Scholar’s Advanced Technological System

At 8:30 in the morning, the position in the lecture hall is almost full.

Lu Zhou found a position in the back row and sat down in a low-key manner.

At 8:50, the lecture hall was full, and some people moved from the next classroom to the stool and sat on the aisle to listen.

Not even the school, even the people in the next few colleges have come to class.

It can be seen that the popularity of Professor Ren Changming is indeed not small.

At 9:00, the lecture officially began. Looking at the old gentleman on the podium, Lu Zhou looked more familiar and always felt that there was a side. But when I was too far apart, and maybe I changed my clothes, he really couldn’t remember where I had seen it.

PPT began to show, sitting next to the big school girl, finally stopped talking to the roommate on the other side, reaching for the notes and pen.

At this time, she saw the side of the boat, suddenly squatted.

Looking at a few more eyes, she whispered: "Classmate, may you ask Lu Zhou?"

Lu Zhou squatted and nodded: "Yes."

The girl’s eyes lit up and her voice whispered with a slight excitement: “You... are you a one-three-year-old Lu Zhou?”

"Yes... is there anything?"

"No, nothing." The elementary school girl shook her head quickly.

Nothing, what do you call me?

Lu Zhou was speechless, opened a small book and started taking notes.

"..."

Lu Zhou: "..."

I don't know if it is his illusion. I always feel that the two big ones next to the school are secretly watching him. They are also excited to whisper and whisper.

Lu Zhou sighed in his heart.

Is this the trouble of being a celebrity?

feel……

not bad?

Fortunately, they did not talk too long, and soon the topic went to other places.

Lu Zhou automatically shields the outside world from interference and concentrates on the lecture itself.

Just as Professor Ren just finished the opening remarks, he did not miss a lot of content.

"...we all know that prime numbers are natural numbers with only two factors. You may pass the first hundred prime numbers when you are in junior high school. The twin prime numbers refer to prime pairs with a difference of 2, ie p And p+2 are both prime pairs, such as 3 and 5, 5 and 7, 11 and 13, 17 and 19, etc. As the number becomes larger, the number of twins that can be observed is less and less."

"There are 8 twin prime pairs within 100, and there are only 2 pairs between 501 and 600. As the prime numbers increase, the next prime should be further and further away from the previous prime, but is as famous as the Goldbach conjecture. An important conjecture asserts that there are an infinite number of prime numbers, which differ only by 2, such as 3 and 5, 5 and 7, and even this..."

Having said that, Professor Ren wrote a line of numbers on the blackboard.

[2003663613×2195000-1 and 2003663613×2195000+1]

Looking back, he smiled and continued.

"There are an infinite number of primes with a difference of 2, which is the famous twin prime guess."

So far, Professor Ren has said some shallow knowledge, even if Lu Zhou, who has not studied the twin prime numbers, can easily follow.

The same is true for other freshmen, whether they are mathematics or non-mathematical amateurs, listening carefully with interest.

But soon, the content of the lecture began to deepen.

"...the prime number conjecture has always been a problem that plagues the mathematics world. However, last year, there was a breakthrough in the research on this issue." Professor Professor smiled and turned to the next page of the PPT, continuing to say "Chinese-American mathematician, Mr. Zhang Yitang proved a weak form of twin prime numbers, and found that there are infinite numbers of infinite differences of less than 70 million. Thus, on the road of the important problem of twin prime guesses, a breakthrough from scratch has been achieved. ""

Having said that, Professor Ren pushed the glasses and on the blackboard, the board of directors proved the process of Mr. Zhang.

[Define theta(n)=lnn if n is a prime number; define theta(n)=0 if n is a composite number. Take the function lambda(n)=..., define S1(x)=...,S2(x)=...]

[Verification S2? (log3x)S1>0...]

[...]

Looking at the ever-increasing formula on the blackboard, the students who were able to understand before were instantly forced.

For example, sitting in the primary school girl next to Lu Zhou, I look at "Who am I?" "Where am I?" "I am dictating?" It’s like I’m just missing a second, but I feel like I’m missing the whole world...

Lu Zhou is able to follow the ideas of the professor.

To put it simply, the Mr. Zhang skillfully selected a lambda function, successfully proved that k>=3.5*10^6, and concluded that S2?(log3x)S1>0 was established.

In this way, by listing the first 3.5*10^6 prime numbers as acceptable sets, it can be further proved that there are infinite numbers of infinite differences of less than 70 million.

"According to the proof method left by Mr. Zhang, as of now, Mr. Zhang's k>=3.5*10^6 has been narrowed down to k>=50. That is, 70 million this The number has been reduced to 246. The rest of the work needs to be completed by the latecomers,"

Having said that, Professor Ren smiled and threw the chalk head on the desk. "Perhaps, the great person who completed this historic work will appear among the people present."

"I am looking forward to that day!"

Hey!

Applause thunder.

The audience under the audience applauded enthusiastically.

No matter what you don't understand, it's right to applaud!

Of course, there are still many people who understand it, and the face has a thoughtful expression.

For example, Lu Zhou.

The twin prime guess is just an introduction. This semi-scientific lecture is not an academic report. The focus is on stimulating students' passion for mathematics.

Professor Ren talked about the Goldbach conjecture from the twin prime conjecture, and from the Goldbach conjecture, he talked about the current development of domestic number theory and some relatively advanced research results.

I have to say that this old professor does have some ink in his stomach.

I can talk about some embarrassing things, even for beginners.

However, the content of the second half of the lecture is much less than the content of the first half of the lecture, so that Lu Zhou did not listen carefully. At this moment, his mind is still stuck in the proof of the twin prime guess.

Looking back at the last discovery in the library, staring at the blackboard on the blackboard, Lu Zhou brows tightly, and feels something in the dark, but always in the moment I want to catch it, let it from the fingers slip……

The lecture is coming to an end soon.

The students of the student union took the list to the first row and began to count the signs.

When Lu Zhou signed it, he couldn’t wait to rush to the library, but he was stopped by the big primary school girl who was sitting next to him.

"Schoolmaster, senior, wait a minute, can you add your buckle?"

I didn't want to waste time. Lu Zhou immediately wrote a series of clasps on the draft paper she handed, and then did not give her the opportunity to continue talking. In the sight of the schoolmate, she quickly walked away.

However, as soon as he went out, he was stopped by a person.

This person is not someone else. He is the professor who just gave a lecture.

Judging from the smile on the old gentleman's face, he should wait for him for a while at the door of the lecture hall.

"Oh, boy, let's meet again."

Lu Zhou:? ? ?

Have we seen it?

It seems that I have seen it somewhere...

Without waiting for Lu Zhou to react, the old gentleman continued to speak.

"Young man, are you interested in developing on the rocket?"

Lu Zhou, who was still thinking about the problem of prime numbers, was shocked by this sudden problem.

Nima, is this to let yourself be an astronaut?

How can this be done!

Lu Zhou smiled: "Hey, Professor, I don't want to go to heaven."