It's not that he can't go out. As long as he doesn't go to the United States and North America, if he wants to, there's no big problem in taking a short trip to other countries.

But compared to others, it would be more troublesome for him to go out.

Whether it is diplomacy or security and other aspects, it will be quite a hassle.

Therefore, he never bothered the country.

After thinking for a while, before he could think of how to speak, Martin Gretcher from the opposite side continued: "Of course, Xu, we know that your situation may be special, but this meeting is held in Tsarist Russia.

For China, this should be a friendly neighbor, and I believe they will also ensure your safety."

"And for this meeting, I also called you in advance to communicate. The time in between can be convenient for your motherland to make certain arrangements."

"In addition, there are some reports and special situations about you at this conference that require your presence in person. Believe me, participating in this International Congress of Mathematicians is far more important than not participating."

Hearing this, Xu Chuan thought for a while, but did not agree immediately. He said, "I will consider this matter carefully. What about the second thing?"

Martin Glecher said with a smile: "The second thing is about this year's IMO International Mathematical Olympiad."

"In the past, you have also participated in international mathematics competitions, and for this year's 63rd competition in Oslo, Norway, we would like to invite you as a special person to come up with a topic for the final competition for talented young people to evaluate.

"

"If you are unable to go to Norway to take the questions in person, you can do it in China. I will arrange for someone to go to your place to pick up the questions in person."

Hearing the second thing, Xu Chuan smiled, nodded, and said, "That's no problem. I can provide you with a competition question."

After a slight pause, he smiled and joked: "Does the International Mathematical Union believe me so much? You can come up with questions without going to the site, so you are not afraid that I will leak it in advance?"

The topics of the IMO competition are provided by the participating countries in the host country. The host country forms a topic drafting committee to select candidate topics from the submitted topics.

The team leaders from each country arrived several days in advance before the team members to discuss questions and answers together.

It is estimated that there are not many people like him as a special guest in the entire IMO competition, and it may even be the first time.

Opposite, Martin Grecher laughed and said: "I think mathematicians all over the world recognize your academic character. We all believe that you would not do such a thing."

Xu Chuan smiled and nodded, "Of course."

After a pause, he calmed down his expression and said seriously and solemnly: "I swear in the name of mathematics that before the IMO competition, no one else but me will know the content of this math problem."

Martin Grecher nodded seriously and said, "Then I'll trouble you."

"In addition, regarding the International Congress of Mathematicians to be held in St. Petersburg, Russia, in July this year, we are very much looking forward to seeing you at this mathematics conference."

"For the sake of mathematics, I hope you can think carefully about communicating with your country."

"After all, for the mathematics community, you are the label of this era and the dream that everyone is hoping for and striving to get closer to."

Xu Chuan nodded and replied seriously: "Well, I will think about it carefully. If there is any news, I will reply to you as soon as possible."

.......
Chapter completed!