"In three days' time, Columbia University's mathematics department will have a meeting, and you will be invited to attend, so be sure to be there." Professor Stehl said earnestly.

"yes, I see!" Junxin replied lightly.

After Professor Stehl left, several professors who had not spoken on the side came forward to congratulate him with a smile.

"You have won the prize, this is just yesterday's glory, there are still a long days ahead!" Junxin said with emotion. The United States is not where he wants to stay, and it will be when he returns home that he will really show his talents.

Since Junxin was hired as a visiting professor at Columbia University, Junxin had to bleed, and the group went to a Chinese restaurant to celebrate for a while before they dispersed.

In the next few days, Junxin visited several professors separately, mainly to discuss and research their professional issues. During this period, for Junxin, an outstanding junior compatriot, several professors naturally knew everything and said everything. After three days, Junxin has also gained a lot.

Professor Yang Zhenning naturally does not need to say much, he elaborated on the question of the Yang-Mills equation raised by Junxin, and elaborated on the physical origin of this equation and his further research work on this equation over the years. Professors Gao Kun and Steven Chu focused on the management and R&D of the laboratory, which gave Junxin a further view on the problem of mastering the laboratory. From the exchange of Professor Ding Zhaozhong, Junxin has learned the method of controlling and managing a super-large-scale academic team, although it cannot be practiced, but Junxin has every reason to believe that he will have the opportunity to take charge of such a team in the future.

Among all the professors' conversations, the one that helped him the most was undoubtedly Professor Wu Chien-shiung's experience. Throughout Junxin's life, whether it is in his previous life or in this life, his field is only limited to theory, and there is indeed very little experimental practice. The occasional few were just a few experiments that came to CERN or other physics institutions with Professor Edward Witten.

However, in a conversation with the world's top experimental physicist, known as the queen of physics, Junxin humbly asked for experimental knowledge and was richly rewarded. Wu not only elaborated on the implementation process and ideas of several of his major experiments, but also presented some of his experimental notes to Junxin as a gift to celebrate his appointment as a visiting professor at Columbia University.

These notes include the whole process of her experimental design and experimental adjustment in the verification of cosmic non-conservation experiments, which completely makes up for the most shortage of scientific research shortcomings of Junxin.

Although other professors have also given Junxin gifts, such as Professor Yang Zhenning, he gave Junxin some rare books in the field of physics, and these books are difficult to obtain even if the development of electronic technology has reached a peak in the 21st century.

Professor Wu Dayou presented several physics monographs he wrote to Junxin as a celebration of him. Several other professors also took out some of their own treasures and gave them to Junxin, so that Junxin's private collection became enriched.

Three days later, under the witness of many professors at Columbia University, Junxin officially became a visiting professor in the Department of Mathematics of Columbia University before he received his doctoral certificate.

After all the things at Columbia University were over, Junxin and Gu Mengxue relaxed on the streets of New York for two days, and then took the bus to Princeton and returned to Princeton University. And here, waiting for him is the first glorious moment in his life, that is, the moment when he officially graduated from Princeton University, received his doctorate certificate, and attended the graduation ceremony.

"I would like to invite the 1982 Ph.D. graduates of the Department of Mathematics at Princeton University to come to the stage to receive their degree certificates."

In 1982, there were a total of 12 Ph.D. graduates from the Department of Mathematics of Princeton University plus Junxin, among whom Junxin knew, there were many academic bulls who were dominating in a certain field of mathematics in later generations, so when they sat quietly in the audience, several people began to chat enthusiastically. What is also very special is that the chat of several people did not talk about academic things, but chatted about the gossip of various professors and teachers in the school, as well as exposing each other's embarrassment. Let Junxin can't help but be happy.

As one of the most important departments of Princeton University, the Department of Mathematics has undoubtedly a high level of gold in its graduates, let alone doctoral students. Therefore, when Junxin and the others heard the urging to go on stage, they also stopped their conversations in a timely manner, sorted out the doctor's uniforms on their bodies, put on their hats, and lined up on the high platform in turn.

The doctoral degree conferment ceremony at Princeton University has strict rules and regulations. First, before taking the stage, they confirmed their respective identities, and then walked up to the podium, where Professor Charles Feverman, chair of the Department of Mathematics at Princeton University, solemnly planted the tassel to the right, symbolizing the official conferment of the doctorate. Then, as the president of Princeton University, President William will personally present the doctoral certificate of the Department of Mathematics of Princeton University to every doctoral student on stage.

Junxin is the last Ph.D. in the Department of Mathematics, which has nothing to do with anything else, just because the letter is the first letter X at the end. In fact, European and American universities sometimes don't pay much attention to the finale.

However, Junxin's treatment was different from that of several other doctoral students, and as a world-class mathematician at a young age, Princeton could not afford to take it lightly. Professor Charles Feverman not only pinched Junxin's hat tassel, but also cordially shook hands with Junxin to congratulate him. And President William, knowing that he could not do anything, still invited Junxin to stay at Princeton University again in front of all the teachers and students of the school. Although Junxin was very touched by what Princeton had done for him, he finally politely refused Principal William's invitation.

When the disappointed President William handed over the doctoral certificate symbolizing the mathematics department of Princeton University into his hands, Junxin couldn't help but get excited. This is the most authoritative doctoral degree awarded by the most authoritative institution in the field of mathematics, just as MIT confers a doctorate degree on an engineer, which is the highest degree certificate in the industry. With this proof alone, even if Junxin doesn't even have a single thesis, he can still get an extremely advantageous teaching position in the mathematics department of other universities in the world.

More importantly, today's China is not like the future generations, the streets are full of returnees, and after returning to China, he will have the ability to get more resources and support. The only thing that can limit him is only a negligible seniority.