What Professor Yau Chengtong told his disciples was not known at all as Junxin, who had returned to his room. Of course, even if he knew, he probably wouldn't pay attention to it.

The date of the competition was set for the afternoon of the 23rd, so Junxin calculated and finally decided to take time to complete his academic exchange first, and as for the competition, it can be played on the spot. So after returning to the hotel room, Junxin did not bother the players who had not rested yet, but began to prepare for the possible next academic reports at MIT and Harvard University.

Although Professor Thurston has borrowed Professor Thurston's class in Princeton University before, Junxin has already done a lecture and achieved some success, but this time he has to face different people, so it is natural to make appropriate modifications on the basis of the last class, which is a meticulous work, so Junxin is relatively slow. There aren't a lot of things that can be changed, so don't worry about time.

Daniel Quillen, the flagship figure of MIT, is also the person who has gone out of MIT to achieve the best achievement in theoretical mathematics to date, and the winner of the last Fields Medal. But Professor Quillen seems to be a little troubled now.

It all started a few months ago. In other words, the exchange between British scientists and American scientists is very extensive, and at the same time, it is also the two countries with the greatest mobility of people. Many British professors choose to teach at universities in the United States or accept invitations from research institutes in the United States, and many American scientists accept invitations from British universities or research institutes to the British Isles.

So the poaching of universities between the United States and the United Kingdom is very serious. Unfortunately, as one of the top mathematicians in the world of mathematics and the head of the mathematics department at the Massachusetts Institute of Technology, he is also one of them, and he is one of the key caretakers.

Intellectually, going to Europe is of great benefit to one's academic studies. Professor Daniel Queeren's research focuses on algebraic topology theory, focusing on Mr. Grothendieck's K-theory, which is a branch of algebraic geometry, or rather a branch of Riemannian geometry. The Institut des Hautes Etudes de Paris, France, is the world center for research in this area. Therefore, after going to the UK, the exchanges with European counterparts will inevitably be closer, which will further promote their academic research.

But emotionally speaking, he is now the number one math person at MIT. It is precisely because of his existence that the mathematics department of Harvard University next door has never been able to cover the sky in Massachusetts, even though they have almost covered the sky with one hand. In this sense, the university did not want him to leave Massachusetts.

Professor Quelen is a person who is more affectionate, but the key now is his future research on the one hand, and his spiritual emotions on the other hand, which is really difficult to distinguish, at this time he especially hopes to find someone who can share his worries or understand him to help him make a decision.

"Professor Quillen, there's a student out there who claims to be a student at Princeton University who wants to visit you, I wonder if you have time?" Just as Professor Quillen was having a headache, his teaching assistant, Miss Mandani, knocked on the door and came in to report.

"Princeton students?" Professor Quillen was surprised and asked, "Isn't Princeton in exam week right now?" How can any student come to me? ”

"I don't know about this, but I heard him say that he seems to be coming with some team!"

"Did he say what he was doing here? What is your name? ”

"He's an Oriental, and his name seems to be from the letter, but I didn't hear it clearly."

"Oriental, Princeton, what letter?" Professor Quillen unconsciously muttered, and suddenly his eyes lit up and said, "Is it a Chinese called Junxin?" ”

Miss Mandani nodded hurriedly and said, "Yes, that's the name." I was going to say no, but he said you would meet him just by mentioning the name. ”

"Oh God, it's Jun, how did he come to Massachusetts?" Professor Quillen got up and walked out as he muttered, "Quick, come with me to pick him up, and you go and call all the professors and lecturers in the Department of Mathematics who have no courses or research assignments to my office, hurry!" ”

Miss Mandani was stunned after listening to Professor Quillen's words, and then her good professionalism made her quickly sober up, realizing that the long thin Chinese who had just stood in front of her and talking eloquently was a great person, and immediately followed Professor Quillen out of the office door, glad that she had nothing to be rude.

"Goodbye to Princeton, you haven't seen each other in two months, have we? Welcome to MIT! ”

"I'm so glad to see you're in good health! How are you doing after the Princeton Math Symposium? ”

"Huh!" Professor Quillen just smiled and didn't say anything, but hurriedly greeted Junxin to his office.

"Is Professor Mirno alright? Two days ago, I had a phone call with him to discuss new breakthroughs and views on the K theory. Professor Quillen asked about Professor Mirno's current situation. When he was a visiting scholar at the Institute for Advanced Study in Princeton, he had a very good relationship with Professor Mirno, and the two of them had the same research direction, so there were frequent phone calls and letters, and many times even the papers were signed together.

"He's still so joking!" Junxin said with a smile, "Joke with us from time to time." ”

The two exchanged pleasantries like this for a while, and Professor Quillen suddenly asked, "How did you have time to come to Massachusetts?" Isn't this a good place to study pure mathematics? ”

Jun Xin frowned, he heard that Professor Quelen's words seemed to mean something else, but he didn't delve into it, and instead replied: "I'm now the assistant coach of the Princeton basketball team's tactical offense and training, and on the 23rd, Princeton and MIT had a game, and I came with the team. ”

"Oh? Looks like you've had a lot of money lately! Professor Quelen crooked his lips and said with a smile, "Your four-dimensional Pangjialai conjecture has caused a huge sensation in the mathematical community, but I didn't expect you to still play basketball games?" ”

"Hehe, the basketball team will go to the away game to participate in the game, I can follow the basketball team's game to visit and communicate with various universities in the United States, and I can also be reimbursed for the round-trip expenses, why not?" Jun Xin smiled nonchalantly.