Chapter 163: The Great Problem

Chapter 163

Because Academician Di and Gu Lu chatted for too long, the direct result was that after Academician Di answered Gu Lu's questions, he had no time to answer the questions raised by others.

At the end of the three-hour academic lecture, everyone left the lecture hall one after another.

"Teacher Gu, by~~"

Sending Gu Lu back to the school gate, Su Xi sat in the driver's seat and waved to Gu Lu.

"Well, goodbye. ”

Gu Lu also waved goodbye.

After listening to Academician Di's lecture, Gu Lu can be said to have gained a lot.

Although it is a pity that there is no energy to study the K value function of affine DL clusters, the results in other aspects are gratifying.

Gu Lu can't wait to return to the apartment now and sort out his experience after listening to the lecture.

…………

Next.

Since he stayed up late to one o'clock last night, Gu Lu got up later than usual.

Fortunately, there were no classes in the morning, and after Gu Lu finished breakfast, he came directly to the office with his computer bag.

Brewing a cup of instant coffee and sitting at his desk, Gu Lu began his day's work.

Preparing for a lesson is very simple, Gu Lu read the textbook used for teaching, and almost conceived the content of the lecture in his mind.

Which is the key point needs to be emphasized repeatedly.

Where the content is simple, you can just pass by.

Gu Lu knew it very well.

As for the example questions that accompany the exposition of the theory in the book, Gu Lu generally improvises.

At the same time, I also exercised my ability to solve problems.

For some reason, since he came out with a set of weekly test questions a year ago, Gu Lu has gradually liked this feeling.

Indulge and enjoy.

But since then, except for a few sets of mock questions, Gu Lu has never produced any weighty test questions.

This has always been a big regret for Gu Lu.

I don't know if I have the opportunity to enter the university now.

It took half an hour for Gu Lu to prepare the courses that would be taught in advanced mathematics and mathematical analysis for the next week, and then set his eyes on a paper displayed on the computer screen.

To be precise, it is a paper that is less than 50% complete.

This paper is, of course, the manuscript of the second question on the minimum model program.

After more than a month, with the full cooperation of Gu Lu and Senior Brother Gao, according to the original schedule, the research progress has reached about 35%.

Gu Lu took a sip of coffee while his eyes swept the formulas on the screen line by line.

At just 35% of the research progress, the number of pages of the paper reached ten.

It is estimated that by the time it is fully completed, the length of the paper will be at least thirty pages and nearly a thousand formulas.

Gu Lu and Senior Brother Gao divided the entire research on the minimum model program and the second problem into two parts.

The first part is to prove that the 3D flip operation will terminate after a finite number of times.

The second part is to prove that for high-dimensional algebraic clusters, flip operations will also terminate after a finite number of times.

The proof of the first part has been completed, which is the paper displayed on Gu Lu's screen.

Gu Lu's task at this stage is to check the first part, i.e., the proof step where the 3D flip operation will terminate after a finite number of times, and make a summary finish.

On the Gao side, according to the scheme proposed by Gu Lu before, the proof of the termination of the flip operation of high-dimensional algebraic clusters was carried out.

For two hours, Gu Lu checked the paper and found that the proof process was correct.

Then, it took another hour to summarize and conclude the proof of termination after a limited number of 3D flip operations.

Mission done!

It was almost noon.

Gu Lu was just going to contact Senior Brother Gao after lunch.

But unexpectedly, Senior Brother Gao took the lead in making a video call.

Due to the time, it was still past twelve o'clock in the evening on the Princeton side.

But that's how a research dog's day is on a daily basis.

If you don't stay up late to cultivate immortals, how can you have a bright future in the highly competitive scientific research community.

When you're bald, you're stronger!

This is more than just words.

To be honest, Gu Lu has been losing her hair recently, and she has a tendency to have a receding hairline.

Gu Lu couldn't imagine that ten or twenty years later, he would give a lecture on the podium with a Mediterranean hairstyle.

The picture is so beautiful that Gu Lu can't bear to look at it directly.

Gu Lu was stunned for a moment, and then quickly pressed the answer button.

Senior Brother Gao's tired face showed a painful expression.

"Senior Brother Gu, I have good news and bad news here, which one do you want to hear?"

"Good news. Gu Lu pondered for a few seconds and replied.

If you hear the good news first, you can be a little happier.

If you hear the bad news first, you won't be happy when you hear the good news later.

Gu Lu, who is a science and engineering man, has calculated this account clearly.

"Just now the "Monthly Journal of Mathematics" sent an email, and our paper that solved the first problem of the minimum model program has been successfully included!" Senior Brother Gao said to Gu Lu in an excited tone.

Mathematics Monthly is a regional SCI journal in Sweden.

With an impact factor of 8.25, it is slightly inferior to the four major journals in mathematics among all the journals in the first district.

At the beginning, after Gu Lu and Senior Brother Gao discussed, they submitted the paper on the first problem of the minimum model program to this journal.

Now, more than a month has passed, and after calculating the time, it should indeed be almost the same as receiving a reply from the contributor.

"What do the reviewers say?" asked Gu Lu with a smile.

The paper can be included, and Gu Lu is also excited.

After all, this is the SCI journal with the highest impact factor among the journals in which Gu's paper has been included so far.

"The opinions of the three reviewers were unanimous. They affirmed our research results, and they didn't need us to revise them, and they just included the paper!" Senior Brother Gao said happily, "It is estimated that next month, our paper will appear in the "Mathematical Monthly". ”

Gu Lu smiled at the corner of his mouth, "Senior brother, it seems that our three months have not been in vain!"

"Yes, thank you so much, Senior Brother Gu!" Senior Brother Gao sighed with a smile.

This paper may be just a simple paper for Gu Lu.

But it's different for Senior Brother Gao.

He is now in the critical stage of competing for an assistant at the institute, and this paper, for him, is undoubtedly a relief in the snow.

A paper with an impact factor of more than eight points is more than enough to select a research assistant.

"It's just a win-win. Gu Lu smiled and waved his hand, and then said, "Senior Brother Gao, since this is the case, we must pay more attention to the research of the second problem of the minimalist program!"

The two have already tasted the sweetness.

The second question of the minimalist program is one level higher than the first question in terms of the importance of the results.

Once successfully resolved, the gains will definitely be far greater than they are now.

When it came to the second question of the Minimal Model Program, Senior Brother Gao's face suddenly darkened.

He looked at Gu Lu and said in a heavy voice, "Senior Brother Gu, let's ...... I'm afraid I've got a big problem!"