In the middle of the night, a bright moon hung high on the branches.

After hanging up the video call, Xu Chuan got up and stretched, stretched his posture, went to the bathroom to wash his face, and sat back at the desk.

The proof of the polynomial decomposition puzzle of the big positive integer factor is undoubtedly one of the top conjectures in the field of mathematics.

In the P=NP? problem, the mathematical community and the computer community have done a lot of work on it for hundreds of years, but there has been no major breakthrough.

And today, in the hands of that senior sister, he saw a brand new answer, which was undoubtedly satisfying.

However, for Xu Chuan, what he cares about is not only the proof of the polynomial decomposition problem of the positive integer factor, but also the method used to solve the problem, or the mathematical tools created by Liu Jiaxin!

That kind of targeted decomposition and screening method, he always felt that the use was far more than that.

After sorting aside the scattered papers and used manuscript paper on the table, Xu Chuan took a stack of new manuscript paper that had not been used from the upper right corner of the desk.

The ballpoint pen with half of the ink left in his right hand, staring at the white manuscript paper, he pondered for a moment before writing down the first line of formula.

【ζ(p， s)=ζ(s)· (1-p^s)=∑p|n· 1/n^s】

This is one of the main results of the research of the mathematician Professor Schultz, who won the Fields Medal in 2018.

ζ It is a continuous function on Zp, and its value at a negative integer can be represented by the interpolation of a first polynomial of Zp[T], which mainly reflects the analytic nature of the corresponding number field.

In addition, it is an important module of Iwasawa theory, which plays an important role in the study of number theory and arithmetic algebraic geometry.

Today, however, he is not studying Iwasawa theory and algebraic geometry. Instead, we found a way to incorporate the analytic properties of this function into the mathematical tools that Jiaxin Liu used to solve the polynomial decomposition problem of the big positive integer factor.

He vaguely felt that if he could do this, maybe he could move a little bit closer to the Riemann conjecture!

That's what keeps him up late, so even if he has to talk to the old man about the future of technology development tomorrow, he can't care so much.

After all, it's a pity to have inspiration and ideas that you can't catch in time.

The lines of calculations were completed on the white manuscript paper, and with a little bit of freshness and a little coolness sent in by the breeze outside the window, Xu Chuan kept thinking about ways to integrate the two tools.

He was glad that he hadn't drunk much wine tonight, or rather last night's celebration party, and that he was still sober in his mind.

Otherwise, you will definitely miss out on this great opportunity.

I don't know how long it has been, just as Xu Chuan was staring at the equation on the manuscript paper and thinking, the mobile phone on the table rang with a dingdong.

Subconsciously frowning, he reached out and took the phone without raising his head, unlocked the screen and glanced at it.

It was a life assistant who sent him a message.

"Professor, although I don't want to disturb your research, it's getting late now, and I still have a trip to Chang'an Avenue tomorrow morning, and I hope you will rest soon."

Seeing the information on his mobile phone, Xu Chuan was stunned for a moment, looked at the time on the screen, and unconsciously it was almost two o'clock in the morning.

"Got it."

With two taps of his fingers on the screen, he replied to a message and began to organize the papers on his desk.

If it was a normal time, he didn't care about staying up late or even all night or anything, but today is really not good.

After all, I have to go to the small island in the North Sea tomorrow morning.

Fortunately, he has sorted out some general preliminary ideas, and he doesn't have to worry about it running away when he gets his hands on it.

The next day, around 9 a.m. Following the guards, Xu Chuan once again came to the small island in Beihai on the north side of Chang'an Avenue. Walking through the tree-lined path, the familiar two-story building came into his eyes again.

As soon as I stepped into the hall, a laughing voice sounded in my ears.

"Academician Xu is here, have you had breakfast?" The old man who had been waiting here for a long time got up to greet him with a smile when he saw Xu Chuan's figure.

Xu Chuan greeted respectfully and responded with a smile: "I've eaten it." ”

After smiling and greeting each other, he and the old man took the opportunity to sit down on either side of the hospitality chairs in the hall.

