Zhang Jiping frowned slightly.

To be honest, if possible, the Department of Mathematics at YSU is actually more willing to compete for the Shing-tung Yau Mathematics Research Center, because Shing-tung Yau is the world's top mathematician. He is the winner of the Fields Medal and proved the Calabi conjecture.

He is the founder of the subject of geometric analysis, such as the mass conjecture, which makes his status in mathematics very transcendent and famous at home and abroad. It can be said that the Harvard Department of Mathematics has reached the world-class level precisely because of him.

Although the Department of Mathematics at Yanda is the king in China, it is only second-rate in the world of mathematics and is still far from the world's first-class level. If it can reach cooperation with Qiu Chengtong, then there is no doubt that the Department of Mathematics at Yanda will

Becoming stronger.

But in recent years, because of Qiu Chengtong's student Tian Gang, the two sides have had many wars of words, so they can be said to have deep grudges. It is for this reason that Shuimu University took advantage of the situation and quickly reached an agreement with Qiu Chengtong. Now it is time to make it official.

Announced to the public.

Speaking of Qiutian's war of words, it would take three days and three nights to talk about it, and no one knows the truth except the person involved.

However, as a professor of the Department of Mathematics at Yanda, Zhang Jiping knew that when the Shing-tung Yau Mathematics Center was established at Shuimu University, the Department of Mathematics at Shuimu, which was currently weak, would undergo great development. In addition, Shuimu University could also recruit

With the best students in the country, it is conceivable that within ten years, the Shuimu Mathematics Department will challenge the Mathematics Department of Yanda.

To be honest, it is not that the Mathematics Department of Yanda has not thought of countermeasures. For example, it is best to introduce one of the world's top mathematicians to set up a mathematics research center at Yanda, or even work directly in the Mathematics Department of Yanda.

However, the contacts during this period were not ideal. Although the Mathematics Department of Yanda is the best in the country, it is actually only second-rate in the world. The world's top mathematicians are all in the world's first-class universities.

These world-renowned universities treat them like treasures, and the world's top mathematicians don't even bother to go to the Department of Mathematics at Yanda. They think that the research atmosphere in the Department of Mathematics at Yanda is not good. If they don't concentrate on research, they will always do things that are not available.

, formed cliques, and appeared to be a mess.

Zhang Jiping sighed in his heart. Every family has its own sutras that are difficult to recite. Even though Yanda University is famous in China, only Shuimu University is a competitor in the whole country. But in fact, there are also hidden worries internally. Some people are making trouble, which is just like the same thing.

Like a piece of mouse droppings falling into a pot of soup, it brings disaster to a good pot of soup.

...

The test questions started quickly.

Unfortunately, 10% of the students have fallen ill and are unable to take the test, which shows the importance of having a good body.

The exam lasted for four days in total. Three questions were asked every day, all scheduled in the morning, lasting four and a half hours in total. In the afternoon, you could study by yourself or attend lectures. There were no hard and fast rules in this regard. As for the evening, you were completely free.

The time is arranged by the students themselves.

Liu Yichen just went to listen to some lectures and studied by himself in the evening, which was also the choice of most students. Being able to participate in the first round of training, he has a high degree of self-discipline and his love for learning is unquestionable. Otherwise, he would not

It is impossible to qualify for the first round of training.

Students can discuss a certain math problem among themselves.

Liu Yichen is like a dry sponge, constantly absorbing the moisture of knowledge. He always consults professors every day and asks them questions he encounters that he does not understand. When he gets answers, Liu Yichen often feels enlightened.

His mathematics level is also constantly improving.

The professors in the first round of training were also the most familiar with Liu Yichen. As the saying goes, there is friendship when there are contacts. Friendships are built through contacts, so Liu Yichen has more QQ friends and more address books on his mobile phone.

Several people.

The first round of training was very tight. The four lectures and lectures were all given by well-known mathematicians. None of the students wanted to miss the lectures and lectures. As mathematics enthusiasts, they eagerly

I hope to be exposed to higher levels of mathematical knowledge and higher wisdom, and the mathematical wisdom displayed by these mathematicians is often the most fascinating.

Liu Yichen didn't even have a report meeting. Although he didn't understand some parts, it didn't stop him from absorbing knowledge and making himself stronger.

Finally, the first round of training came to a close. Who will enter the second round of training has become the focus. Some people know it well and know that they will definitely not be selected. Instead, they have a stable mentality and perfectly adhere to the principle of 'participation is the most important'.

in principle.

Many people are full of expectations. Although it is only the first round of training, they all feel that they have made progress in mathematics. They are eager to participate in the second round of training to further improve their mathematical abilities.

If they miss this opportunity, they will have to wait until they enter college before they can learn new knowledge. Not everyone is like Liu Yichen, who realizes early and buys college mathematics textbooks.

When the list for the second round of training was announced, those who made the list were very happy, while those who did not make the list looked frustrated.

Liu Yichen saw his name appearing at the first place on the list and showed a faint smile. It was obvious that he ranked second in terms of the test results of this first round of training.

