Before returning to the college entrance examination, I became popular in the science circle

Chapter 55 Number Theory
"Whenever you want to go out and relax, let the teacher know in advance, and the teacher will arrange a small tour guide for you to accompany you around Shangjing, and also have a casual meal at the teacher's house!" Thinking of Wu Tong who had just come to Shangjing and was unfamiliar with the place. , Li Yisheng specially asked to invite.

Children treat her as their own teacher. As a teacher, he must be considerate of his children.You can't stay on campus all the time. You can change your mind by going out for a walk.

"There is a monkey in the teacher's house, and he can't stay at home during the holidays." It just happened to let the brat have more contact with Wu Tong, and also get some of his talent.

I think he has a master's degree from a Beijing university, a doctorate from Stanford in M ​​country, and his wife has a doctorate in economics from Stanford. Not only are they geniuses, they are also academic leaders.Just such a son, but he didn't inherit many of their excellent genes.

The world of mathematics guesses that he hasn't solved it yet, and there is a brat who can't handle it at home. This feeling sometimes really collapses when I think about it, life is hard!
Only when I see these talented children do I feel that there is still hope in this world!

"I've been tired all day, go to bed early, call me in time if you have anything to do, and see you later!" Winter had not gone far, and it was getting dark early, Li Yisheng left the dormitory building after explaining to Wu Tong.

After seeing off Professor Li, Wu Tong called home and chatted for a while, while sorting his luggage.

Teacher Jin Yu pointed out Wu Tong's precautions for independent living, from eating, to wearing, to traveling...with the child not in front of her eyes, she wished she could tell Wu Tong everything she could think of.

In the memory of her previous life, she felt that she was nagging endlessly, but now listening to it in a different situation, Wu Tong felt that it couldn't be more heart-warming.

When he first arrived, Wu Tong didn't bother much, and after familiarizing himself with the environment, he took a rest.

Early the next morning, Wu Tong followed his usual practice and started morning exercises on his small balcony before the sun rose.

The location of her dormitory is good, the small balcony happens to be facing the sun, it will not be blocked by the dormitory building in front, the view is wide, and you can also touch the rising sun.

After these few months of rest, she has a deep understanding of the mystery and benefits of Chaoyang Purple Qi Technique.Her physique is getting better and better, her complexion is healthy from the inside out, and she is full of energy. No matter how hard she tries, she never loses power. Her hair is still black, thick, and as smooth as silk...
Incidentally, her strength is also continuously increasing.Wu Tong has not measured it specifically, but with her current sensitivity to numbers, a weight of one hundred catties is not a heavy burden in her hands.

She had quietly tried it, and she could pick up the sleeping Jin Xin with one hand without any difficulty.Jin Xin is 1.8 meters tall and weighs basically [-]. It must be said that this is a magical discovery and a hidden skill that is very useful for self-protection.

At six o'clock, the sun rose completely. Wu Tong washed himself and changed his clothes for going out. He went to the cafeteria to have breakfast first.Wu Tong was not familiar with Beijing University's cuisine, so he ordered two steamed buns and a cup of grain and soy milk. This should be the most unmistakable basic combination.

After breakfast, Wu Tong went directly to the Beijing University Library. Yesterday, Teacher Li told her the specific location and gave her a borrowing card. She could choose to study in the library or borrow books back to her dormitory.

Walking on the Jingdao Road in winter, Wu Tong didn't have much of a poet's literary spirit, so he browsed the surrounding environment casually, mostly to recognize the way and get familiar with the environment.

The route explained by Teacher Li was very clear. Wu Tong followed the road signs and stepped into the Peking University Library of Nottingham University. The size, facilities, and quantity and quality of books at Peking University Library were eye-opening for Wu Tong, who came from a small and barren county.

There is a rich collection of books, classified into categories, clear instructions, and a special self-study area.

With rich resources and comfortable conditions, Wu Tong found the mathematics classification area, where there are comprehensive research textbooks, various mathematics professional books, and various manuscripts. She looked for the target books, sat down next to her, and She started her study and couldn't be more happy to belong!
For Wu Tong, who has gradually become obsessed with mathematics, this place is like a fairy treasure.

Wu Tong officially started her study life at Peking University. She lived in the library, cafeteria and dormitory without leaving the campus.

The administrators of the Peking University library are all familiar with Wu Tong.

She doesn't necessarily go to the library every day, but every time she doesn't go to the library early, look for the target books, study and study in the self-study area until noon, borrow books, go back to the dormitory after dinner and continue her study.That is to study and study in the dormitory first, thoroughly study the books or papers in hand, then go to the library to borrow new books, and study in the self-study area until the library is closed.

Wu Tong is obsessed with concentration and has no distractions from the outside world.Usually, the administrator reminds me that the closing time has arrived.

The librarians on duty couldn't help sighing. They have been librarians for so many years. It is really rare to see such obsessive study as Wu Tong in Beijing University, which is full of talents.

And any teacher or student who is in such an almost crazy state will not become famous unless he is a dead learner.And where they were, it was Beijing University, a place where geniuses gathered, and studying to death was a rare state here.

Time passed quietly, and Wu Tong's daily study and life cycled step by step. She was like a sponge drawing water, eagerly absorbing these rich knowledge resources.Her mathematical knowledge tree is also expanding rapidly.

Wu Tong's eyes became deeper and deeper during the research. It was the light of knowledge.

It is Podoniac's conjecture. For all natural numbers k, there are infinitely many prime number pairs (p, p + 2k). When k = 1, it is the twin prime number conjecture.

Wu Tong wrote down a few lines of formulas on the draft paper,
Let y be the yth prime number, P(y) be the value of the yth prime number, and P(y)^2 be the square of the prime number.It means that the prime number less than or equal to this prime number can directly determine the range of prime numbers.

P(y)^2-P(y-1)^2P(y)=11,

P(y)^2=121L(5)=(1/2)*(2/3)*(4/5)*(6/7)*(10/11)=16/77U(5)=(1/2)*(1/3)*(3/5)*(5/7)*(9/11)=27/154P(5)^2-P(5-1)^2=72
The world of mathematics is vast, and she is doing in-depth research, and the first thing she comes into contact with is number theory.

Number theory is a very magical section, so many people are fascinated by it and do not want to wake up.

Its threshold is very low, and many formulas and theorems can be understood by junior high school students. I don’t know how many folk scientists have been born. The letters written to the Chinese Academy of Sciences about the famous Goldbach’s conjecture every year can almost drown the Chinese Academy of Sciences.

People in the civil sciences all feel that they have proved the world's difficult problems and conjectures, but their talents are not being appreciated!But it is a pity that their knowledge cannot even pass the entrance examination of the Chinese Academy of Sciences.

It can be seen that number theory is an area that desperately needs talents. The reality is cruel. Without a solid foundation and outstanding talents, it is basically impossible to achieve anything in this area!

(End of this chapter)