But as soon as his butt landed on the soft chair, Xu Chuan couldn't help but yawn.

Although he finished his studies in mathematics before 2 a.m., it was clear that he couldn't sleep right away after seeing a brilliant paper and getting some new mathematical inspiration.

It's like an ordinary person playing a game or watching a movie, but when you are having fun or seeing something exciting, you suddenly interrupt you and tell you to go back to sleep, and you definitely can't sleep.

He was the same, tossing and turning in bed until three o'clock or even almost four o'clock before falling asleep.

So much so that after getting up at eight o'clock this morning, I took a cold shower to make myself feel a little refreshed, which will be next to the soft cushion, although the spirit is still bearable, but the body is reflexively yawning.

"Did you stay up late last night?" Sitting aside, looking at Xu Chuan, who yawned and was a little depressed, the old man asked with concern.

Xu Chuan nodded, and did not deny it: "A little math problem, I will study it." ”

The old man said: "I'll find you a guest room first, you can sleep here for a while to make up for sleep, and the aerospace matter is not in a hurry, let's just talk in the afternoon." ”

Hearing this, Xu Chuan hurriedly said: "It's okay, it's okay, don't be so troublesome, I'll just make up for it in the afternoon." Besides, I've only been up for a short time, and I can't sleep. ”

The old man shook his head, didn't persuade again, and said with a smile: "You, you still have to pay more attention to your body, stay up less late, and rest more." You're still young, and there's still a long time to come, so you can take your time researching anything. ”

Xu Chuan nodded and said with a smile: "I'll pay attention." ”

The old man smiled, knowing that he probably didn't take this concern to heart.

However, this is what they arranged for the life assistants and medical team to do in the past, and they can't help this kind of thing, but I believe that their people will help him solve some of the physical hidden dangers caused by staying up late to the greatest extent.

After saying a few words of concern, the old man turned to the topic: "I want you to come here this time, mainly because I want to talk to you about some things about the development of the aerospace field, including the lunar biosphere project and the construction of the lunar base that you wrote about in your letter before. ”

"You say." Xu Chuan quickly replied.

The old man sorted out his thoughts for a moment and slowly spoke: "Under your leadership, the manned spaceflight and lunar landing projects have achieved perfect success, and the emergence of the Xinghai space shuttle has made major changes in the future aerospace field."

"There are also differences of opinion at the top level on the construction of the lunar biosphere project and the lunar scientific research base, especially the former."

"While it's certainly worth investing in, it's about our space strategy, whether it's open to scholars in other countries, or whether it's hard to assess the risks. It just so happens that you are here today, and I would like to ask you what you think. ”

Speaking of this, he looked at Xu Chuan solemnly and continued to speak: "Do you think it is more appropriate to cooperate in the future?" ”

Hearing the old man's inquiry, Xu Chuan said with a smile: "Regarding this project, I have read the previous research and discussion report, and the structure on the report has been quite perfect, and I don't need to add anything." Follow that, and that's good. ”

The 'large-scale lunar integrated base project' will be divided into two parts: the 'lunar biosphere project' and the 'lunar outpost scientific research station', with the former being for international cooperation and the latter being completed by China alone.

There was no doubt that this was the most appropriate course of action at the moment, and he could not think of a better solution.

Moreover, he himself is not a scholar in the field of engineering design, and it is enough to leave this kind of engineering field to the experts of the Academy of Sciences and the Academy of Engineering.

On the other side, the old man nodded and said, "The idea of the high-level side is similar to yours, the lunar biosphere project can indeed face the whole world and allow countries and international scholars from all over the world to participate." ”

Xu Chuan said with a smile: "In fact, in terms of technology, the technical content of the lunar biosphere project is not very high, but it costs a lot of money, and the results can be said to be relatively public." ”

"On the one hand, I suggest opening up to the international community because I can take this opportunity to attract more international talents, such as scholars in astronomy, physics, biology and other fields to do research in China, and even settle down, immigrate, and so on."