"Ding~~" Just as the closing ceremony was over, the metallic voice of the system sounded in my mind, "Congratulations to the host, the math level has been raised from lv8 to lv9, the comprehensive evaluation level is s, and the host will be rewarded with a paper proving Sitapan's conjecture!"

In an instant, there were many things in Liu Yichen's mind, and a mysterious and mysterious feeling emerged spontaneously, which surprised him.

What is this Sitapan conjecture?

Liu Yichen returned to his dormitory and began to search for information on Sitapan's conjecture.

"What an unpopular, unpopular mathematical conjecture!" Liu Yichen muttered to himself.

Yes, the Sitapan conjecture is not one of those popular mathematical conjectures with high research value. Not many mathematicians have studied it. It is a rather unpopular and partial mathematical conjecture. It cannot be called a world-class mathematical conjecture.

Sitapan's conjecture is a conjecture about the strength of the proof of Ramsey's two-coloring theorem in the field of inverse mathematics proposed by the British mathematical logician Sitapan in the 1990s. In combinatorial mathematics, Ramsey's theorem is to solve'

To find such a minimum number n, so that among n people there must be k people who know each other or l people who do not know each other', use the mathematical formula to express Ramsey's two coloring theorem, that is, r (3, 3) = 6.

Sitapan proposed a conjecture in the 1990s, which was to study the strength of the proof theory of Ramsay's two-coloring theorem in inverse mathematics. It has been more than ten years since this conjecture was put forward.

According to the paper proving Sitapan's conjecture given by the system, it actually gives a negative answer to this unresolved open question, thus completely solving Sitapan's conjecture. At this point, that is to say, through proof, Sitapan is proved

The conjecture is not established, but falsified!

Liu Yichen muttered to himself that he could understand all the papers, unlike the paper on the proof of Poincaré's conjecture that he was curious about before. The result was like reading a wordless book. He was completely confused. He even said that most of the symbols in it meant to read.

not understand.

By the time Liu Yichen completely understood the proof paper of Sitapan's conjecture, it was already early in the morning. Liu Yichen went to bed and went to bed. Although the first round of training had ended and others had already started to return, Liu Yichen had no intention of leaving Jiangcheng today.

He planned to spend two days in Jiangcheng. After finally coming to Jiangcheng, Liu Yichen still wanted to take a tour of this very special city.

In the afternoon, Liu Yichen left the First Middle School Affiliated to East China Normal University and checked into a hotel. During the day, Liu Yichen went out to visit Jiangcheng. He went to the Yellow Crane Tower and lined up to enter the tower one after another, looking at the different

Liu Yichen was very moved by the shape of the Yellow Crane Tower in historical times, and then he realized that the Yellow Crane Tower had been destroyed in wars many times. The Yellow Crane Tower that can be seen now was actually rebuilt in 1985.

Standing on the Yellow Crane Tower, watching the rolling Yangtze River flowing eastward from its feet, although it was rebuilt in 1985, the Yellow Crane Tower still seems to have that kind of historical heritage. Famous poets from all over the ages left their impressions in the Yellow Crane Tower.

The poems make people feel awe-inspiring.

The first of the three famous towers in the south of the Yangtze River, the Yellow Crane Tower is well-deserved.

He also went to the Jingchu Provincial Museum and looked at the bells of Zeng Hou Yi, which once caused a sensation in the domestic archaeological community. This set of bells dates from the early Warring States Period. In 1978, it was unearthed from the tomb of Zeng Hou Yi in Suixian County, Jingchu. The bell frame is 748 centimeters long and 265 meters high.

Centimeter, a complete set of sixty-five pieces, divided into three layers and eight groups, hung on a curved copper-wood bell frame. The largest bell is 152.3 centimeters high and weighs 203.6 kilograms.

It is hard to imagine that China could produce such a set of musical instruments in more than 2,000 years.

Of course, when you come to Jiangcheng, you must go to the "Yue King Goujian Sword". This sword was unearthed from Tomb No. 1 of Wangshan in Jiangling, Jingchu in 1965. It is 55.7 cm long and 4.6 cm wide. The middle ridge of the sword body is ribbed and decorated with black diamond patterns.

.There is a bird seal inscription near the grid on the front: "King Goujian of Yue, he made his own sword." The sword grid is inlaid with blue glass on the front and turquoise on the back.

Although I just looked at it, according to the introduction, this sword has been used for more than two thousand years and is still extremely sharp and can blow and break hair.

Of course, as a self-proclaimed 'foodie', he would not miss Hubu Alley and Qiaokou Food Street. After spending more than two days visiting, he was still unsatisfied and there were still many places he had not visited. No wonder some people said that they wanted to have a good trip in Jiangcheng.

, it takes ten days and a half anyway.

However, Liu Yichen was still taking the 11 o'clock flight from Jiangcheng to Rongcheng. When he arrived in Rongcheng, it was already two o'clock in the morning. He took the airport shuttle directly and stayed at the airport hotel for one night.
Chapter completed!