Chapter 400

Chapter 403

none of the speakers who can be invited by the International Mathematical Union are certainly mediocre. Moreover, most of the contents described in the academic reports belong to the frontier direction of the field.

In the outside world, apart from the four-year International Congress of mathematicians, I am afraid there is no opportunity to listen to several cutting-edge academic research in more than ten mathematical fields.

Just after listening to Professor Bill's lecture, Cheng Nuo has gained a lot.

Listening to a big man's speech can be more than Cheng Nuo's research in a week.

Cheng Nuo naturally cherished this opportunity.

From this meeting place to that meeting place, I was very busy.

He is now like a sponge, constantly absorbing the knowledge in the ocean and enriching himself.

Because of the different directions that Cheng and Tan Wei are involved in, Tan Wei is currently focusing on the field of number theory. Therefore, most of the lectures given by the big men in the field of number theory have been arranged relatively loosely.

In addition to listening to lectures in the direction of number theory, Cheng also plans to listen to more than ten reports in other 45 fields. Therefore, at night, Cheng Nuo is tired and has a round with Tan Weiwei in the room.

"Can you spell that?" Tan slightly holding a cup of juice, asked with a smile.

Cheng Nuo sat down on the sofa, "it's a rare chance. It's impossible if you don't spell it!"

Tan Wei opens a mouth to ask a way, "how did you harvest?"

"It's a lot of money." Cheng Nuo nodded, "I feel that the harvest in this day is more than that of a high-end project!"

Cheng Nuo is telling the truth.

At the International Congress of mathematicians, what Cheng Nuo heard and learned every day was not comparable to that of Professor Fresnel in a month's work.

Here, there are no less than ten people on the same level as Professor Fresnel.

The International Conference of mathematicians will be held for ten days. Cheng believes that after this baptism, his mathematics level will be improved to a higher level.

Unfortunately, the Mathematics Conference lasts only ten days. If it were a year and a half

Well, even if it really lasts for a year and a half, Cheng Nuo's promotion is limited.

Even at the current intensity, Cheng still has to digest it after listening to an academic report.

After a brief chat with Tan Weiwei about today's harvest, Cheng Nuo returns to his room after arranging for tomorrow's separate action.

…………

The next day, the second day of the conference.

Compared with more than 2000 mathematicians present at the opening ceremony on the first day, there are fewer mathematicians active around the hotel this year.

Cheng Nuo didn't care what the group of people did. He continued to listen to the academic reports according to his schedule.

Today, Cheng Nuo's first stop is the partial differential conference hall.

In the morning, there will be four 45 minute academic reports, enough to make ped mathematicians addicted.

Prof. Colin reports on geometric analysis, Jamie talks about the long-term existence of water wave equations, Professor Goode reports on the application of geometric measure theory in linear PDE singularity analysis, and Professor meha's explanation on the estimation of exponential and power nonlinear heat equations in explebesgue space.

The four professors are currently the top mathematicians in the field of partial differential. Cheng Nuo did not miss this opportunity, and the four lectures were almost heard all the time.

What impresses Cheng Nuo most is the report of Professor Jamie. The report has clear ideas and advances step by step. First, analyze the difficulties of the problem, and then solve these difficulties.

For example, variable substitution is used to solve the difficulty of non hyperbolic system, and the estimation of wave Sobolev inequality is improved by investigating the limit ODE system, so as to obtain the attenuation required by L - ∞ module of dissipative system.

These novel ideas give Cheng Nuo a lot of inspiration.

…………

In the afternoon, Cheng Nuo wandered in the three sub fields of function theory, number theory and geometry, listening to the reports of several big men.

In the evening, Cheng Nuo, who was ready to relax, went to a lecture by several invited speakers from China.

As mentioned earlier, there are 18 Chinese mathematicians as invited speakers to give one hour or 45 minute academic lectures in their respective sub venues.

Among them, there are three academicians and fifteen professors, six of whom are honorary professors of world-class universities.

Cheng Nuo first listened to a lecture by academician Zhang Pingzhi. As the youngest vice president of Peking University, academician Zhang Pingzhi is only in his fifties this year, which is considered to be the golden age for mathematical research.

At the same time, academician Zhang Pingzhi is also the winner of the Yangtze River scholars, and his reputation in the domestic mathematical circle is higher than that of Professor Fang Ruoyu.

As the leader of the delegation to the United States, academician Zhang Pingzhi and 17 other mathematicians formed the voice of China at the International Congress of mathematicians.Let people realize that China is no longer as unknown in the lower corner of the pyramid as it was in the last century.

Mathematics is a game against loneliness. Behind every bright and dazzling scene, we have a calmer and more persistent heart, which is never lacking in Chinese people.

The theme of academician Zhang Pingzhi's report is interaction between the singularity theory and the minimal model program. In the report, the latest research on singularity theory is reviewed, focusing on the relationship between them and minimal model program, including the construction and properties of dual complex, proof of logarithmic canonical threshold ascending chain conjecture, and "local stability theory" about KLT singularity The latest development of.

On the significance of scientific research, academician Zhang Pingzhi's content is no less valuable than the academic reports of those Nobel laureates. Mathematicians who came to listen to the report cried out that it was a worthwhile trip.

At the same time, several other invited speakers from China also gave lectures.

Professor Shi Changsheng, then director of the Institute of mathematics at that time, was named "quantitative almost conductivity and Its Applications" to describe the latest development of his research team in approximate reducibility and its application in the spectral theory of one-dimensional quasi periodic Schr ü dinger operators. It indicates that China's research on operator spectrum has officially caught up with the international advanced level.

Inspired by the mathematician gruss and vandepp's formula, Zhang Wei, now a professor at MIT, reviews the conjectures and theorems of voluntary periodic integrals, special cycles on Zhicun clusters, and their relationship with the central values of L-functions and their derivatives. He also discusses the relative trace formula and the basic mathematical lemma conjecture. Through derivation, the proof of the global Gan gross Prasad conjecture is described again, which causes a great sensation.

At the same age as Zhang Wei, taboo Zhiwei proposed a higher gross Zagier formula with relative basic lemma, arithmetic basic lemma, which pushed the research of automorphic representation on function field to another peak.

Unknowingly, China has become a world in the development of mathematical research, can not be underestimated.

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