The military-industrial scientific research system of the academic master.

After the algorithm development work on manifold learning came to an end, Chang Haonan received two messages almost at the same time.

The first one comes from New Jersey on the other side of the ocean.

The review results of "Annals of Mathematics" are out——

No need to modify, just publish directly.

According to the reviewers' comments, although the paper still has room for improvement in terms of writing habits and wording, attention should not be paid compared to the impact its content may have on differential geometry, and even the entire mathematical community. Too much focus on these meaningless details.

Therefore, the editorial board decided to publish this paper in the next issue, the 1999th issue of the Annual Journal of Mathematics in 12, and make it the back cover of the current issue of the magazine.

The final result was expected.

However, it was a surprise that it went so smoothly that it didn't even require minor repairs.

After all, this was his first foray into theoretical mathematics in his two lives.

Of course, receiving this email only means that the paper has been accepted.

In this era, there are no such things as online publishing or advance publication. If you want to see the paper, you have to wait until the magazine is officially published in November.

In other words, the Annual Journal of Mathematics is still keeping up with the times and will issue an electronic version simultaneously.

If it had been left in the past, or in other journals, we would have had to wait for the physical book to be mailed across the ocean.

Therefore, the impact of this article should have to wait for another stage to be reflected.

However, the name Chang Haonan has obviously gained some status in the mathematics community because of this article.

Because, along with the review results, there was also an invitation letter signed by Mikael Lagerstedt, senior editor of the editorial department of the Annals of Mathematics.

Chang Haonan was invited to Princeton to attend an annual mathematics conference held at the end of December 1999.

Of course, Princeton University’s status in the mathematics community does not need to be mentioned much, and being invited by the editorial board of the Mathematics Annual can be regarded as an honor.

But...

If Chang Haonan was just a simple mathematician, then it would not be a bad idea to go to the long world.

After all, although there are many Chinese mathematicians, mathematicians with Chinese nationality who have made achievements in Chinese research institutions have not appeared for some years.

But Chang Haonan's identity is complicated and special after all.

Even if you are traveling within the country, you must make an itinerary and security plan in advance.

It is impossible to go abroad without necessity.

However, Chang Haonan did not reply and refused.

In the world of mathematics, there are still many weirdos.

If he doesn't respond to emails or attend meetings, he risks being dismissed as an eccentric genius like Perelman.

But if the straight ball is rejected, it will become more rigid.

The Annals of Mathematics and Princeton still have to give some face.

As for the second matter, the matter that Chang Haonan assigned Zhang Liangping to handle has already come to fruition.

……

In the group meeting room.

Seven members of the leadership team, including Chang Haonan, sat on both sides of the conference table.

Since the aerospace power group was officially established, this is the first time that such a complete lineup has been held for a meeting.

"Comrades."

Zhu Linyu, who was sitting in the first place, spoke first:

“In addition to summarizing the work of each group in the past few months since the establishment of the group, we are convening this meeting to discuss the cooperation between us and the French Snecma Group.”

After all, Zhu Linyu is the leader of the group.

Whether Chang Haonan finds someone to investigate or asks someone to contact the French side, although it is within his own scope of authority, he must report it to him.

Including this meeting, Chang Haonan suggested that Zhu Linyu organize it after receiving the investigation results from Zhang Liangping two days ago.

Therefore, although the latter did not know the specific details, he had already known that Snecma came to ask for cooperation.

But after hearing this, the other five people looked at each other, obviously a little surprised.

However, no one interrupted the leader on such occasions, they just waited quietly for the next step.

"Comrade Haonan, please introduce the specific situation."

Zhu Linyu's voice drew everyone's attention to Chang Haonan.

"it is good."

Chang Haonan took out the materials he had prepared long ago from his briefcase.

"The cause of this incident is that about half a month ago, China Aerospace Technology Group received a cooperation invitation letter from Dassault Group China Region, hoping to work with the Aviation Industry Group to develop a longer range aircraft. Business jets, and we, as well as Snecma Group, are also on the list of partners.”

"Of course, this thing sounds a bit strange. After all, the demand for business jets in our country is still in single digits. Even if Dassault has laid out the blue ocean market in advance, there is no need to make such a big move."

