Chapter 465

Chapter 468

the next day.

The first International Symposium on geometry was held at the headquarters of the Swedish Mathematical Society.

There were 412 mathematicians present, including three Philippine prize winners and eight Veblen prize winners.

As the invited speaker of this session, Cheng Nuo was arranged to appear in the third place.

In front of him, the two scholars who came to the stage to give academic reports were the field prize winner and the old mathematician who had won the Veblen prize.

As the number of participants was not too large, and all the mathematicians in the field of geometry were invited, there were no branch sessions.

All academic reports are conducted in the same auditorium.

Each invited speaker has 50 minutes to give a presentation.

The meeting lasted a total of four days.

The first two days are academic reports, and the last two days are academic exchanges in the form of discussion.

Without too much elaboration, the current president of the Swedish Mathematical Society delivered the first academic report after his simple speech.

Cheng Nuo is to take out the notebook, while listening and recording with notes.

There is no end to learning.

In the field of geometry alone, Cheng Nuo did not dare to say that he had grasped 78 / 10 of them.

Free to listen to the Philippine prize lectures, this opportunity Cheng Nuo will cherish.

…………

There will be a short break between each presentation.

After the second lecture, Cheng was taken to the backstage of the auditorium by the staff.

To tell you the truth, Cheng Nuo is really the first time to give an academic report on such an important occasion. He doesn't understand any rules, and he can only be pulled by the staff like a puppet.

After checking the PPT used for the report, he simply painted a light make-up. After the team member asked Cheng Nuo if he had no other needs, he took Cheng Nuo to the entrance of the stage side.

Outside, the vice president of the Swedish Mathematical Society, who was temporarily the host, was still on the news.

"The next academic speaker is Professor Cheng Nuo from MIT. You must all know him, but as usual, I would like to introduce his achievements to you."

"The proponents of Cheng Nuo theorem and Cheng's complex ring conjecture, the prover of Jacobi's conjecture, Gushan Zhicun's conjecture and Cheng's complex ring conjecture! And the youngest winner of the Veblen prize

"Next, we will invite Mr. Cheng Nuo, who is known as a" mathematical genius ", to give us an academic report. See what kind of surprise he can bring us this time

Pa Pa Pa ~ ~!

The hall was full of applause.

At the entrance, Cheng Nuo takes a deep breath and calms down his nervous mood. He takes the microphone and walks steadily to the stage.

More than 400 people, at a glance, all of them are densely packed with heads.

This is more than 400 mathematicians, not more than 400 Chinese cabbage.

That pair of wise and thorough eyes scan, Cheng Nuo has a kind of feeling like a mountain on the back.

Mentality still needs to practice again!

Cheng Nuo grinned bitterly in his heart, and quickly turned away his eyes and paid attention to the academic content he was about to tell.

The projector projected the title of Cheng Nuo's report onto the curtain.

Many mathematicians are surprised to see this topic.

Among the more than 400 mathematicians present, only a few got the proof process that Cheng Nuo did not intend to tell the previous two conjectures.

Among those few people who know that the topic of Cheng Nuo's speech today is a minimalist program, only professor Fresnel is the only one.

Therefore, the people below were surprised, and then their eyes became playful.

To be honest, they didn't think of it.

However, they are not optimistic about Cheng Nuo.

To be exact, Bi rational geometry belongs to a branch of algebraic geometry, but it is a less popular one.

The minimal model program is one of the most popular directions in Bi rational geometry.

The cold side of the cold.

It is not too much to describe the position of minimal model program in geometry.

Moreover, the minimal model program is not only unpopular, but also very complex.

Since the concept of minimal model program was put forward in the 1980s, there are two big mountains in front of it:

the first problem of minimal model program, and the second problem of minimal model program.

If these two mountains are not removed, the straight road which is most convenient for the study of the minimal model program will be completely blocked. If you want to study, you can only take a long way, and it is a big circle.

This makes many people flinch.

In the last century, a large number of mathematicians came to move mountains, but they found that it was difficult to pry a corner of the mountain. After entering the millennium, it became a place of no interest.

Cheng Nuo chose the minimal model as the topic of his talk today. In their view, it was just by bypassing a circle of complex formula theorems.Unless

No way!

They rejected the unrealistic speculation directly in their hearts.

This is a short time!

In a moment, they thought of the experience of cheno's evil, and the positive thought in their hearts became wavering.

If that person is cheno, maybe, probably, maybe, there will be that possibility.

On the stage, cheno cleared his voice and heard loud sounds throughout the hall. "For a given algebra cluster, we must be able to generalize the blowdown operation or flip operation. After limited operations, we can get a geometric" minimal model ", which is the definition of the minimum model program."

"And we all know that there are two important problems in the field of minima." Chenault raised a finger. "The first problem of minima is to ask the existence of this flip operation."

Cheno raised his second finger. "The second question is whether the flip operation stops after a limited number of operations."

"These two problems have been two big mountains that are considered to be blocking the research of the minimalist."

"In front of me, I took a while to study it and found that rumors were indeed exaggerated." Cheng Nuo smiled, "two big problems of minimalist program are not as terrible as rumours."

Cheng Nuo, let the following people look stiff.

Listen to cheno, this guy, really won't solve the minimalist?

"We'll start with the minimal model program," said cheno, ignoring the reactions of the following people, and moving to the next page of PPT, pointing to the projection on the screen

"The existence of flip operations? This question, perhaps the previous people are not good to answer, but I can tell you clearly here that this operation exists. "

"Why?" Cheng Nuo spoke quickly. "You can see some of the formulas here."

"We first give pairing (x, △), assume and have a positive integer m, so that m (K ????{{üüüü投投投投投投投投投投投投投投投ü投ü

"Next..."

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