As soon as Junxin's words fell, a burst of applause rang out. Although the expertise in the report is only a mathematical model, it is understandable from the perspective of Junxin who has repeatedly emphasized that he is a mathematician.

Junxin was also relieved, because the time of the report was directly compressed from one and a half hours to about an hour, and the rest had nearly two hours to ask questions.

"Alright, ladies and gentlemen, let's move on to the questions. Please feel free to ask any questions and I will be happy to answer them! ”

With a "bang", more than half of the scientists in the entire lecture hall raised their hands. Junxin looked at it, and then said with a smile: "There is still plenty of time, so let's leave our first question to my assistant during this time, Ms. Laura Jennifer, to thank him for taking care and helping me during this time." Thank you! ”

Jennifer raised her hand as well, but she actually knew that she had little chance of being selected to ask questions, so she didn't hold out much hope. When I heard that the first question was my own, I stood up blankly and excitedly and asked, "May I ask you, sir... You've achieved so much in chemistry, why don't you stay and specialize in chemistry? ”

The excitement in Jennifer's tone Jun Xin heard it clearly, although he was stunned for a moment that Jennifer's question had nothing to do with quasicrystals, but Jun Xin didn't care too much and replied: "That's because my talent in mathematics is slightly higher than in chemistry." After a pause, Junxin ignored the following discussion scene because of his answer, and continued, "If you have friends here who are proficient in mathematics, then you should have seen my paper solving the Modell conjecture in the Annals of Mathematics published in November last year, which is one of my more important achievements in mathematical research, although I dare not say that this achievement has surpassed quasicrystal, but it is also a major breakthrough in the field of number theory and algebraic geometry. So I think I'm still quite talented in math. Thanks, next! ”

Professor Cheng of Taishan Beidou in the Chinese chemistry community naturally discussed this question with Junxin, so Junxin is familiar with answering this question.

"I would like to ask a question from Professor Trenon from Harvard University."

As soon as the words fell, an elderly man who had almost lost all of his hair stood up and asked, "May I ask Mr. Junxin, what you just said ........., then I want to ask how you would classify it if it were you?" ”

"As I mentioned earlier, the question of classification is still too early, because the quasicrystals have not been studied enough. However, if I want to classify it from a mathematical point of view, I have two ways or two directions. ”

"The first method is to classify by dimensional methods, which are simply divided into one-dimensional quasicrystals, two-dimensional quasicrystals, and three-dimensional quasicrystals. The one-dimensional quasi-crystal is arranged in a linear way, while the two-dimensional plane presents a periodic distribution in the vertical direction, and I think its periodic characteristics should be similar to the Fibonacci number, that is, close to the golden section point. ”

"Two-dimensional structure ......, three-dimensional structure ......"

"The second way is to solve this problem with Galois's group theory in number theory, as I just said, there is no strict mathematical group representation table in current crystallography, so I studied and calculated the first draft of a crystal table by myself, in which, because of the special calculation method and definition of groups, it is actually a very interesting method to classify by the method of point groups."

"So what's the difference or advantage between the two methods?" Trenon continued to ask.

"There is a difference in nature, the first method is to completely separate the quasicrystals and computulate and study them as a new material structure. In this way, its mathematical model and molecular dynamics simulation correspond to a completely independent research method, which is completely separate from the traditional crystallography that is now in use. The second method is based on group theory, which actually includes the study of quasicrystals and crystalline structures, in which there is no difference between quasicrystals and crystals, they are a whole. The difference is that the sub-parent groups of quasicrystals may be slightly different. However, this seems to be the difference between irregular crystals such as monoclinic and other regular crystals. ”

"Thank you!" Trenon sat down, though he still had a lot of questions to ask, but it couldn't take up too much time.

"Professor Davies from Trinity College, University of Cambridge, UK, please."

"Hello, Mr. Junxin. My question is the appearance of quasicrystals, what effect does it have on those previous amorphous structures? ”

"Thank you for your question, first of all, I want to say that quasicrystals are a kind of substance between crystals and amorphous, and liquid crystals are ......, and ...... between the two, in the future, people will gradually focus on amorphous substances, because compared with our familiarity with crystals, there is no good understanding of amorphous substances."

"Thank you!"

"Professor Henry of Princeton University, please."

"Hello, my question is what is your positioning of the crystal? Is he a crystal, or is he not a crystal? ”

"Hello, Professor. I think we'll see you again soon. Junxin did not answer this question directly, but brought up another topic, "I am an exchange student of Princeton University and Mizuki University this year, and I will stay on the campus of Princeton University for a year. Unfortunately, I am not a chemistry student, but a mathematics student. ”

"Oh, that's great, but with a student like you, the math colleagues are under pressure." Speaking of this, Professor Henry said a little funny, "I heard that more than a dozen of their professors, and they also called Yau Chengtong and others from Harvard, who were specially compiling a textbook for a summer vacation, could it be for you?" ”

"Haha, how can I have such a big face. Okay, without further ado, let's get into the nitty-gritty, I don't think the localization of quasicrystals should be defined so quickly, because we haven't done much research yet, although there are a lot of ways to do it......"

With the passage of time, Junxin seems to be more and more free, facing one by one professors or difficulties, or asking for advice, or pure academic arguments, or ill-intentioned secret traps, Junxin jumped over one after another.

What he didn't know or didn't care about was that at the back of the classroom, a camera and a few reporters with CBC license plates completely recorded the scene of Junxin's swaying freely.