"So, I first sent a few experienced comrades to make tentative contacts with the other party to see what kind of medicine they were selling."

"Then it soon became apparent that the business jet cooperation was just a shady pretense. Throughout the negotiation process, the French were always trying to find out how much we understood the CFM56 core aircraft."

Having said this, Chang Haonan placed a piece of paper on the projector's shelf.

It is a meeting minutes.

"CFM56?"

Lin Zuoming looked at Chang Haonan blankly:

"It seems that our group does not have a model based on this core machine?"

"Indeed not."

The latter smiled:

"But the French don't necessarily think so."

Chang Haonan said and put on another piece of paper.

It’s the English newspaper I read before:

"Currently, the West's understanding of the turbofan 10 engine is still at the state before we re-established the project, which is the state of benchmarking the F110GE100 engine, so it is natural to think that it was developed on the basis of the CFM56 core engine."

Hearing this, the other people showed expressions of laughter.

"It seems that our boss, Chang, moved too quickly and caught others off guard..."

Zhu Linyu joked with a smile.

The conference room was suddenly filled with a happy atmosphere.

However, after all, the main topic was not finished yet, so the serious atmosphere was quickly restored.

"If I remember correctly, CFM56 should be jointly developed by Snecma Group and General Electric."

Deng Shiyou, one of the deputy general managers, said:

"Does the French want to find evidence to hold us accountable for infringement of intellectual property rights?"

"That's what I'm going to say next."

Chang Haonan took out another English report and put it on the projector.

But looking at the date, it should be from the newspaper in the first half of this year:

"Because the other party has not made a clear position yet, the following are all my current speculations."

Although he said this, several others still pricked up their ears.

"In the first half of the year, actually after the Balkan crisis ended, probably in retaliation for the French being the first to announce their separation from the Allies, General Electric announced that it would launch a compliance investigation into France's new generation military engine project, although it has not yet given an explanation. The official investigation results, but judging from the follow-up actions, it is equivalent to suspending technical support for the M88 turbofan engine currently under development by France and planned to be used in Rafale fighter jets.”

"It should be emphasized here that the property rights of CFM56 belong to CFM International, a company jointly established by Snecma and General Electric, while M88 is a model independently developed by Snecma. After General Electric withdrew its support, France should be in trouble Unsolvable technical problems have led to obstacles in the mass production of engines, including Rafale fighter jets.”

In fact, the core machine of the M88 is not completely equivalent to the CFM56. In theory, it can be regarded as "self-developed in France." However, a considerable part of the design refers to the two classic models of F404 and F110, and even some parts are simply universal.

"so……"

Lin Zuoming felt that he understood it, but he also felt that the plot was a bit magical, so he hesitated for a while before continuing:

"The French used their own core machine but were stuck by the Americans. At this time, when they saw the normal installation of turbofan 10, they thought we had a unique understanding of CFM56, so they wanted to seek technical assistance?"

Quite a kind of...

Indescribable beauty.

"At least, that's the most likely explanation."

Chang Haonan nodded.

Of course he won't stick to his words, but everyone knows in their hearts that they are basically inseparable.

For a moment, the conference room fell into silence.

No one knew what to say.

Emotional, that is, very emotional.

Especially old comrades like Zhu Linyu know that we tried to find Snecma for technical guidance in the late 80s.

As a result, ten years later, the identities of teachers and students have undergone a 180° change.

In the past, you ignored me, but now I...

cough cough.

"So Mr. Chang, can we...really be able to give the French the help they need in terms of turbofan engines?"

Finally, Lin Zuoming broke the silence:

"After all, turbofan 10 actually has nothing to do with CFM56..."

Chang Haonan organized the language a little:

"Technically speaking, the core machine of Turbofan 10 is one generation ahead of CFM56, so although we have not studied CFM56 in depth, it is difficult to provide them with an immediate solution as the French hope, but if we really cooperate, , help them improve the M88, and at least let the Rafale fighter jets go into mass production first, there will be no problem. "

"Of course, we have to wait until the design of the Turbofan 10 is at least finalized, otherwise we don't have that many manpower."