Chapter 821 The problem has been solved before it even started?
In the end, after Perelman calculated alone for nearly half an hour, out of the professionalism of a scholar, he stood up again and finished what was on the blackboard.
However, anyone can see it.
In the last paragraph, he was quite absent-minded.
Obviously, what was just written on the paper is extremely important.
So much so that it distracted most of his attention.
Fortunately, this method of proof is quite smooth to understand, and it didn’t cause any other setbacks.
This report meeting was overall a success.
Especially for Tang Lintian.
Although he didn't fully understand.
But a new theorem was first disclosed at the little-known Beijing Hang University lecture conference.
This incident itself is full of legend.
He has even begun to think about how to do a wave of publicity.
Tang Lintian himself does not understand theoretical mathematics, and most of the experts present just now came from other schools.
The envious looks from more than a dozen colleagues really made him feel good, but when it came time to really want to find someone of his own to help with things, it was a bit troublesome.
Therefore, immediately after the report meeting, Tang Lintian showed a flexibility that was completely unbecoming of a middle-aged man in his fifties. Like a slow arrow leaving the string, he rushed out of his seat, preparing to stop Zhenghe Pei. Lehrman and Chang Haonan left side by side.
"Professor Chang!"
Hurrying up quickly, I finally stopped the other party at the door of the auditorium.
Chang Haonan turned around and saw Tang Lintian wheezing behind him. Only then did he realize that he had been too lost in thought and seemed to have left without saying hello.
It’s really inappropriate.
"Professor Chang, I..."
Tang Lintian wanted Chang Haonan to help write a draft before he could say it, but was interrupted by the latter.
"Principal Tang, I'm very sorry, but Professor Perelman and I will not attend tonight's reception banquet."
As for Chang Haonan's request, Tang Lintian basically agreed first and then Thinking, so he nodded almost without thinking:
"Okay..."
Then I realized what incredible thing I had agreed to -
Hey guys, I have invited all the schools with top-notch mathematics departments across the country.
People come from as close as outside the Fourth Ring Road and as far away as from Hunan and Min provinces. They can’t just come to see my old face, right?
As a result, you two VVVIPs can’t come?
Tang Lintian was numb, and the expression on his face that was full of joy a second ago suddenly froze.
"Wait a minute..."
"How..."
"Didn't I just..."
He had already begun to reflect on whether he had not treated him well enough, which led to Perelman, the reportedly eccentric boss, had an opinion.
Chang Haonan’s mind was focused on the idea just now, and he didn’t have the energy to explain too much. He just waved his hand:
"Several other people from the Skeklov Institute of Mathematics will still attend the dinner."
"As for the two of us..."
He glanced at Perret, who was concentrating on thinking. Mann showed a mysterious smile:
“We are preparing to reveal the laws of how the world works.”
Solving a complex mathematical problem often takes months or even years.
But most of the time is actually spent on "calculation".
In the past, we relied on pen and paper, but now we can certainly rely on supercomputing.
However, the reason why mathematics cannot be equated with arithmetic is because there are still some truly critical steps that cannot be solved by calculation alone.
Need to rely on inspiration.
Now, Chang Haonan and Perelman have undoubtedly caught the tail of inspiration.
Naturally, it is impossible to waste time for a mere dinner party.
Tang Lintian was stunned.
At first glance, this statement seems to be boundless.
If it were said by another person, he would definitely think it was a lie.
But Chang Haonan...
In Tang Lintian's impression, the other party seemed to have never exaggerated his research -
Not even in the proposal report that generally required value sublimation.
Of course, Chang Haonan’s proposal report will also be valuable.
But the problem is that other people’s values are just casual remarks.
And his value can really be realized...
Thinking of this, Tang Lintian took a deep breath and nodded.
"Okay."...
The lights in Chang Haonan's office stayed on all night.
Perelman's absence from the dinner that day also triggered a series of speculations.
Although Beijing Airlines publicly stated that the professor was unwell and was unable to attend, rumors and rumors will not care what explanation you give.
Almost that night, rumors spread that "Professor Perelman was dissatisfied with the exaggerated atmosphere of Chinese academia and angrily refused to attend the dinner."
