On the desk, Xu Chuan stared at the multitude of encrypted messages and frowned.

On the surface, these problems are indeed irregular, and the various types of functions are arranged according to time before and after, and the hidden mathematical laws behind them are like order in chaos, and they are not visible.

Of course, Xu Chuan didn't expect to find clues at a glance.

If it were really that easy, it wouldn't have been solved in 17 years in the previous life.

Although there is a lack of truly top mathematicians in China, and no one has won the Fields Medal for the time being, there is no shortage of world-class mathematicians.

The Wolf Prize in Mathematics and the Chern Prize in Mathematics have won top mathematics awards.

It's just that there are too many classifications and knowledge contained in the discipline of mathematics, and the achievements of domestic mathematicians are not in functions, and most of the top mathematicians are famous for geometry and calculus.

......

"It's really troublesome to mix functions and base conversions, and you can't see anything at all."

"Separate the two and see if you can find anything."

Staring at the math problems on the table, Xu Chuan muttered to himself, got up and found the staff standing guard outside the door, asked for a pen and paper, and began to separate the math problems on the cardboard from the base system conversion one by one.

The two are mixed together, and it really can't be analyzed much more.

When a mathematical problem is intertwined with other problems, if you want to analyze the mathematical laws in the problem, the best way is to disassemble and restore it, so that the mathematical problem is exposed.

This was one of the methods he used in his previous life to prove the existence of the Young-Mills theory and the problem of the quality gap.

The black signature pen in his hand sketched out the mathematical symbols on the white manuscript paper, and Xu Chuan separated the mathematical problems and base system conversion in these problems one by one.

It wasn't very difficult for him, but it was troublesome.

First, the number of problems is very large, and the amount of work is quite huge.

The second is that the difficulty of these problems is not low, and even he needs a certain amount of time to solve them.

He didn't eat lunch or dinner, he huddled in the corner and kept splitting up groups of questions, and by the time he was grumbling with hunger, it was already completely dark outside.

After shaking his head and feeling a little pain in his stomach, Xu Chuan stood up and moved his body, and outside the window, the campus of Sun Moon University was brightly lit.

"Let's go have a meal first."

Touching his stomach, Xu Chuan cleaned up the manuscript paper on the table and put it in the drawer.

In six or seven hours in the afternoon, he probably unraveled about one-fifth of the total number of problems in his hands, and the rest would take about two to three days.

On the one hand, the difficulty of these problems is indeed quite high, and sometimes he encounters some mathematical problems that he does not cover deeply.

On the other hand, he has to take some time to sort out the core of the simplified solution of the Dirichlet function.

This is the main reason why he was pulled over by Zhang Weiping this time.

......

Coming down from the sixth floor, Xu Chuan walked around the campus of Riyue University.

The learning atmosphere at the top universities is still quite strong, and even at eight or nine o'clock in the evening, the library is still full of people, and students walk around from time to time.

After finding a canteen that was still open and eating something casually, Xu Chuan returned to the information building.

At this point, there was no one in the math office, and the empty room was a little silent, and he didn't stay long, and after taking some drafts, he dragged his luggage to the ninth floor, and found the room where he slept at night.

Instead of working in a large, empty teaching room, it's better to work in your own room.

Although he enjoys being alone, the room is too big and can make people feel lonely.

9027, Xu Chuan glanced at the card hanging on the door, and swiped the door with the access card.

The room was temporarily remodeled, but it was very well equipped, with a bathroom and a place to shower, but there was no TV on the wall, instead of a computer.

Although the environment may not be as good as the hotel, Xu Chuan does not have any requirements for a place to live, it is enough to have a bed to sleep, a bathroom and a bath.

.......

After taking a comfortable shower, Xu Chuan dragged the chair to the table and began to sort out the core idea of simplifying the Dirichlet function.

After you've done the validation and solved a few Dirichlet problems before and after using this method, it's easy to sort out the core idea.

At least yes for him.

After pondering for a while and constructing his thoughts, Xu Chuan started writing.

[A simplified way of finding the Dirichlet function!] 】

A Dirichlet function is a function defined on a range of real numbers with discontinuous ranges.

Its image is a double function with the Y axis as the axis of symmetry, it is discontinuous everywhere, the limit does not exist everywhere, and there is no Riemann integral.

This is a measurable function that is discontinuous everywhere, with periods and no minimum positive periods......

When f(x)=xD(x), the Dirichlet function can be used to construct a single-point function, and therefore, the Dirichlet function can also be used to construct a multipoint function......

...... On this basis, the damped free vibration equation x = exp(-at)*A*cos(bt + phi).....

.....'mx ̇ ̇+cx ̇+kx=0', the above equation can be further expressed as x ̇ ̇+2ax+w²x=0 ̇......

......

In summary, the variation of the damped free vibration equation is brought into the equation A*cos(phi)- c/q = L.... , you can convert the Dirichlet function into an integral of the Dirichlet function.

......

Starting from the properties of the Dirichlet function, to introducing the damped free vibration equation, and then to using the two calculation formulas of the damped free vibration equation, the calculation critical and the linear independent special solution, Xu Chuan's writing speed is very fast.

Tonight's paper is not only for those mathematicians in the Department of Information Security, but also for the original paper submitted to the journal later.

Of course, if he was to submit a manuscript, the paper would definitely have to be refined, and what he is writing now is just the core idea of simplifying the Dirichlet function.

When submitting a manuscript to a journal, there are more things to be written about.

......

In one night, Xu Chuan had already written out the core idea of simplifying the Dirichlet function, which is terrifying for a scientific researcher.

Normally, the emergence of any new mathematical method has to go through a period of polishing, as short as a few days, as long as a few months, and sometimes even for more than half a year.

In one night, you can sort out your own thoughts and write them perfectly, which is simply inappropriate.

Xu Chuan also felt quite incredible about his terrifying work efficiency, but he felt normal when he thought about it.

The energetic energy of a young body, a quick and flexible brain, the vast amount of knowledge carried by rebirth, and the sensitivity to scientific research make this seemingly impossible possible.

......