"Cool brother, ask for a group photo!

"Don't ......"

Chen Zhou didn't expect that this foreign girl would even learn the domestic one......

Finally, escaping from the last mobile phone camera, he only felt exhausted.

Subconsciously, he glanced at his arm.

This time, it should be fine......

After escaping the crowd, Chen Zhou quickened his pace and walked towards the hotel.

Take advantage of this time to go back to the rest meeting.

Doesn't that mean that there will be a closing ceremony and a dinner in the evening?

Don't you be full of energy and perfectly show your handsomeness and temperament?

Chen Zhou still has some regrets about not being able to complete today's performance with the most perfect temperament image.

But what Chen Zhou didn't think about was that if he was more perfect, he might not have walked out of the crowd yet.

Back at the hotel, to Chen Zhou's surprise, he was stopped by the young lady at the front desk last night.

"Mr. Chen, your tray. ”

Looking at the smile on the face of the young lady at the front desk, Chen Zhou was slightly embarrassed: "Uh...... Thank you ......."

Reaching out to take the tray, Chen Zhou walked away quickly.

The young lady at the front desk looked at Chen Zhou's departing back and couldn't help but laugh dumbly.

This little brother is quite interesting, but he has not yet asked for contact information.

Then she stroked her cheek, could it be that she was not beautiful enough?

After returning to the room, looking at the steaming food, Chen Zhou's stomach made a long-lost protest.

Three times five divided by two, Chen Zhou solved these foods.

This meal, although in a hurry, was quite satisfying.

You know, he's been hungry for almost a day and a night......

Night falls outside the hotel.

Chen Zhou was woken up by the ringing of the phone.

It was not Dean Sun's phone, but an unfamiliar number.

After thinking about it, Dean Sun and the others should also be back, waiting for the closing ceremony and the start of the dinner.

This time Chen Zhou was not like last time, before he came back, he sent a message to Dean Sun.

Otherwise, Dean Sun would have to find him again if he couldn't keep it.

Looking at the mobile phone that was still ringing, Chen Zhou pressed the answer button.

"Hey, hello, I'm Chen Zhou. ”

"Chen Zhou, where did you kid go, I searched for a long time at school and didn't find you. ”

Hearing this voice, Chen Zhou couldn't help but be stunned, this Professor Zhang Shouwu, is he looking for himself?

Moving the phone away a little, Chen Zhou noticed that he had slept for less than three hours.

If you count from the time he left the MIT campus, the old man looked for him for nearly three hours.

Didn't remember to call yourself until this time?

"Ahem...... Chen Zhou coughed lightly twice and said, "Professor Zhang, do you have anything to do with me?"

Zhang Shouwu didn't answer and asked, "Where are you?"

Chen Zhou replied: "At the hotel." ”

"Wait for me, I'll come to you!"

After Zhang Shouwu finished speaking, he hung up the phone, leaving only Chen Zhou in confusion.

Chen Zhou, who lay down again, couldn't help muttering, "Is there anything you can't talk about on the phone?" ”

I can't sleep now, but I can lie down for a while.

About ten minutes later, there was a knock on the door of Chen Zhou's room.

Chen Zhou reluctantly got up and went to open the door.

Looking at Zhang Shouwu who was in a hurry outside the door, Chen Zhou asked strangely, "Professor Zhang, what's wrong?"

Zhang Shouwu said: "Old Zhang...... He ......"

Chen Zhou's expression suddenly tightened, could it be that Professor Zhang Yitang is out of ...... What's wrong?

"Professor Zhang, don't worry, speak slowly. ”

Chen Zhou helped Zhang Shouwu into the house.

Zhang Shouwu breathed a sigh of relief, and walked over quickly, his body was really a little unbearable.

"I'm still old, so I walked this little way......"

Seeing Zhang Shouwu sitting on the chair and resting instead, Chen Zhou couldn't help but hurriedly say, "Professor Zhang, what happened to Professor Zhang Yitang?"

"Yes, yes, I'm here to tell you about Lao Zhang. I think about it, how to say ......"

Chen Zhou looked at Zhang Shouwu speechlessly.

Zhang Shouwu finally said: "Lao Zhang, he bought a plane ticket to go back to California overnight. ”

Chen Zhou frowned slightly, not understanding what he meant.

Zhang Shouwu continued: "At your report meeting, Lao Zhang listened extremely carefully throughout the meeting, and almost never made a single mistake. ”

"After you completed the proof of the Kramel conjecture and left those few lines of formula for the Jebov conjecture, Lao Zhang was like a demon. ”

He muttered that it was so, that it was, and then he went to the airport alone without saying hello. ”

"When I called him later, I found out that he was going back to California and going back to school for a retreat. The study of twin prime conjecture has a new idea. ”

"That's it......" After listening to Zhang Shouwu's words, Chen Zhou suddenly relieved himself.

Zhang Shouwu made him think that something had happened to Zhang Yitang.

It turned out to be the study of the twin prime conjecture, and there was a new idea.

That's a good thing.

It is also something that Chen Zhou is happy to see.

Seeing the smile on Chen Zhou's face, Zhang Shouwu couldn't help but ask: "I said that the two of you were playing dumb riddles in front of me that day? You got inspiration from him and solved the Cramel conjecture, and now he has gained new ideas from you, and hurried back to retreat to solve the twin prime conjecture." Why didn't I get inspired?"

"This ...... Probably...... The time hasn't come yet......" Chen Zhou held back a smile and quipped.

Zhang Shouwu: "......"

chatted with Zhang Shouwu a few more words and comforted the "frustrated" old man.

Chen Zhou went to wash up and prepare for the closing ceremony and dinner in the evening.

Speaking of which, this time here, except for Zhang Yitang and Zhang Shouwu, Chen Zhou has not had any contact with other mathematicians.

7 p.m.

In the specially arranged banquet hall of the hotel, the academic conference is about to close.

This academic conference was actually led by the Mathematical Association of the United States and the Mathematical Society of the United States.

The Massachusetts Institute of Technology (MIT) is the organizer, providing the venue and manpower.

The Mathematical Society of the United States, also known as AMS, was founded in 1888.

It has more than 30,000 individual members and 570 corporate members worldwide.

Among them are Chinese mathematicians Qiu Chengtong and Tao Zhexuan.

In China, there are Professor Long Yiming, academician of the Chinese Academy of Sciences, Professor Chen Famu and others.

Unlike AMS, the Mathematical Association of the United States, or MAA, is a professional body that focuses more on college mathematics education.

Members include faculty members of colleges and universities, graduates and non-graduates, as well as mathematicians and scientists.

MAA is also a well-known publisher of professional and general mathematics books.

Therefore, the closing ceremony of this conference was also co-chaired by MAA and AMS.

As the closing ceremony began, the hall fell silent.

After the usual operation, a figure slowly walked onto the stage.

That person was none other than the newly elected president of the MAA, the first non-white president in the history of the MAA, Francis Sue.

What's more, this is a mathematician of Chinese descent.

At the closing ceremony of such an academic conference that witnessed history, a Chinese mathematician gave the final closing speech.

There are many different meanings.