Lu Chengchuan was not too surprised when he heard Shang Xiping asking him to read the paper on the other end of the phone.
Although everyone has different majors, the development of modern mathematics is increasingly leaning towards application rather than theory. The forefront of mathematical applications lies in the computer field. So they occasionally exchange interesting papers in their respective fields with each other.
He ordered himself a cup of milk tea and then opened the email from Shang Xiping.
The moment he saw the title, Lu Chengchuan couldn't help but raise his eyebrows. Why would Shang Xiping pay attention to this direction?
In the past few years, the singularity elimination of algebraic clusters was still a popular direction. But over the years, there has been no breakthrough in the field of positive characteristics, and the popularity has slowly dropped.
But the fact that the heat has dropped does not mean that this issue is no longer important. On the contrary, they have even turned this problem into a language, and when studying algebra-related problems, it will be directly quoted and implicitly demonstrated.
Once someone proves it, many predictions and conjectures in the field of algebra will directly become definite concepts!
"It's interesting." Lu Chengchuan laughed twice, opened the academic search engine, and searched for the title of the paper.
The popularity of this field has indeed dropped, and almost no new papers have been published in heavyweight journals in the past ten years.
However, on the preprint platform, someone uploaded a related paper on all Buyygovin this morning.
The preprint platform is a paper sharing platform that was born out of the high threshold and long time required for journal review. Although anyone can post flaws, the quality of papers varies, and because there is no peer review, the possibility of paper fraud increases.
But the advantages are also obvious.
In the Internet era, uploading electronic documents can not only effectively leave traces but also prove the date of publication. Its extremely fast peer response is even more pleasing to researchers. Almost all academic researchers are happy to share their articles on it.
With such obvious advantages, the all-Buygovin paper has not aroused much discussion so far. I think the content level should be relatively average.
Lu Chengchuan closed the browser and opened the paper document: "The topic is so big, let me see how much you weigh..."
He glanced at the abstract in front and went straight to the argument process of the main text.
Singularity elimination in the positive eigendomain is not a formula, but a problem. Therefore, no matter how fancy the preface is, it is not worth wasting time. Only the proof process is the most worthwhile part.
The first part of the argument alone is six pages long.
Lu Chengchuan crossed his legs and calculated silently while watching.
After looking at it, he casually pulled the notebook aside, took out a pen and started to check the calculations. After immersed himself in calculations for more than ten minutes, he frowned: "Introducing the ideal index, this idea is interesting."
He put down the pen and looked back at the introduction to this part in the preface. He was so fascinated that when the delivery man brought the milk tea, he didn't pick it up. Instead, he waved his hand and said, "Put it on the table."
The delivery man in the yellow rabbit hat didn't dare to disturb him when he looked at the screen and spread out his notes very seriously. After putting down the milk tea, she closed the door for him.
Lu Chengchuan didn't notice the delivery boy's movements. After reading the graded algebra quoted in the preface, he started checking the calculation again.
Nearly half an hour later, he put down his pen and raised his head again: "Introducing infinitely near singular points, and including the lowest singular points through a limited sequence of local smooth scaling..."
In the computer department office, Shang Xiping had given up thinking on his own.
He is engaged in applied computers, why should he have trouble with classical algebra! This kind of problem is left to people like Lu Chengchuan who are engaged in pure mathematics. He just needs to wait for the result.
"Professor Lu is in the Department of Mathematics, far away from us. Let's just wait." Shang Xiping glanced at the clock on the wall, "If there is no news for a while, don't worry. After all, school has started, and they There’s a lot going on in the mathematics department.”
Jing Changjia sat there, looking gentle and calm: "I'm not in a hurry. There should be results in half a month."
"Half a month should..."
"Old Shang!" The voice came before anyone arrived, "Where did you get that paper from!"
Lu Chengchuan roared and rushed into Shang Xiping's office, completely missing Jing Changjia sitting aside.
"I searched and it was an original paper! Where did you get this paper? Is it from our college?"
Shang Xiping smiled and said, "Hey, you, why can't you be the one who wrote it?"
"Bullshit! You're really good at applications. You can do pure mathematics while you're at it." Lu Chengchuan waved his hand, "Is he a new teacher from our school? Or someone's PhD?"
Shang Xiping raised his chin: "You came quickly, and he hasn't left yet. He's right there."
Lu Chengchuan turned around happily, but what he saw was a face that could be called childish to him.
"Hello, Professor Lu, I'm Jing Changjia." Jing Changjia smiled and stretched out his hand.
"The waves behind the Yangtze River push the waves ahead.". Lu Chengchuan held his hand and said with emotion, "Mathematics is indeed the field of genius as always. Let me tell you the truth, I haven't read the calculation steps at the end of your paper. But your thinking in front of it is very clever, and I want to share it with you. Let’s discuss one or two.”
"old road……"
Lu Chengchuan turned a deaf ear and only took out the printed paper from the document bag: "Here, starting from the lowest and strangest point..."
Jing Changjia tilted his head and looked at it, and picked up the pen in the folder: "That's it, the ideal index E = (J, b). After introducing the hierarchical algebra of finite generation, all allowable explosion sequence can be obtained The union of central images.”
Lu Chengchuan looked at the formula Jing Changjia wrote down on the side of the paper without hesitation, and the more he looked at it, the more delighted he became.
"Old man Lu?"
Professor Lu waved his hand impatiently, and immediately said to Jing Changjia: "No wonder you came to the conclusion that E=Ei, at this step it is allowed and very clear."
After he finished speaking, he raised his head and looked at Jing Changjia carefully: "Good boy, are you from our hospital?"