What happened next surprised almost everyone -
The next day, the visiting team from the Steklov Institute of Mathematics ended their trip early and returned To Moscow!
At this time, in the eyes of the ignorant people, and even some people who participated in the report meeting and banquet that day, it was simply a real hammer.
For a time, the media who caught the gossip clues rushed over like sharks smelling blood.
After seeing off Perelman and his team, and dealing with a group of media who couldn't get rid of him, Tang Lincai went to the computer room of the computing center and found Chang Haonan.
The sparks generated by one night's collision of ideas are enough to set the entire mathematical world on fire.
The part that needs inspiration is almost there.
There are only some complicated but relatively low-tech jobs left.
What Chang Haonan was doing at this time was to import calculation programs into supercomputers——
The method he and Perelman finally decided was to use surgical Ricci flow. This process is quite special and requires first Cut off a "neck" region in the manifold and "glue" it to the "top" to expand the solution interval.
The key to the problem is to find a suitable set of "necks" and "tops" and choose the correct canonical neighborhood radius.
Of course this process can also be done with pen and paper.
But for mathematicians who are about to enter the 21st century.
Yes, but not necessary.
The computer can completely do it for you.
Especially for Chang Haonan who is not ready to devote all his energy to this, this is the best way to "be lazy".
"My Professor Chang, you have to give me more strength this time..."
Tang Lintian sat down on the chair opposite Chang Haonan.
Probably because he was anxious to get angry, and the computer room was relatively hot, his face turned red as if he had just been drunk, so he took off his cotton hat and used ear protection as a fan to fan himself:
< br>"The leaders of several brother universities have called me to ask me what's going on. China Youth Daily had made an appointment to write a special report on this matter, but it turned out that you two were missing last night, and this morning The leader of the company also came over to ask questions, saying that even the page had been reserved..."
After pouring out his bitter words, Tang Lintian turned his head and glanced secretly at the opposite side.
It turned out that Chang Haonan had a hard-hearted look and did not react at all to his complaints.
After failing miserably, he could only cough twice, take off his cotton clothes, and then sit up straight:
"Professor Chang, to be honest, although I can still resist the pressure this time, you can at least reveal what you are holding back this time. I also have something to think about, right?"
"Huh——"
After hearing what he said, Chang Haonan finally raised his head and breathed a sigh of relief:
"There are two things."
< br>“First, I plan to use the three-dimensional sphere theorem deduced yesterday to optimize the previously developed manifold learning algorithm and extend the application scope of the algorithm from high-dimensional space to three dimensions and below.”
"Uh..."
The movements of Tang Lintian's hands stopped, and his face showed a bit of confusion:
"Can...explain it?"
He was high and low He is also a somewhat famous expert in the aviation field, but at this time he feels as if he has never gone to school.
Although he knew every word the other person said, he didn't understand it when put together.
"It means that the data obtained in the three-dimensional space can be further reduced in dimensionality and then handed over to the computer for processing."
Chang Haonan was already busy with important things at this time, so he explained patiently:
"Specifically, Professor Meng's hyperspectral remote sensing data feature extraction project is basically finished."
"Huh?"
Tang Lintian was shocked:
"Finish... finish the question?"
After being stunned for a few seconds, he continued:
"But that project has just been applied for, and it hasn't even been officially opened yet?"
Completing the project before starting the project is absolutely unprecedented, and I’m afraid it will be difficult to do so again.
Of course, this refers to other comers.
"Hey..."
Chang Haonan raised his hand to straighten his somewhat scattered hair:
"The main reason is that I suddenly got inspiration yesterday. I never expected it to be so fast before."
Fortunately, Tang Lintian was used to Chang Haonan's unfavorable operation, and quickly convinced himself to calm down.
"Now..."
He pointed to the computer room next door where the fan was roaring:
"Are you testing the algorithm you just mentioned?"
At this point, Tang Lintian suddenly reacted:
"No, this matter seems to have nothing to do with Perelman, right?"
"Oh...these are the second things."
Chang Haonan leaned back on his chair, waved his hands gently, and said casually:
"We are trying...no, we are trying to conquer the Poincaré conjecture."
>The hat in Tang Lintian's hand fell to the ground.
(End of this chapter)