if the paper is submitted to a foreign journal, I need to report to the organization first."
Professor Hua also understood the relevant procedures and nodded: "Let's do it like this, put the paper here first, I'll take someone to review it first. If there is a result on your side, I'll contact Mr. Eisenhart."
Professor Hua directly submitted his paper to the Mathematics Annual, which was also to guarantee his academic reputation, so he naturally had to be cautious.
Li Aiguo chatted with Professor Hua for a while, then rode his bicycle to the weather station.
After he left, Professor Hua sat down and picked up the paper again.
Chen Jian came to his senses at this time and said in surprise: "Teacher, is there really no problem with patriotic papers?"
"I just read it briefly. Whether it is the proof idea or Li Aiguoliu's theory, it makes sense. If there is a problem, it is also a trivial problem." Professor Hua held a cigarette and looked up at Chen's information: "Xiao Chen, what's wrong with you?"
"Ah, no." Chen Jian hid the manuscript with his thoughts behind him.
Professor Hua: "Since there is no other job, I will stay and help me review it. The requirements for the Mathematics Annual Journal are very strict, so we cannot make any mistakes."
Chen information: "Ah"
*****
In this year, there was no contact channel at home and abroad, but normal academic exchanges were not interrupted.
In 1956, he participated in the "International Chinese Social History Discussion" in Paris and discussed with European and American scholars on the issue of Chinese historical installment.
The All-China Federation of Natural Science Specialized Society (established in 1950) carried out mutual visits and exchanges with the British Association of Scientists and the French Federation of Scientists.
In 1951, he participated in the 4th Congress of the World Association of Scientists (World Association for Science and Technology).
In fact, in this era of incomplete development, the country needs to achieve good international results and motivate workers and scientific researchers.
but.
Be careful in everything, this is Li Aiguo's principle of doing things.
After Li Aiguo returned to the weather station, the farmer was about to go back from get off work. When he saw him coming, he opened the door again.
"Patriotic, the New Year is coming soon. Your teacher's wife asked you to take your children home to pay New Year's greetings on the third day of junior high school." The farmer sat on a chair, took out a white pack of cigarette from the drawer, and threw it to Li Aiguo.
"Save it for the New Year to smoke."
It is indeed a happy thing to have a big boss as a teacher.
Li Aiguo unceremoniously put the cigarette in his canvas bag, then sat down, and told him about the preparations for submission of papers to foreign journals.
After listening, the farmer lit a cigarette and asked, "This should be Professor Hua's idea?"
Li Aiguo felt that he was caught and was arrested: "Professor Hua made it for my consideration. He just asked for my opinion, and it was mainly the decision I made."
The farmer saw that Li Aiguo was thinking about carrying Professor Hua and smiled and said, "You, you still underestimate you as a teacher. If I were such a person who did not distinguish right from wrong, I would not have let you, a little guy, turn the 221 factory upside down."
Li Aiguo smiled and said, "Teacher, this is indeed my own idea."
He firmly put the responsibility on his head, not only did he not make the farmer angry, but he was a little relieved.
After all, no one likes to deal with people who are two-faced.
The farmer sniffed and said, "I'm going to go to Haizili to have a meeting in the evening. Recently, the above is counting the results of this year. If your paper can be published in a world heavyweight journal, it will be a small result. I believe the above will agree."
Li Aiguo was naturally grateful to the farmer when he saw that the farmer was willing to come forward in person.
"Don't thank you. Come early on the third day of the junior high school to help me cook for ten thousand words of thanks." The farmer said, stood up, sent Li Aiguo out of the office, and went to Haizi himself.
Things were as expected by the farmer. After learning the whole story of the matter, the above gave the green light without hesitation.
He even sent translators from the foreign affairs department to the Institute of Mathematics to assist Professor Hua in his work.
The paper was sent to the other side of the ocean through the port city.
After finishing these things, it was already New Year's Eve. Li Aiguo bought some melon seeds and candy pieces and hummed a small song and returned to Siheyuan.
As soon as I entered the door, I saw Jia Dongxu and the staff of the street office standing at his doorstep.
"Officiale Zhang, Li Aiguo feeds dogs with milk powder!"
(This chapter ends)