Chapter 397

"Graduate student majoring in mathematics?" the young man was stunned for a moment, then shook his head and smiled, "This article is not something that a mere graduate student can read. ”

Cheng Nuo shook his head, "That's not necessarily!"

"Oh?" the young man smiled, looked directly at Cheng Nuo's flat face, and said with a smile, "Then I'll wait and see!"

The young man looked at Cheng Nuo, holding his arms, with a faint disdainful smile on the corner of his mouth, with a hint of please start your performance.

Cheng Nuo ignored the young man, but lowered his head and fell on the middle-aged man who had been sitting beside the young man without saying a word.

Cheng Nuo leaned down slightly and said with a smile, "This article should mainly describe the derivation of the relevant formulas of the complex projective space of algebraic geometry in the space formed by adding infinite points to Euclidean space. Professor Russell, am I right?"

The middle-aged man looked up and asked, "Do you know me?"

Cheng Nuo smiled, "Professor Russell is a big figure in the field of geometry, how can students not know him." I'm currently majoring in geometry, and some of your papers have been read by our teachers!"

Russell didn't expect that someone really knew him, and it seemed that he was still an admirer of him.

He pushed his glasses and smiled politely, "My job as a mathematician is to write better papers to educate the next generation. If you have the chance, I can point you out. Oh, by the way, I take the liberty of asking, who is your teacher, maybe we still know each other. ”

"Oh, the student's teacher is Professor Fresnel. Cheng Nuo said.

Russell's face froze.

His main field of geometry is good, and he is quite well-known in this circle, but compared to Professor Fresnel, it is simply a drop in the bucket, and there is no comparison at all.

Of all the mathematicians still active in geometry today, Professor Fresnel is the first to do so.

And Professor Russell, who was only invited to attend the International Congress of Mathematicians and gave a small lecture with dozens of people, was naturally not qualified to instruct Professor Fresnel's students.

Professor Russell's enthusiasm immediately became enthusiastic, and a kind smile appeared on his face, "Professor Fresnel is my idol, and when I was younger, I had the idea of studying from him, but I didn't get into his eyes. I envy you very much as a student of Professor Fresnel now! When you see Professor Fresnel, you must say hello on my behalf!"

Cheng Nuo nodded with a smile, "Definitely." ”

"Oh, by the way, this is my first class student, Myron, who is now a lecturer in the mathematics department at the University of California. Russell introduced Cheng Nuo to the young man next to him.

Cheng Nuo glanced at Myron with deep eyes and did not speak.

The young Myron smiled and said, "It turns out that everyone is friends. Then this little brother, the wet information in your hand will not pursue the question of the flight attendant. I'll just print another copy when I get off the plane. ”

Cheng Nuo shook his head and shrugged, "That's not necessary, the teacher's article, if I can't complete it, wouldn't my student's work be too unqualified?"

"Do you have a pen?" Cheng Nuo stretched out his hand.

"Oh, there is!" the young man was in a trance, took out a pen from his pocket and handed it to Cheng Nuo.

Cheng Nuo has already read the part of the paper that was soiled by coffee.

After taking the pen, he wrote directly in the place where it was not wet.

[Given the n+1-dimensional complex Euclidean space Cn+1, consider the subset Cn+1\{0}. The equivalence relation is introduced in it as follows: if for the points (z1, z2) in Cn+1\{0},... , zn+1) and (1,2,... , n+1), there is a non-zero complex number ρ such that ......]

[Take out the points (z1, z2,... in the n-dimensional complex projection space CP , zn,1) is the equivalent class representing the elements, and these equivalent classes constitute a subset in CPn, where each point corresponds to a point in C (z1, z2,... , zn), which is a one-to-one correspondence to C, will be seen as equivalent to C, and then ......]

[Let Ui(0≤i≤n) be all the points with coordinates Xi≠0 in PR, then UiR, and U0, U1,... , Un to form an open override of the PR. ...... In the generalization theory, the projective space is also established on the integer ring Z, that is, the projective generalization PZ is established. From this, PX can be created for any generalization X, creating a fiber volume. 】

Putting down the pen, in the shocked eyes of the stewardess, Cheng Nuo put the paper and pen in the young man's hand at the same time.

Cheng Nuo's straight and straight voice stood in front of the young man, giving him a feeling that he needed to look up.

"Ah, that's the missing part of the article. Now, can we let this flight attendant go?" asked Cheng Nuo.

Young Mumu nodded, "Yes, you can ......"

Cheng Nuo shrugged and sat down in his place.

"Thank you, sir, so much just now. The stewardess said to Cheng Nuo in a grateful tone, and her blue eyes were already full of brilliance.

Cheng Nuo waved his hand, "It's just a gesture, besides, they made me sleep just now." ”

Flight Attendant: "......"

It turned out that I didn't want to be a hero to save the beauty, so disappointed......

............

Nothing to say all the way.

After more than four hours of sailing, there were no more accidents.

The plane slowly landed at the airport in Philadelphia, and Cheng Nuo woke up Tan Weiwei, who was dozing, and said in a low voice, "We have arrived." ”

Cheng Nuo pulled two suitcases and Tan Weiwei, who was in a daze, stepped off the plane slightly, and before he took a few steps, a voice came from behind him.

"Student, please wait a minute. ”

Turning his head, it was Professor Russell and his student with a very bad temper.

"Are you two coming to Philadelphia?" Professor Russell asked curiously.

Cheng Nuo smiled, "Didn't I hear that the International Congress of Mathematicians is about to be held?" Come and join in the fun. ”

"And Fresnel taught him?"

"Oh, the teacher won't be here tomorrow. By the way, I forgot to ask, Professor Russell must have been invited to this mathematicians' conference, right?"

"That's nature!" Professor Russell's student spoke before he could speak, his head held high, looking proud, "My teacher not only received an invitation, but was also invited by the IMU to give a lecture on the fifth day of the conference. ”

Cheng Nuo smiled, "If I have the chance, I will definitely go over to support Professor Russell!"

After saying goodbye, Cheng Nuo turned around and left.

Professor Russell stood still and muttered for a few seconds, then turned to the young man and said, "He said he was going to give me a show?"

The young man nodded, "He did say so just now, I think, because of the teacher's reputation, he should still admire you." ”

Russell frowned, "That's not what I'm talking about. ”

"He's just a graduate student, and it's impossible for him to receive an invitation to this international conference of mathematicians, so why did he come and cheer me on?"

"This ......," the young man patted his head, "could it be that we were tricked by him?"

Russell shook his head, "It's not good. ”