Chapter 761 The Eve of the Military Parade

"I personally think... it shouldn't be a big problem."

Faced with Ding Gaoheng's question, Chang Haonan touched his chin and thought for a moment:

"Unless their editor was drunk and didn't send my article to the experts who study differential geometry."

In fact, in the 1990s, no matter who he submitted this article to, it would probably be handed over to a few people for review.

It's just a difference in efficiency.

Ding Gaoheng nodded.

If someone else expressed this, he might have some concerns.

But Chang Haonan always left room for maneuver and never lied. Since he could make such a statement, he was obviously quite confident.

"When can it be published?"

Ding Gaoheng asked with concern.

"That's hard to say..."

Chang Haonan shook his head:

"In theory, my proof process is just an extension of the Ricci flow, and it has not yet reached the level of establishing a new theoretical framework. Even... uh... in short, for mathematicians who study differential geometry, especially the Poincare conjecture, there should be no obstacles to understanding."

"But I heard that those big guys in theoretical mathematics have strange tempers. It's possible that they just can't find someone or have something to do. I can only say that if everything goes well, considering that the Mathematical Annals is published bimonthly, it should be published in the sixth issue of this year at the end of November at the earliest."

Hearing that the publication time is calculated in months instead of years, Ding Gaoheng was obviously relieved.

Chang Haonan paused for a moment before continuing:

"I'm not in a hurry for this. It's originally a byproduct of studying manifold learning. After the National Day, my work focus should be on finishing the WS-10 project and the data mining algorithm I just mentioned. This is a project with a strong application orientation and is more valuable at this stage."

Not to mention just two lemmas, even if the Poincaré conjecture is really proved, it is not a particularly urgent matter for China today.

Of course, it doesn't mean that the Poincaré conjecture has no practical significance.

On the contrary, the Poincaré conjecture has a wide range of applications in computer, engineering design, biology and other fields.

Otherwise, it would not have been included in the seven millennium problems seven months later.

But similar to the N-S equation, which is also a millennium problem, even if a rigorous explanation from a mathematical perspective is not found, the engineering community can still use it first.

Moreover, considering that the Poincaré conjecture requires "proof" rather than a "solution", its engineering application is even simpler than the N-S equation.

I will assume it is true.

If it is found to be invalid in the future, just find a way to add a correction.

Besides, as a reborn person, Chang Haonan clearly knows that the Poincare conjecture is valid.

In the previous life, it was proved by Russian mathematician Grigoriy Perelman in 2003.

He did not submit it to any mathematical journal, but directly published three consecutive papers on the Internet.

Because he almost proposed a whole set of new theories in the process of proof, it took other mathematicians nearly three years to finally confirm that his proof process was correct.

But before that, in 2005, Perelman had gone into seclusion and no one knew his whereabouts.

Neither the $1 million prize, nor the title of academician of the Russian Academy of Sciences, nor the Fields Medal, could make him reappear.

In fact, the greater value of the Poincare conjecture is actually in physics, such as providing a mathematical foundation for string theory and quantum gravity theory.

And that is something that will happen in the distant future.

It is not too late to consider it after China's comprehensive national strength is improved.

"Data mining... sounds like a database-related technology?"

At Ding Gaoheng's age, it's a bit difficult for him to do research, but it's not a problem to follow some cutting-edge topics.

He even has some idea of ​​the new terms mentioned by Chang Haonan.

"I guess so."

Chang Haonan nodded:

"In layman's terms, it is to filter out useful parts from massive and complex information. Currently, the more useful ones may be... production line management and... search engines."

Of course, there are deeper applications.

For example, image recognition, machine learning and even artificial intelligence.

But these are just empty promises at the millennium.

It's like wheat hasn't even started to be planted yet.

So Chang Haonan simply didn't mention it.

Let's talk about it later when there is hope of realizing it.

However, Ding Gaoheng's focus was not on line management:

"Search engines... like Google?"

"Yes, but this can only be regarded as one of the search engine technologies."

Chang Haonan replied.

It was also at this time that he suddenly realized something -

In 1999, China actually did not have its own search engine.

Baidu was only established in January 2000.

Although search engines seem inconspicuous, even after more than 20 years, only China, the United States, South Korea and Russia have their own independent search engine cores.

Of course, Baidu and Google gradually used their market monopoly to become advertising giants, which is a story for later.

But search engine technology itself is definitely positive.

Especially in the early stage of Internet expansion, it greatly reduced the difficulty for beginners to get started.

After all, directly entering the URL in the address bar is actually a bit difficult.

And if you can exert some influence on Baidu during this critical period...

Not only can Torch Group make more money.

It seems to help regulate the future development of the other party.

Win-win.

It's just that time is a bit tight.

If Baidu's core technology patent "Super File Retrieval System and Method" has been registered, it actually has the most basic conditions for establishment, and Chang Haonan can only start from improving performance.

In any case, he has secretly kept this in mind.

…

After chatting all the way, the motorcade finally arrived at Wuqing Airport.

This is one of the seven military parade support airports in North China.

It is also the largest one.

Most fixed-wing aircraft, including the August 1st Flying Demonstration Team, will take off from here.

Including several third-generation aircraft, they were also transferred from Yangcun, which was originally planned.

"Director Ding, General Chang."

After the two got off the car, Zheng Liangqun, who was wearing a pilot's uniform, had already been waiting nearby. When he saw the two, he immediately saluted.

Of course, it was mainly for Ding Gaoheng.

Chang Haonan was not a soldier, so naturally he couldn't return the salute, but just shook hands with Zheng Liangqun:

"Commander Zheng, are you... going to go into battle in person?"

"Of course."

Zheng Liangqun nodded:

"I am the pilot of the lead aircraft of the interceptor echelon. I have just returned not long ago."

In theory, all military commanders, including the Air Force Commander (excluding the political commissar), have the ability to take off and fly.

But generally speaking, due to the existence of the 45-year-old stop-flying line, the highest rank for fighter pilots who can really fly is colonel.

After all, in peacetime, if an officer is promoted to major general step by step, he will be over the age limit.

However, as one of the only two pilots in the entire army who have participated in combat operations and quasi-combat operations, Zheng Liangqun happened to be promoted to major general under the age of 45.

He also got this once-in-a-lifetime opportunity.

"You have to personally participate in training and be responsible for management... You are also hard-working."

Although Ding Gaoheng is not Zheng Liangqun's direct leader, he is still a superior after all, so it is okay to say such a thing.

"How can it be considered hard work... Others want this opportunity, but it's not their turn..."

Zheng Liangqun straightened his waist and said with a smile on his face:

"Besides, Commander-in-Chief Li has specially assigned me three deputies, which is enough to ensure that on October 1st, I will pass over Tiananmen Square with a millisecond difference!"

While the few people were talking, a roar of engines came from the sky not far away.

Chang Haonan and Ding Gaoheng turned their heads at the same time.

It was four fighter-bombers preparing to land.

Although it was too far to see clearly, Chang Haonan still remembered what Zheng Liangqun had said before, if it was a four-aircraft arrow-shaped formation, it would be the JH-7A that had just been tested and put into service.

"Let's go, other formations are also returning one after another, so it's a good time to go and take a look."

Zheng Liangqun's face showed a smug look:

"I have been a pilot for twenty years, and I rarely see such a spectacular scene as this one!"