Chapter 399

At the end of the academic report of chapter 402, Professor bill on the stage took over several pieces of paper with questions 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 him for a while, Cheng Nuo murmured in a low voice.

A mathematician sitting in the last row, very close to Cheng Nuo, seemed to hear Cheng Nuo's soliloquy. He shook his head and laughed, and waved to Cheng Nuo, "waiter, come here for a minute."

The first sound, although Cheng Nuo heard someone call the waiter, but he has not yet put into the role, did not react to it is himself.

"Waiter, come here for a minute!"

Until the mathematician called for the second time, Cheng Nuo was stunned for a second time. With a waiter like smile on his face, he went to the mathematician and said, "Sir, do you call me?"

You look at the hotel and ask, "is this a mathematician?"

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

"I think you were listening carefully to Mr. Bill's academic report just now?" The mathematician asked with a smile, "how much do you understand?"

Cheng Nuo waved his hand. "Sir, I'm just admiring a Fei prize winner like Mr. bill. After listening to this, I can't understand how much."

"Only understand more than 90 percent." Cheng Nuo added in his heart.

Mathematician a pair of true such expression, smile way, "although do not understand, but feel this kind of atmosphere is also very good."

Obviously, he interpreted Cheng Nuo's "not understood much" and his subconscious understanding was "not understood at all".

He waved to Cheng Nuo, "please get me a drink."

Although he was reluctant, because he didn't know when Professor bill would answer his question, he still nodded with a smile to avoid exposure. "OK, sir, wait a moment, now."

After saying this, Cheng nuomi hurried out of the back door of the auditorium.

…………

In the auditorium, Professor bill, who was standing on the stage, had just finished answering the last question and simply took a drink of water, then he picked up the next note.

Professor bill glanced and said with a smile, "that's a little interesting."

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

"The problem is: in the case that the analytic map of Lie group fluctuates irregularly at the zero point, the k-value function of affine DL family?"

"If I can ask this question, I understand almost everything I have just said. Why do I say this topic is interesting? In fact, those who have noticed it will find that I have already mentioned this problem just now. "

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

Cheng Nuo also came in from the back door with a drink. Seeing that he had already talked about his problem, he immediately stopped to listen.

Professor Bill went on to say, "it is well known that lie groups are real or complex manifolds with group structure, and the addition and inverse operations in groups are analytic mappings in the manifold. If we let K be an algebraically closed field and a ^ n be an n-dimensional affine space on K

"From this we can easily conclude that f ∈ K [x1, X2, X3 Xn], Z (s) = {x ∈ a ^ n | f (x) = 0 for all f ∈ s}. "

If there is s such that V ∈ a ^ n satisfies v = Z (s), a nonempty algebraic set V is considered irreducible, such that I (V) is the ideal of all functions with zero value on V, I (V) = {f ∈ K [x1, X2, X3 Xn] | f (x) = 0 for any affine algebra set V, its coordinate ring is the quotient of polynomial to the above ideal

"So, here comes the question..."

Professor bill seems to be very enthusiastic about this issue. The previous questions were all finished in one or two minutes, and the problem had been explained for more than five minutes before it began to stop.

"What I understand about this issue is these things. Of course, what I have said is not necessarily correct. If there are different opinions, we can discuss them in private."

"Finally, I'd like to take the liberty to ask who in this room raised this question. May I know it?" Professor bill held up the note and looked inquisitively down the stage.

One second, two seconds, three seconds

The atmosphere fell into a strange silence, more than ten seconds later, no one raised his hand.

The mathematician in the last row looked at the half note that Professor bill had raised. Somehow, he had a familiar feeling.

Professor Bill's face was also a little embarrassed, and he said with a smile, "since this colleague doesn't want to show up, let's talk about it in private, in private..."Then he picked up the next note to answer the question.

Under the stage, the hundreds of mathematicians who came to attend the lecture also talked about it in succession.

"What's the matter with that man? How could he give up such a good chance to get in touch with Professor bill?" The mathematician in the last row did not mutter.

Cheng Nuo smiles bitterly. He didn't expect that Professor bill would pay so much attention to just asking a question.

He also wants to touch the big man in the front row, but the reality does not allow him to do so.

Take this as a secret.

"Your drink, sir." Cheng Nuo said to the mathematician who was still muttering.

The mathematician took the drink from Nuo and said, "so long."

Cheng Nuo said apologetically, "when I first came in, I heard Professor bill talking about a very interesting question, so I stopped to listen for a while."

"Interesting?" The mathematician hummed, "to you laymen, I'm afraid it's just fun. The meaning of this problem is not so simple. "

Cheng Nuo stood aside and did not speak.

The mathematician waved, "OK. Go down and do your work. "

"Sir, I'll go to work first. If you have any need, please speak." Mathematicians do not say, Cheng Nuo is also ready to go.

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

As soon as Cheng Nuo was about to take a step, he heard the voice of the mathematician behind him again, "your shoelaces are open."

Cheng Nuo looked down and said, "Oh, thank you."

Cheng Nuo crouched down, tied his shoelaces, and walked away from the auditorium without noticing that half a piece of paper fell out of his pocket.

Mathematician saw this scene, just want to remind Cheng Nuo, but it seems to think of something, eyes unconsciously open.

If he remembers correctly, the half piece of paper dropped by the waiter exactly matches the pattern of the tear on the piece of paper that Professor bill showed them on stage.

It should be The same piece of paper.

Well, doesn't it mean

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