After experiencing life in Princeton and the lecture at Beijing Normal University, Lu Qiujian has become much calmer now when he sees these world's top scientists; he walks freely among the crowd with a glass of wine, and he and they are all in love with each other.

Chat about the areas of interest in a wild and imaginative way.

Of course, we could only exchange some superficial views on this night, and the next day was the time for formal exchanges; in the coffee room of the Institute for Advanced Study, Lu Qiujian, La Foge, Wu Baozhu and others who were interested in the Langlands Program

The scholars were sitting around casually, drinking tea or coffee and communicating.

There is a blackboard in the center of the coffee room. If anyone has an idea, they can stand in front of the blackboard and express their thoughts. The blackboard is used to display their brief derivation process and important formulas.

The atmosphere of the exchange was relaxed yet intense. Lu Qiujian, La Foge and Wu Baozhu all stepped forward to show everyone their latest research progress, and each other benefited a lot.

This kind of exchange lasted for three days, and the topics each time were different, from the Langlands Program at the beginning to the experimental theory in the middle, and finally to the latest progress in quantum physics.

Sparks of thought collided fiercely in the small coffee room that was crowded with too many people. The people who could enter this coffee room were all top figures in their respective fields, and except for Serge and Arrow.

In addition, most people are not very old; they are energetic and quick-thinking, and rarely meet people who can match their thinking speed. Even if they do, they are from institutions such as the Institute for Advanced Study or the Ecole Normale Supérieure in Paris, Université 11, etc.

old friend.

Since they are old friends, they are relatively familiar with each other's thinking patterns. There is far less freshness than Lu Qiujian can bring to them. The most commendable thing is that Lu Qiujian's research field seems to be more extensive. No matter what topic he talks about,

Can come up with novel ideas.

Lu Qiujian was like a catfish that got into a school of sardines, constantly bringing them fresh stimulation and making them passionate and sparks of inspiration flashing in their minds.

This feeling reminds physicists such as Arroche of the Copenhagen School of Bohr, Heisenberg, Born, Pauli and others, while mathematicians such as La Forge think of the Princeton Afternoon advocated by Levshetz.

Tea time; although the times, places, and people participating in the discussion are different, the unified and harmonious spirit of free discussion contained in them is the same.

So much so that when Lu Qiujian was about to leave, all of them were reluctant to leave. It was like the pilot who had lost his leaves, or the otaku whose fast broadcast had been deleted, listless and extremely lost.

Laforge drove Lu Qiujian back to the hotel and rested for a night to adjust his condition. To allow himself to recover from the excitement of the past few days, Lu Qiujian embarked on the journey to find Grothendieck again.

Entrusting the hotel to rent a car for him, Lu Qiujian began to travel to the south of France; for the past ten years, Grothendieck had been living in seclusion in a small village in the Pyrenees.

Lv Qiujian first arrived at the city of Foix, which is about 800 kilometers away from Paris, after a day's journey. This city is the capital of the Ariège province. It belongs to the Pyrenees region in the south of France. It is a short distance from where Grothendieck lived in seclusion.

The straight line to the small village is not far away.

But since it is a mountainous area, the road will certainly not be easy to walk; fortunately, Lu Qiujian made solid preparations. After entering the area where vehicles could not drive, he put the car in the small town and walked forward on foot with a backpack on his back.

"I really don't know how Deligne got here at such an old age!" This journey could only be done on foot. Lu Qiujian was not only impressed by Deligne's physical condition.

After walking for several more hours, we finally arrived at the small mountain village where Grothendieck lived in seclusion at sunset; Grothendieck now lives in an old house without electricity. If not for the occasional corner, you can find a few pictures with written

Papers with complicated formulas, I am afraid no one will realize that this is the residence of the greatest mathematician in the second half of the twentieth century.

"You need to rest for a while, and I'll get you something to eat!" Grothendieck took Luciujian to the fireplace, and then walked toward the kitchen with staggering steps.

"Let me do it! I can go to the kitchen and see if I can cook you some Chinese food!" Lu Qiujian couldn't bear to let him cook for him, so he rushed into the kitchen first.

The unique condiments of Chinese cuisine are definitely not available, and the kitchen utensils are not very suitable, but it is still no problem to make simple dishes. Lu Qiujian laughed dumbly while cutting the shredded potatoes, but he did not expect that it would be the first time for him to cook.

The person I'm cooking for is not a cute girl but an old man!

After dinner, the guests pulled up chairs and came to the courtyard to bask in the moon, drink coffee and chat. First, they told Grothendieck about the changes that had taken place in the world of mathematics in the past six months, including Lu Qiujian's ten

Although the problem caused some noise in the mathematics community, its influence is slowly declining as time goes by; the new journal does not receive many manuscripts in each issue, and due to strict quality control, the first few issues

The number of pages is very small.

"These things take time to settle. There is no way to change those stubborn guys in the short term!" If mathematicians who have been doing research in fields related to the questions raised by Lu Qiujian have been doing research in other fields, it is better to say that if they are doing research in other fields

, it is not so easy to change the direction of research rashly.

"Yes, so I'm here to trouble you again!" Of course Lu Qiujian knew this. That's why he made a special trip to the Pyrenees to look for Grothendieck; in the last meeting, if he hadn't come forward,

, presumably the changes in the mathematics world will be even smaller! He does not have time to wait slowly for changes in the mathematics world, so continuing to use Grothendieck's influence becomes his best choice.

Grothendieck shook his head, "I am no longer interested in specific mathematical research! If I didn't want to see which direction the future of mathematics will develop, I would not go to the capital."

"I don't dare bother you with your research. I just hope to use your huge influence in the mathematics community!" Of course, Lu Qiujian would not demand that Grothendieck, who had been in seclusion for more than ten years, come out again.

"Oh? Then what do you need me to do?" Grothendieck looked at the moon in the distance and asked in a distant voice.

"In my opinion, any change needs to be promoted by people, and to change the direction of the mathematics community requires heavyweight papers." Lu Qiujian has already thought of a solution, "If you want to get a paper, someone needs to be right about it.

This new journal has generated interest! So I hope you can name yourself as the honorary editor-in-chief of this journal!"
Chapter completed!