"On the other hand, getting other countries and regions involved can save us more money and spend it where it's more valuable."

Opening up the lunar biosphere project to the world is something he has thought about for a long time.

Although it is inevitable that some intermediaries or intelligence personnel from other countries will be involved in this process, the biosphere project itself is a project that is not very secret.

As for the controllable nuclear fusion reactor that provides energy for the biosphere project, it must be put in its own lunar scientific research base, and there is no need to worry about too many leaks.

In addition, although biosphere engineering itself does not have many top-notch technologies, China itself has not studied and developed the history of biosphere engineering, and there are not even many scholars in this field.

On the contrary, although the United States Biosphere 2 ultimately failed, it also cultivated a group of corresponding outstanding scholars and experts around the world.

Including the biosphere temperature control, humidity control, sealing, ecological cycle and other fields of technology, these are actually quite good.

The United States' aerospace technology is powerful, in fact, it has a certain relationship with Biosphere 2.

For example, this time Artemis plans to launch a life support unit, and many of the technologies in it are further optimized from Biosphere 2.

With the help of this lunar biosphere project, it is actually quite a good choice to attract these experts and scholars and obtain some ecological recycling technology.

Overall, the advantages of involving international scholars and countries around the world in the lunar biosphere project outweigh the disadvantages.

On the other side, the old man nodded lightly and agreed with Xu Chuan's statement.

Talent attraction has always been a weaker link in China, and their own brain drain is more serious than attracting scholars from other countries.

It would also be worthwhile to take this opportunity to change some of the international perceptions of them.

Of course, for the country as a whole, what is more important is the expansion of the influence of the Open Lunar Biosphere Project in the international arena.

Aerospace is undoubtedly the development trend of the future, and it is undoubtedly their strategic deployment policy to gain a firm foothold in this field in advance and maintain a leading position.

After chatting with the old man for a while about things in the aerospace field, Xu Chuan sorted out the thoughts in his mind and spoke again.

"On the basis of the perfect realization of the manned lunar landing project, we have now seen the great potential of the space shuttle Xinghai, which can replace traditional chemical fuel rockets to carry out various space activities."

"I think we have the ability and the need to look further into deep space."

"That is: start the manned boarding project!"

Coming here today, although we talked more about the development of the moon, for Xu Chuan, the purpose of his visit this time was not the moon.

He does care about things on the moon, but to be honest, since the manned landing on the moon was completed and the astronauts of Huaguo imprinted their footprints on that land, his expectations for the moon have been lowered by several levels.

In addition, the discovery of lunar ice and lunar metal deposits further deepened his understanding of the moon and unveiled the veil of mystery.

For now, unless he can go to the moon himself, he will only have a little interest in the moon left.

As for the construction of the biosphere project and the lunar scientific research base, although there are difficulties, it does not require his own efforts to do it.

In contrast, his gaze had fallen on the brownish-red planet that was even more distant.

Listening to Xu Chuan's plan, the old man's expression was slightly moved.

He couldn't help but recall the plan that the young man had talked to him about here two years ago when controlled nuclear fusion technology was realized, even in his opinion, was so grand that it could be said that it could not be found in the entire history of mankind.

Whether it was the other elders who knew about the plan, or the academicians of the Academy of Sciences, experts, etc., almost everyone thought that it was an impossible goal.

It will not be possible for at least 50 years, or even in the 21st century.

But with the development of the past two years, he is now shocked to find that the project planned by this young man in front of him seems to be being realized little by little.

From miniaturized and controllable fusion reactors to aerospace engines; to the space shuttle Xinghai, to manned spaceflight, to the manned moon landing.

The development of the entire aerospace field is developing by leaps and bounds at a speed that is almost unimaginable to ordinary people.

Just like the breakthrough of controllable nuclear fusion technology, it has amazingly achieved one stage after another, solved one problem after another, and finally completed fusion ignition, opening a new era.

(End of chapter)