Although the state had made comprehensive arrangements, before leaving for St. Petersburg, Xu Chuan stayed at a base in the capital according to the above advice and received some professional training.

The main purpose is to understand some problems that may be encountered during the visit, and to make a correct way to deal with them.

For example, if a moving convoy is attacked, don't get out of the car rashly.

In this regard, Iranian nuclear physicists have demonstrated first-hand what happens when a terrorist attack is carried out of a bulletproof vehicle.

Although Zheng Hai would follow him every step of the way abroad under normal circumstances, at least he could let him know what to do in case of an unforeseen situation in order to save his life.

Although he was not very interested in these things, Xu Chuan still carefully studied these 'basic' knowledge, after all, it was related to his own life and safety.

Even though it's almost impossible for him to use these things.

Mid to late July, Beijing Capital International Airport.

On international flights to St. Petersburg, Russia.

Walking on the boarding bridge, Xu Chuan looked into the distance, the endless blue sky was cloudless, and it seemed empty and quiet.

Behind him are Zheng Hai and Tang Ran, the former is a bodyguard, the latter is a life assistant, and of course, she will also be a bodyguard when necessary.

In fact, Xu Chuan still doesn't know that the assistant he asked NTU to select has long been replaced.

After all, in their daily lives, Tang Ran and Lu Ling have never shown their strength, so he doesn't know where the two assistants came from.

However, it is worth mentioning that Tang Ran and Lu Ling's work ability is quite strong, and the two of them are enough to arrange his daily life, whether it is scientific research work or trivial daily life.

Crossing the boarding bridge and stepping into the plane, Xu Chuan walked towards the first class cabin as Zheng Hai went to place his suitcase.

As soon as he found his seat, he suddenly found that there was an 'acquaintance' sitting next to him who looked like he had met somewhere, but for a moment he couldn't remember who it was, so he stared at it twice.

On the side of the aisle, it seemed that Tian Gang, who was sitting on the seat staring out the window, turned his head, and the eyes of the two were so matched.

Looking at the 'acquaintance' who turned his head, Xu Chuan remembered who he was.

Academician Tian Gang of the School of Mathematics of Peking University, no wonder he felt a little familiar before, but he didn't expect to meet him on the plane.

Sitting in the seat, after meeting Xu Chuan's gaze, Tian Gang was stunned for a moment, then the corners of his mouth moved, and he reflexively pulled out a somewhat stiff smile.

After recognizing Tian Gang, Xu Chuan was also a little surprised, but he still smiled and said hello: "I didn't expect Academician Tian to be here, so coincidentally?" ”

Hearing this greeting, Tian Gang had an unnatural smile on his face: "Academician Xu, it's such a coincidence that you are also here."

He really didn't expect to meet this person he didn't want to meet on the plane, although there was no direct contradiction between the two, but because of Mo Kun's matter, the Department of Mathematics of Peking University had a stalemate with Xu Chuan for a while.

And as a leading figure in the Department of Mathematics of Peking University and Mo Kun's mentor, he will meet this 'acquaintance', and it would be hellish to say that he is not awkward.

If he knew that Xu Chuan was also on this plane, he would have to refund the ticket for another trip, or even buy him again without refunding.

But now it's about to take off, and it's too late to get off the plane temporarily.

And what he didn't figure out was that logically speaking, even if this person went to St. Petersburg to participate in the National Mathematics Congress, shouldn't he also take off from Jinling?

It's not that there is no international airport in Jinling, what are you doing in the capital?

Could it be that the planes taking off from here smell a little better?

What's even worse is that there are a lot of flights to St. Debilberg in Tsarist Russia today, at least a dozen or so, but why can they be bumped into with such a small probability?

Xu Chuan didn't care too much, he smiled, sat down and continued: "Academician Tian is also going to St. Petersburg to participate in the International Mathematical Congress?" ”

Hearing this, Tian Gang probably forgot something, and there was some pride in his tone: "Some time ago, I happened to have a little research on four-dimensional manifolds, so the IMU invited me to do a forty-five-minute special report, and I bought a ticket." ”

For him, being invited to give a 45-minute presentation at an international mathematical conference is not something to boast about, but he is still very proud of a special report on a difficult problem.

After all, there are only a handful of people in China who can have this kind of treatment.

But as soon as his words fell, he remembered something, and the corners of his mouth suddenly twitched unnaturally.

MMP, in terms of manifolds, this person in front of him is the real ancestor, and what he is showing off is simply a class axe!

Gan! Why did you forget this!

Hearing this, Xu Chuan didn't think about it so much, he smiled and said: "Academician Tian can still struggle at the forefront of the mathematical world at such an old age, he is really an old man with thousands of miles of ambition, congratulations." ”

Looking at the smile on Xu Chuan's face and listening to the congratulations, Tian Gang felt more and more uncomfortable in his heart.

Is this a mockery of him for getting old?

But there was something about it, and he really couldn't refute it.

After all, in terms of age, this person is only in his twenties, and his previous students are older than him before they graduate.

Thinking about it, Tian Gang was not ready to talk anymore, and turned his head to look out the window.

There's no need to compare with this demon, the more you compare, the more angry you get!

And this person is still running around at this internationally sensitive point, isn't he really worried that he won't be able to go back?

In case something happens outside, is it worth the state's investment in him?

Regarding Tian Gang's reaction, Xu Chuan did not have too many surprises.

He took the initiative to say hello, in fact, he also wanted to repair the relationship with Peking University.

After all, the matter between him and Mo Kun almost made Peking University and him confront him publicly, and it was only one step away from the stiffness of Peking University and Qiu Chengtong more than ten years ago.

As a leading figure in Peking University and as Mo Kun's mentor, may he have some opinions about him?

In fact, he doesn't have much of an opinion or opinion about the Department of Mathematics at Peking University.

Mo Kun's personal affairs have never risen to the academy, it's just that the people of Peking University can't pull it down by themselves, which has nothing to do with him.

But for Tian Gang, he may not be able to get over this hurdle in his heart?

Maybe you think that the original incident made Peking University lose face? Or maybe it's something else? Anyway, Xu Chuan didn't know what he was thinking.

But at present, the meaning shown by this leader of Peking University is a bit of an idea that you are forcing you to do it, and I will just guard my own one-acre and three-point field.

Shaking his head slightly, Xu Chuan didn't pay much attention to it, and took his attention back.

In fact, for him today, the so-called school mountain actually doesn't mean much.

His influence has long been not limited to the world of mathematics, physics or even the entire academic community.

Whether it is artificial SEI films, nuclear waste reuse technology, or controlled nuclear fusion technology, they are all technologies that can affect national deployments, strategies, and even the entire world landscape.

His opinions, within the scope of his profession, are enough to be worthy of the influence of a school!

This is probably the best explanation for him.