Great Country Academician

On the desk, Xu Chuan frowned staring at the numerous encrypted messages.

On the surface, these problems are indeed irregular. Even if various types of functions are arranged according to time, there is no problem. The mathematical laws hidden behind it are like order in chaos, invisible .

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

If it were really that easy, it wouldn't have been resolved until 17 years in my previous life.

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

There are still people who have won top mathematics awards such as the Wolf Prize in Mathematics and the Shiingshen Chern Prize in Mathematics.

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

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

"Separate the two first, and then 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 jammed paper from the base transcoding one by one open.

The two are mixed together, and it is indeed impossible to analyze more things.

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

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

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

This is not very difficult for him, but it is troublesome.

One is that there are many problems and the project volume 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 a corner and kept splitting up groups of questions. By the time his stomach growled with hunger, it was completely dark outside.

Shaking his head, Xu Chuan stood up and moved his body after feeling a little pain in his stomach from being hungry. Outside the window, the campus of Sun Moon University was brightly lit.

"Let's go have a meal first."

After rubbing his stomach, Xu Chuan tidied up the manuscript paper on the table and put it in the drawer.

In six or seven hours in one afternoon, he probably solved about one-fifth of the total number of problems at hand, 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 will encounter some mathematical problems that he does not involve in deep fields.

On the other hand, he still needs to spend some time sorting out the core of solving the Dirichlet function by the simplification method.

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

Coming down from the sixth floor, Xu Chuan walked on the campus of Sun Moon University.

The study atmosphere of top universities is still quite strong. Even at eight or nine o'clock in the evening, there are still people in the library, and there are students walking around from time to time.

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

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

Rather than dealing with things in a large empty classroom, it is better to work in your own room.

Although he quite enjoyed being alone, the room was too big, which made people feel lonely.

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

The room was temporarily remodeled, but the facilities inside are complete, there is a bathroom and a bathing place, but there is no TV on the wall, but a computer instead.

Although the environment may not be as good as a hotel, Xu Chuan does not have any requirements for where to live. A bed to sleep, a bathroom and a place to bathe are enough.

After taking a comfortable bath, Xu Chuan dragged the chair to the table and began to sort out the core ideas of solving the Dirichlet function by the simplified method.

After the verification has been completed and several Dirichlet function problems have been solved before and after using this method, it is very easy to sort out the core ideas.

At least for him it is.

After pondering for a while and building up his thoughts, Xu Chuan began to write.

[A simplified way of finding the Dirichlet function! 】

The Dirichlet function is a function defined on the range of real numbers with a discontinuous range.

Its image takes the Y axis as the axis of symmetry, and it is an even function. It is discontinuous everywhere, and the limit does not exist everywhere, so it cannot be integrated by Riemann.

This is a measurable function that is discontinuous everywhere, has a period, and has no minimum positive period

When f(x)=xD(x), Dirichlet functions can be used to construct single-point functions, so Dirichlet functions can also be used to construct multi-point functions.

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

‘mx˙˙+cx˙+kx=0’, thus, the above equation can be further expressed as x˙˙+2ax+wx=0˙

To sum up, bringing the variation of the damped free vibration equation into the equation A*cos(phi)- c/q = L can transform the Dirichlet function into the integral of the Dirichlet function.

Starting from the properties of the Dirichlet function, then introducing the damped free vibration equation, and then using the two calculation formulas of the critical calculation and the linear independent special solution in the damped free vibration equation, Xu Chuan wrote very quickly.

Tonight's paper was not only for the mathematics experts in the Information Security Department, but also the original copy of the paper for journal submission later.

Of course, if you want to submit a paper, the paper must be refined again. What he is writing now is just the core idea of ​​the simplified method to solve the Dirichlet function.

When submitting to a journal, you need to include more descriptions.

In one night, Xu Chuan had already written out the core idea of ​​solving the Dirichlet function by the simplification method. For a scientific researcher, this efficiency is simply terrifying.

Normally, the emergence of any new mathematical method requires a period of polishing, ranging from a few days to a few months, and sometimes it may not come out even after half a year.

To be able to sort out one's own thoughts and write them out perfectly in one night is simply not a son of man.

Xu Chuan also felt incredible about his horrible work efficiency, but after thinking about it, he thought it was normal.

The vigorous energy brought by the young body, the quick and flexible brain, the large amount of knowledge carried by the rebirth, and the sensitivity to scientific research have made the seemingly impossible possible.