Chapter 402

At the end of the academic report, Professor Bill on the podium took a few slips of paper with questions handed over from the front row and answered them one by one.

Cheng Nuo stood in the corner, although he understood some questions, he still listened very carefully.

"It's not my turn yet!" After listening to it for a while, seeing that his question hadn't yet arrived, Cheng Nuo muttered in a low voice.

A mathematician sitting in the last row, very close to Cheng Nuo, seemed to hear Cheng Nuo's self-talk, shook his head and smiled, and beckoned to Cheng Nuo, "Waiter, come here!"

The first sound, although Cheng Nuo heard someone calling the waiter, he hadn't yet substituted into the role, and he didn't react to it.

"Waiter, come here!"

It wasn't until the mathematician called for the second time that Cheng Nuo was stunned for a moment, and walked up to the mathematician with a waiter-style signature smile on his face, "Sir, you called me?"

The mathematician nodded, looked at it and asked, "You're a waiter at this hotel, aren't you?"

"Yes, sir, I've only been working in the hotel for a few days, so if there's anything inappropriate, please Haihan. Cheng Nuo estimated that the mathematician should have seen himself sitting in his seat listening to the lecture, so he said.

"I see you were listening carefully to Mr. Bill's academic report just now?" asked the mathematician with a smile, "How much did you understand?"

Cheng Nuo waved his hand, "Mr. said it was funny, I just admired a Filipino Award winner like Mr. Bill, and I just listened to it and joined in the fun, how could I understand much." ”

"It's just more than 90 percent understood. Cheng Nuo added in his heart.

The mathematician looked like this and said with a smile, "Although I don't understand, it's good to feel the atmosphere." ”

Obviously, he subconsciously understood the "I didn't understand much" in Cheng Nuo's words as "I didn't understand it at all".

He waved his hand at Cheng Nuo, "Please help me get a drink." ”

Although he was reluctant in his heart, because he didn't know when Professor Bill on the stage would answer his question, in order to avoid exposure, he still smiled and nodded, "Okay, sir, wait a minute, right away." ”

After saying this, Cheng Nuomai hurriedly walked out of the back door of the auditorium.

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

In the auditorium, Professor Bill, who was standing on the stage, had just finished answering the previous question, and after a brief sip of water, he picked up the next note.

Professor Bill glanced at it and smiled, "That's an interesting question. ”

Then, he picked up the microphone and explained to the audience, "I found an interesting question, you can listen to it." ”

"The question is: in the case of the Lie group analytic mapping that fluctuates irregularly at the zero point, does the affine function of the DL cluster?"

"To be able to ask this question shows that I have almost understood what I have just said. The reason why I say this question is interesting, in fact, those who notice it will find that I have mentioned this question in one stroke when I just talked about it. ”

"We have been doing this research, but so far there is no conclusive conclusion, so I can only give you an answer that I understand. ”

Cheng Nuo also walked in from the back door with a drink at this time, and when he saw that his problem had been mentioned, he immediately stopped and stopped to listen.

Professor Beale went on to say, "It is well known that Lie groups are real manifolds or complex manifolds with a group structure, and that the addition and inverse operations in the group are analytic mappings in the cluster. If we let a k be an algebraic closed field, and let A^n be the n-dimensional affine space over k. ”

From this, it can be easily concluded that f∈k[X1,X2,X3...... Xn], Z(S)={x∈A^n|f(x)=0 for all f∈S}. ”

"If S exists such that V∈A^n satisfies V=Z(S), a non-null algebraic set V is considered irreducible, so that I(V) is the ideal of all functions with zero values on V, I(V)={f∈k[x1,x2,x3,...... xn]|f(x)=0 for an arbitrary affine algebraic set V, whose coordinate ring is the quotient of the polynomial pair above ideal. ”

"So, here's the problem......"

Professor Beale seems to be enthusiastic about this issue. The first few questions answered were all about one or two minutes, and this question has been explained for more than five minutes before it has the momentum of stopping.

"That's what I understand about this issue, of course, what I'm saying is not necessarily right, and if we have different opinions, we can discuss them privately. ”

"Finally, I would like to take the liberty of asking, I don't know who in this room asked this question, can you let me know about it?" Professor Beale held the note aloft and looked into the audience with an inquiring gaze.

One second, two seconds, three seconds......

The atmosphere fell into an eerie silence, and more than ten seconds passed, and no one in the audience raised their hands.

The mathematician, who sat in the last row, looked at the half-slip of paper that Professor Beale held up, and for some reason, there was a sense of familiarity.

Professor Bill's face was also a little embarrassed, and he sneered, "Since this colleague is reluctant to show up, let's talk in private, and talk in private......"

After speaking, he picked up the next note and answered the question.

In the audience, the hundreds of mathematicians who came to listen to the lecture were also discussing.

"What's the matter with that person, who gave up such a good opportunity to get in touch with Professor Bill, what do you think?!" The mathematician in the last row muttered without deliberately lowering his voice.

Cheng Nuo smiled bitterly. He didn't expect that Professor Beale would take it so seriously just by asking a question.

He also wanted to touch the big guy in the front row, but reality didn't allow it, so he had to give up.

Let's just keep this a secret.

"Sir, you want a drink. Cheng Nuo said to the mathematician who was still muttering.

The mathematician took the drink handed by Cheng Nuo and said dissatisfiedly, "So long." ”

Cheng Nuo said apologetically, "When I first came in, I heard Professor Bill talking about a very interesting question, so I stopped and listened for a while. ”

"Interesting?" the mathematician snorted, "to you laymen, I'm afraid it's just interesting." The meaning of this question is not so simple. ”

Cheng Nuo stood aside with his hands down and did not speak.

The mathematician waved his hand, "Alright." Go down and do your job. ”

"Then sir, I'll go to work first, and then you can speak if you need anything. The mathematician didn't say anything, and Cheng Nuo was ready to leave.

The one-hour academic report is coming to an end, and he has heard everything he wants to hear and ask, and he needs to find a place to digest it, and then rush to the next lecture.

Cheng Nuo was just about to take a step when he heard the mathematician's voice behind him again, "Your shoelaces are open." ”

Cheng Nuo looked down, "Oh, thank you." ”

Cheng Nuo squatted down to tie his shoelaces and walked quickly out of the auditorium, not noticing that half of the paper had fallen out of his pocket.

The mathematician saw this scene and just wanted to remind Cheng Nuo, but he seemed to think of something, and his eyes widened unconsciously.

If he remembered correctly, the half of the paper dropped by the waiter matched the tear on the piece of paper that Professor Bill had shown them on the stage.

Should be...... The same piece of paper.

Doesn't that mean......