In the evening of the same day, Jiangcheng University held a grand dinner in the hotel where the mathematicians stayed to entertain the mathematicians who had come from afar to attend the lecture.

Pang Xuelin naturally became the well-deserved protagonist of the dinner.

After the dinner, Shinichi Mochizuki and Perelman found Pang Xuelin together.

"Pang, I hope to participate in the next Ponzi geometry seminar held at Jiang University, I don't know if it's inconvenient?"

Shinichi Mochizuki said a little embarrassed.

Pang Xuelin laughed and said: "Of course, this is unbelievable, Professor Xinyi, if you don't come to me, I'm going to look for you, you have a deep theoretical foundation in far Abelian geometry, I believe that your arrival can bring a lot of unexpected surprises to our seminar." ”

"Thank you very much, I will go back to Japan tomorrow to deal with personal affairs, and report to Jiangcheng University on time after New Year's Day."

Mochizuki laughed.

"Okay, I'm looking forward to seeing you then." Pang Xuelin smiled slightly, turned his gaze to Perelman, and said, "Mr. Perelman, are you interested in coming over to participate in the seminar?" ”

Shinichi Mochizuki also looked at Perelman and said, "Grigory, come over with us, I believe that the discussion in the seminar will definitely be much stronger than your own research at home, and the sparks of ideas between each other may bring us different inspirations." ”

Perelman hesitated for a moment and said, "I have to think about it." ”

Pang Xuelin knew Perelman's character, and he was not reluctant, and said with a smile: "Okay, no matter when you come over, we are always welcome here." ”

The next day, the mathematicians from all over the world left one after another, and before leaving, Schultz said goodbye to Pang Xuelin, hoping that he would have time to visit and exchange in Germany.

Pang Xuelin agreed, and as for inviting Schultz to participate in the Ponzi Geometry Seminar, Pang Xuelin did not speak.

On the one hand, Schultz is an expert in the field of arithmetic geometry and is currently working on problems with the Hodge conjecture, which has little to do with Ponzi geometry.

On the other hand, a Filipino Award boss in his early thirties ran to Jiang University to be his junior brother, and it is not appropriate to say it.

In the following days, Pang Xuelin completely relaxed.

The papers have been sent out, the report meeting has been held, and the rest of the time, just wait patiently for feedback from the academic community.

However, Pang Xuelin is not in a hurry, because it is followed by the Christmas holiday in the West, Christmas and New Year's Day, nearly ten days, and it is estimated that there will be no feedback on his three papers at least until New Year's Day.

During this time, Pang Xuelin went to Li Changqing's laboratory occasionally to supervise the preparation of high-purity single-walled carbon nanotubes, and the rest of the time went to Binjiang's villa as a supervisor.

The renovation of MOSS's new home is underway.

Dad found him a more reliable construction team, and when the other party learned that it was the famous mathematician Pang Xuelin who wanted to build a data center, he gave Pang Xuelin a 20% discount on the spot.

In addition, in the name of Pang Xuelin, the power supply bureau's transmission line renovation project is also unimpeded, and there is no need for Pang Xuelin to pay at all, and the power supply bureau itself will bear the cost of power grid transformation.

In the words of the director of the power supply bureau, this is to serve our great mathematicians, and to let Pang Xuelin better engage in scientific research, how can he still collect money?

In this regard, Pang Xuelin had no choice but to spread his hands.

……

Unconsciously, half a month passed in a flash.

On January 4, my parents completed a three-month middle-aged honeymoon trip and returned to Jiangcheng.

That night, the family had a rare reunion dinner at their grandparents' house.

On January 5, Shinichi Mochizuki arrived at Gangseong University to report and accepted a professorship from the School of Mathematical Sciences at Gangseong University.

Pang Xuelin also doesn't know how Liu Tingbo persuaded Mochizuki Shinichi, but Mochizuki Shinichi can teach at Jiang University, which is also a good thing for Jiang University School of Mathematics.

On the same day, there was also good news that the "Annals of Mathematics" officially accepted Pang Xuelin's three papers.

And according to the news from Deligne, the Annals of Mathematics is preparing to publish a special issue for the proof of Ponzi geometry, the ABC conjecture, and the solution of nonlinear partial differential equations.

There has not been much particular reaction from the academic community to these news.

Half a month ago, Pang Xuelin's lecture on Ponzi geometry has conquered the entire mathematical community.

In the words of Tao Zhexuan on his blog: "The emergence of Ponzi geometry has pointed out the direction for the development of algebraic geometry in the coming decades, especially its application in solving nonlinear partial differential equations, which will profoundly change the development of various disciplines." ”

On January 10th, the opening ceremony of the Ponzi Geometry Seminar of Jiangcheng University was officially held, and the total number of participants in the seminar was 50.

These 50 people are composed of 25 talented students and scholars from the School of Mathematics of Jiang University, as well as 25 scholars from all over the world.

Among them, Pang Xuelin unexpectedly saw the figure of Ai Ai, the undergraduate student who had left a deep impression on him.

In this seminar, the internal candidates of Jiang University were selected by the assessment of the School of Mathematics of Jiang University, and the test papers issued by Pang Xuelin were used.

Therefore, although Pang Xuelin knew that there was an extremely talented undergraduate student who was selected for the seminar, he did not expect that this person was Ai Ai.

However, Pang Xuelin didn't care too much, and being able to be selected for the seminar shows that she really has a certain ability, and it is not impossible for such a talented student to take it with her.

Another thing that made Pang Xuelin feel a little surprised, the World Congress of Chinese Mathematicians originally planned to be held at Mizuki University in January was postponed to February, and Pang Xuelin could only regretfully postpone the trip to Beijing.

Yao Bingxia could only reluctantly say on WeChat that he would take Pang Xuelin to visit the capital after the New Year.

On the evening of January 24, Pang Xuelin invited members of the project team left behind in Li Changqing's laboratory and more than 20 scholars from all over the world to have a Chinese New Year's Eve dinner at home.

There was nothing to do during the Chinese New Year, the only thing Pang Pang Xuelin had a headache was his father's friends in business, and when he came to visit the New Year, he would always ask a few words if Professor Pang was not there, so Pang Xuelin had no choice but to come out to meet guests.

After many times, Pang Xuelin also felt annoyed, and after the seventh day of junior high school, he came out of home and returned to school.

The school will not open until the Lantern Festival, Pang Xuelin is rarely quiet, brushing up papers on the Internet every day, going out for a run in the morning, occasionally getting together with Mochizuki Shin, chatting about the latest research progress, and don't live too leisurely.

But this life lasted less than a week.

At eight o'clock in the evening on February 5, 2020, Pang Xuelin had just finished reading a paper, and the voice of the system suddenly sounded in Pang Xuelin's mind: "Please note that the new plane will be opened in half an hour, please make relevant preparations." ”

Pang Xuelin was slightly stunned, and then suddenly it dawned that nearly three months had passed since he came back from the wandering earth world.

However, this time the system was more face-saving and gave myself half an hour to prepare.

Half an hour later, Pang Xuelin lay on the bed and listened to the system countdown: "Ten, nine, eight, seven, six, five, four, three, two, one...... Host, welcome to the world of The Country Teacher. ”

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