universal data

Chapter 394 Arriving in Philadelphia
397 chapter

"A 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 understand."

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

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

The young man looked at Cheng Nuo, folded his arms, and had a slight disdainful smile on his lips, as if please start your performance.

Cheng Nuo ignored the young man, but lowered his head and looked at the middle-aged man who sat beside the young man without saying a word.

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

The middle-aged man raised his head suddenly and asked, "You know me?"

Cheng Nuo smiled, "Professor Russell is a big figure in the field of geometry, how could the students not know him. I am currently focusing on geometry, and the teacher asked us to read some of your papers!"

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 your next generation. If I have a chance, I can give you some pointers. Oh, yes, I would venture to ask, which professor 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 with Professor Fresnel, he is nothing compared to Professor Fresnel, and there is no comparison at all.

Among all the mathematicians who are still active in the academic circle of geometry, Professor Fresnel is the most well-deserved number one.

And a Professor Russell who was only invited to participate in the International Conference of Mathematicians and got into a small lecture with dozens of people is naturally not qualified to give advice to Professor Fresnel's students.

Professor Russell immediately became enthusiastic, with a friendly smile on his face, "Professor Fresnel is my idol. I thought of studying with him when I was young, but I didn't catch his eye. You I am very envious of being Professor Fresnel's student now! When you see Professor Fresnel, be sure to say hello for me!"

Cheng Nuo smiled and nodded, "Definitely."

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

Cheng Nuo gave Myron a deep look, but said nothing.

The young Myron smiled sarcastically, and said with a laugh, "It turns out that we are all friends. Then, little brother, don't go after the stewardess with the wet document in your hand. After getting off the plane I’ll just print another copy.”

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

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

"Oh, yes!" The young man was in a daze, then took out a pen from his pocket and handed it to Cheng Nuo.

Cheng Nuo had already read the part of the paper that was stained by coffee.

Taking the pen, he wrote directly on the spot that was not wet.

[Given an n+1-dimensional complex Euclidean space Cn+1, consider the subset Cn+1\{0}.The equivalence relation is introduced as follows: If there is a non-zero complex number ρ for the points (z1, z0, ..., zn+1) and (w2, w1, ..., wn+1) in Cn+2\{1}, make...]

[In the n-dimensional complex projective space CP, the equivalence classes represented by points (z1, z2, ..., zn, 1) are taken out. These equivalence classes constitute a subset of CPn, and each point corresponds to point (z1, z2, ..., zn), this is a one-to-one correspondence to C. It will be regarded as equivalent to C, and then ...]

[Let Ui (0≤i≤n) be all points in PR whose coordinates Xi≠0, then UiR, and U0, U1,..., Un constitute an open cover of PR. ...to establish the n-dimensional projective space PK on K. In the scheme theory, the projective space is also established on the integer ring Z, that is, the projective scheme PZ is established.Therefore, PX can be established for any profile X, and fiber volumes can be created. 】

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

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

"Well, this is the missing part of the article. Now, can we let this flight attendant go?" Cheng Nuo asked.

The young man nodded awkwardly, "Yes, yes..."

Cheng Nuo shrugged, returned to his seat and sat down.

"Sir, thank you so much just now." The stewardess said to Cheng Nuo in a grateful tone, her blue eyes already sparkling.

Cheng Nuo waved his hand, "It's just a small effort, besides, they just made me sleep because of the noise."

Airline stewardess:"……"

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

…………

Speechless all the way.

After more than four hours of voyage, there was no accident at all.

The plane landed slowly at the airport in Philadelphia. Cheng Nuo woke up the dozing Tan Weiwei, and whispered, "We're here."

Cheng Nuo took the two suitcases and Tan Weiwei, who was in a dazed state, and stepped off the plane. Before he took a few steps, a voice came from behind him.

"Student, please wait a moment."

Turning around, it was Professor Russell and his very bad-tempered student.

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

Cheng Nuo smiled and said, "Didn't you hear that the International Congress of Mathematicians will be held soon? Come and join in the fun."

"Then Fresnel taught him?"

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

"That's natural!" Before Professor Russell could speak, his student spoke first, holding his head up, with a proud look, "My teacher not only received the invitation, but was also invited by IMU to speak at the conference. On the fifth day there is a lecture."

Cheng Nuo smiled, "If there's a chance, I'll definitely go over to cheer Professor Russell!"

After saying goodbye, Cheng Nuo turned and left.

Professor Russell stood there and pondered for a few seconds, then turned to the young man and said, "He said he was going to cheer me up?"

The young man nodded, "That's indeed what he said just now. I think it's 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 the invitation letter of the International Conference of Mathematicians. How could he come over and cheer me up?"

"This..." The young man slapped his head, "Could it be that we were played by him?"

Russell shook his head, "It's hard to say."

(End of this chapter)