"I'm from the computer science department," Jing Changjia said.
Lu Chengchuan was stunned when he heard this: "Department of Computer Science? How can you be a Department of Computer Science?"
The old man with gray hair looked at Jing Changjia in shock, and then glanced at Shang Xiping.
"I'm telling you, kid, don't look at the outside world who say computers are the direction of the future. In fact, the blue ocean for the development of this industry has long passed. Even if you want to make money after graduation, you will just burn the midnight oil when you go to a big factory. It's not as good as Come to Mathematical Institute to engage in academics."
"Lu Chengchuan!" Shang Xiping squeezed in forcefully, "You're here to steal my students, right?"
Lu Chengchuan pushed him away with an "ouch, ouch": "As a teacher, you should try your best to discover the talents of your students. Don't make trouble here."
After he pushed Shang Xiping aside, he looked at Jing Changjia and said earnestly: "I'm telling you, little classmate, you should come to the mathematics department. Let's start from basic mathematics and work our way to applications. Think about it, if you were in In the Department of Computer Science, doing neurobiology and intelligent algorithms are all things you should do. But it’s different if you’re in the Department of Mathematics.”
He slapped Jing Changjia hard: "They are engaged in chaos algorithm and turbulence intelligent control. When haven't they cooperated with the Institute of Mathematics? Then you will be an external expert and earn more than them. The teacher also has several projects in his hands. Group, you can join at any time if you want.”
After he finished talking to himself, he still felt that it was not safe. He grabbed Jing Changjia's hand and said, "In this way, you can write a department transfer application when you get back, and your teacher and I will approve it immediately. Which teacher do you want to study with?" Continue to do research? If there are no more places, I will give special approval."
"I haven't thought about it," Jing Changjia said.
"Haven't you thought about it? That's right... Now that you've reached this level, do you want to do independent research?" Lu Chengchuan asked, "Maybe you can graduate after publishing the article, and then get a Ph.D. under the name of Academician Chen of our academy. In this way, when you publish articles, there will be a newsletter for academicians, and the review of those journals will be faster."
Lu Chengchuan has been teaching and doing research for half his life, but he is very aware of the twists and turns involved in journal review.
When he mentioned this, he asked: "Has the paper been submitted? Which one?"
Jing Changjia nodded and said, "Submitted for the annual mathematics report."
"The Mathematics Annual Report... is good, the choice is good. This kind of results should be published in the Mathematics Annual Report. The review is just too slow. If you vote for them, you will have to wait."
The annual report of mathematics is a core journal at the top of the pyramid. Their classmate Jing Changjia is a newcomer. The group of journal editors can spend several years reviewing this article.
Lu Chengchuan thought to himself, nodded and shook his head, smacked his lips for a long time, and then said: "Let's make arrangements for the department transfer first. How much research are you doing now?"
"Maybe it's too early to study for a Ph.D.," Jing Changjia said with a smile, "Professor Lu, I'm only a sophomore."
"Oh, I'm already a sophomore."
Lu Chengchuan blurted out, and then he was stunned: "Sophomore? Only sophomore?! Shang Xiping, you are robbing me of a student from the Department of Mathematics!"
…
After finalizing the transfer, the two watched Jing Changjia leave the office building. Shang Xiping said cheerfully: "How about this student? Isn't he a good student?"
"He's a good seedling." Lu Chengchuan looked at the walking figure and sighed in his heart, "Mathematics is really cruel and ruthless."
"No more ruthless than you, Professor Lu." Shang Xiping snorted, "I didn't even ask my classmates for their opinions, and just took them away from our promising computer and sent them to your mathematics department."
Lu Chengchuan shook his head cheerfully: "If he doesn't want to, can I force him to do it? For basic mathematics, talent and inspiration are not enough, but also need enough love. In such a cutting-edge direction, he can only Only if you love it enough can you see it.”
After he finished speaking, he put his hands behind his back and raised his chin: "I robbed the child after careful consideration!"
After that, he walked away like a victorious rooster.
Halfway through, he suddenly remembered something, and the old man burst out with pride: "Oops, my milk tea!"
He hurriedly touched his phone to confirm the location of the milk tea, but as soon as he took it out, it rang loudly.
Lu Chengchuan looked at the name displayed on the screen and ended the call with a smile on his face: "Wilson, it must be late at night over there, why are you calling me at this time? Is someone looking for you for peer review?"
"No, no. Lu, I'm on my way to the airport. I'll land in Yujing at about four o'clock in the morning." Professor Wilson was particularly anxious. "I want to meet one of your scholars named Wujiu tomorrow, is that okay?"
Lu Chengchuan was stunned when he heard this: "Who?"
Wujiu? 59?
"He's an algebra scholar from your Department of Mathematics." Professor Wilson said anxiously, "I have some questions I want to ask him."
Lu Chengchuan thought hard and couldn't think of anyone else in the mathematics department of Yujing University whom Wilson could ask for advice in algebra.
In algebra, Wilson is already one of the most powerful mathematicians alive. He has specialized in studying the Hodge conjecture in recent years and has made many achievements.
Although the mathematics department of Yujing University was one of the best, Lu Chengchuan had to admit that there was no teacher in the school worthy of Wilson's special trip.
"Did you remember the name wrong? There is no teacher named 59 in our school." Lu Chengchuan sighed.
"Impossible!" Wilson said resolutely, "My Long Xia language is not that bad. His signature is Wujiu! Just wait, I will take a look at his acknowledgment."
"Okay, take your time and watch. I'll arrange for someone to pick you up." Lu Chengchuan said, "You'd better remember his school correctly. If this 59 is from next door, then you can sleep in the airport."
