Pang Xuelin shook his head helplessly.

Until now, he had been observing Tomoko's every move, trying to find the slightest trace of artificial intelligence in her.

But I never found that she was different from ordinary people.

Even from her, Pang Xuelin faintly felt the existence of personality and personality.

Is the technology of the three-body civilization really strong enough to create such a powerful artificial intelligence?

Or is Tomoko simply a strong artificial intelligence created by the system, or even a self-aware being?

Pang Xuelin didn't know.

But he faintly feels that after Tomoko returns to him in the future, he may bring some different colors to his life.

……

Two days later, Pang Xuelin, accompanied by Tao Zhexuan, went to San Antonio, Texas, to attend the award ceremony of the American Mathematical Society's Cole Algebra Prize.

At this award ceremony, many top scholars in the field of mathematics came.

Such as Pierre Deligne, Peter Sanek, Manuel Barvaga, Vietnamese mathematician Wu Baozhu, Chinese mathematician Zhang Yitang and so on.

The prize money is not much, only 20,000 US dollars, but it is also another heavyweight award won by Pang Xuelin after the Millennium Award and the ICCM Double Award.

At the dinner after the award ceremony, Pang Xuelin became the focus of the whole dinner.

After coping with the congratulations of many scholars, Pang Xuelin turned around and saw a slightly chubby Chinese scholar holding a glass of champagne and looking at him with a smile.

The person who came was Zhang Yitang.

In the Chinese mathematical community, Zhang Yitang should be regarded as a late bloomer with legendary experience.

Zhang Yitang was born in 1955 and studied mathematics level 78 at Peking University in his early years, and was one of the best students at that time.

In 1985, after graduating from the Department of Mathematics of Peking University with a master's degree, Zhang Yitang went to Purdue University in the United States to study for a doctorate.

It's a pity that Zhang Yitang fell into blood mold for eight lifetimes and ran into a doctoral supervisor Mo Zongjian who almost ruined his life.

Zhang Yitang's doctoral dissertation that year announced that it had proved the Jacobian conjecture.

Jacobi's conjecture was also a difficult problem in the mathematical world, and Zhang Yitang was able to solve it at a young age, which caused a great sensation at the time.

Many media outlets have reported that the mathematical skills in the paper are very high.

Unfortunately, the part of Zhang Yitang's own proof is unassailable, and the lemma quoted from his mentor has been pointed out by many mathematicians as wrong.

But his mentor just wouldn't admit it.

This is already very strange in the world of mathematics.

What's even more terrifying is that as a mentor, Mo Zongjian also slandered Zhang Yitang's personality because of this incident, and didn't even want Zhang Yitang to graduate.

Purdue's Ph.D. can be graduated in three years, but not after seven years.

Zhang Yitang was dragged to the seventh year, and seeing that he couldn't finish his job, Zhang Yitang's life was going to be dragged down.

In the end, Purdue University couldn't stand it anymore, and organized other mathematics professors to read Zhang Yitang's paper, and everyone agreed that although the paper had errors (in fact, it was Mo's pot, Zhang Yitang can't be blamed at all), the level was very high enough to graduate, so they forcibly intervened to let Zhang Yitang graduate.

Even so, Mo Zongjian did not let Zhang Yitang go, not only did he not give a letter of recommendation (his own tutor abroad does not give a letter of recommendation, which often means that the student has misconduct or major academic problems), this guy even used his influence in the academic world to make Zhang Yitang unable to find an academic job.

When he was the most depressed, Zhang Yitang could only go to restaurants to do odd jobs to make a living, so that he had not started a family in his fifties, and had been alone, with no house, no car and no stable income.

It wasn't until later that one of his Peking University students who worked at Intel found him a computer algorithm that was very difficult to solve in mathematics, and he spent three weeks in his spare time to solve it easily, so he obtained a very high-level patent.

So he was recommended to the University of New Hampshire as the lowest-level lecturer, so that he was exempted from the embarrassment of continuing to serve dishes and make a living.

At the heart of the American academic community is the tenure system, which is divided into three levels: assistant professor, associate professor, and professor. These professorships are scholars in the traditional sense of the word, who carry out both teaching and research activities.

Once tenured, these professors can do whatever they want, even if they don't have funding, don't make progress, or even stop researching, and the university can't expel them without a valid reason.

The lecturer, on the other hand, is only a temporary teaching position, and the teaching task is heavy, and there is no support for scientific research.

Under these circumstances, Zhang Yitang spent a full fourteen years as a lecturer at the University of New Hampshire.

It wasn't until 2013 that Zhang Yitang finally made a splash and published a proof of a weakened version of the twin prime conjecture in the Annals of Mathematics, proving that there are infinitely many pairs of primes, the difference of which is less than 70 million.

Although 70 million is a large number, if true, it will be the first time that it has been officially demonstrated that there are infinite pairs of prime numbers spaced less than a fixed value.

This year, Zhang Yitang was fifty-eight years old.

In the field of mathematics, to be able to make such world-renowned mathematical achievements at such an age is not to be said to be unprecedented, but it is also an unprecedented feat.

If it weren't for Mo Zongjian, with Zhang Yitang's talent, he was expected to become a generation of top mathematicians.

"Hello, Professor Zhang!"

Pang Xuelin took the initiative to raise his glass and walked towards Zhang Yitang.

Zhang Yitang also raised his glass and smiled: "Professor Pang, congratulations!" ”

"Thank you!"

Pang Xuelin said with a smile.

Zhang Yitang said: "Professor Pang, are you free after the dinner, I have a few questions about Ponzi geometry, I would like to ask you for advice!" ”

Pang Xuelin laughed and said, "Of course it's no problem, I'll go to the room to find you after we go back to the hotel later." ”

Zhang Yitang nodded and told Pang Xuelin his room number.

Then, the two chatted for a while, and Zhang Yitang chose to leave.

At this time, Deligne came over with a wine glass.

"Professor Pang, you can't shirk it anymore this time, so it's hard to come to the United States and come to Princeton to give a lecture."

Deligne smiled.

Pang Xuelin couldn't help but have a headache.

Deligne has invited him to Princeton to give a report many times, and Pang Xuelin has been pushing off several times on the grounds that there are too many domestic affairs.

On this visit to the United States, he has already promised several universities to give presentations, and it is not appropriate to leave Princeton in the past.

It's just that now, Qi Xin is studying at Princeton, and Pang Xuelin went to Princeton and didn't go to her, it was too deliberate.

After hesitating for a moment, Pang Xuelin nodded and agreed.

At that time, even if you meet Qi Xin, you will meet as an old friend, and it will not be a big deal.

Pang Xuelin smiled and said, "Professor Deligne, okay, but I have already agreed to the invitations of several other universities, and if I go to Princeton, it is estimated that it will be at least the end of October." ”

Deligne smiled, "It's okay, we're always ready to welcome you." ”

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