Standing at the back door of the classroom, hiding most of his body behind the wall, listening to the arguments, persuasion, and heckles in the classroom... Ning Zi suddenly understood the tiredness and distress of his former class teacher. The professors of this year are not very

Easy to carry.

There were quarrels every day, even in the third class of the first semester. Ning Zi didn't dare to think about what would happen next. People's hearts were wandering, and the academic style was not ancient...

Ning Zi was thinking about whether she should turn around and leave, but she happened to be seen by Fang Xu, who had been paying attention outside the classroom.

Professor Fang was obviously a wonderful person. He did not alert the two old academicians who were still confronting each other in the classroom, and simply walked out of the back door quietly.

"Xiao Ning, here you go."

How to call Ning Zi can be said to be the most confusing thing for Fang Xu.

"Classmate Ning" is hard to pronounce. In fact, Fang Xu has never seen Ning Zi as a student since that day. Professor Ning is definitely not accurate. After all, Ning Zi does not have the title of professor.

, in the end I could only take advantage of my age and call her "Xiao Ning" affectionately.

"Well, today's situation...whose idea was it?" Ning Zi pointed at the already full classroom and asked.

Fang Xu blushed slightly. After all, he was an academic and was not that thick-skinned. He could only explain awkwardly: "I saw that Mr. Lu's students all benefited a lot from the last class, so everyone also wanted to make themselves better."

Students come to see the world."

He could barely explain it, but facing Ning Zhe's clear gaze, Fang Xu's face turned even redder and he murmured: "I'll go talk to the two old academicians and ask them to stop arguing."

"No rush." ​​Ning Zi shook her head.

The two old academicians were in the middle of an argument, so it would be unsightly to disturb other people's enjoyment.

Seeing that Fang Xu didn't understand, Ning Zi still explained: "There are not many opportunities to listen to academicians quarreling live, so let everyone see more of the world."

This wave of explanations is enough to prove that Ning Ju was still somewhat affected by March...

Of course this is understandable.

After all, one person and one cat get along with each other day and night.

Only Fang Xu was more embarrassed.

"It delayed class..."

"The bell doesn't ring until ten past two, there are still 13 minutes left."

…

My heart is so tired.

Speaking of which, Fang Xu didn't directly remind the two academicians just now because there were too many people in the classroom today.

But now it seemed to Fang Xu that he might as well just go up and remind the two academicians, rather than step out and explain to Ning Zi.

Fortunately, before he could think of how to respond, Ning Zi took the initiative and asked: "By the way, Professor Fang, my cousin often mentioned you when chatting with me recently. She also said she planned to take the postgraduate entrance examination. Was it you who encouraged her?

"

"Forehead?"

Fang Xu was stunned for a moment, and then answered truthfully: "When we were walking together in the evening, she said that there are not many things to do in the library now, and there is a lot of time available every day, so I suggested that being idle is idle anyway, so why not

Learn about various subjects in the library and try to take the postgraduate entrance examination if you are interested in it."

"Oh." Ning Zi nodded, then stared at Fang Xu and asked, "Let's take a walk at night? Occasionally? Often?"

Fang Xu replied with some embarrassment: "Only in the recent period."

Ning Zi curiously asked: "Professor Fang, how old are you this year?"

"31."

"Not married yet."

"No, I only graduated with a Ph.D. at 26, and I have been engaged in academic research since then without thinking about personal issues. I started as a teaching assistant at Yanbei University and am now an associate professor. The academic pressure is also very high."

"You graduated with a doctorate at 26?"

"Well, I used to skip grades. In my sophomore year of high school, I signed up for the Yanbei Mathematics Talent Class. I was only 16 years old at the time, and then I signed up for a bachelor's, master's and doctoral program. It took me ten years to graduate, which is not a short period of time."

Ning Zi blinked, roughly understanding the growth process of an academic professor like Fang Xu.

He is a sure winner in life, and has basically not made any detours. He has become a university professor as soon as he continues his studies, which is so stable that countless people envy him.

“You never chose to study abroad?”

"Well, Yanbei signed an exchange program with Harvard at that time and went to Harvard as an exchange student for a year. He never went out after he came back."

"Oh." Ning Zi nodded and commented: "Well, Harvard's School of Mathematics is just like that."

"Uh..." Fang Xu opened his mouth, but in the end he didn't say anything to refute. After all, Ning Zi did have the qualifications to say this. In fact, as far as the current situation is concerned, Ning Zi would replace Harvard with any school.

All well-known universities can probably say it with confidence.

"But Professor Duncan's level is still pretty good. You can communicate more with him." Ning Zi added.

"I know this. Professor Duncan has always been known for his contributions in many fields in the academic world." Fang Xu nodded in agreement.

Ning Zi actually thinks that this young professor is not bad, but a bit too honest.

It’s like when the results were made not long ago, they didn’t dare to publish the paper. They had to ask Ning Zi to publish the paper first and put it in a journal before he dared to quote it directly.

In fact, if Fang Xu directly proved those mathematical tools in his paper at that time, Ning Zi wouldn't have cared too much about it, but now he probably won't look down on this mathematics professor.

"Well, so what?" Ning Zi asked.

"Ah? So what?" Fang Xu was slightly stunned.

Ning Zi glanced at Fang Xu and said, "Let Dominit go to Yanbei University to teach temporarily, just to let him get used to teaching in China. After a year, he will be a professor in the Department of Mathematics of the University of Physical Education. I want to learn more from him."

Of course, you need to come to the University for communication.”

"Ah?" Fang Xu was stunned.

Ning Zi nodded firmly and said, "Well, if you want to come and the school won't let you go, I can help you. In the future, sports will be the cradle of China's top mathematicians, so seize this opportunity."

Then, regardless of the Yanbei mathematics professor who lost his mind because of these words, Ning Zi walked directly into the classroom through the back door.

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Although he kept chatting with Fang Xu, he was also paying attention to the confrontation in the classroom.

In fact, the two old academicians had almost finished their quarrel at this moment, at least they had separated. Lu Zhengyue could be said to have won completely, but Fan Zhenhua ignored him and he couldn't drive them away.

The two old academicians stopped arguing. When Ning Zi walked into the classroom, everyone's eyes naturally focused on him.

Even people who have never seen Ning Ju can recognize him immediately.

After all, young and handsome people are always more recognizable.

The classroom also became quiet at this moment.

"Where should I sit?" Ning Zi looked around the classroom and asked calmly.

Everyone was stunned, and suddenly a smart guy sitting in the front row picked up a stool and put it on the podium. This is why when we first chose the classroom, in order to facilitate everyone's communication, we did not choose a classroom with tables and chairs fixed on the ground.

.

Lu Zhengyue raised his eyebrows.

Fan Zhenhua on the other side opened his mouth, but finally said nothing.

Ning Zi thought for a while, then walked to the podium and sat down.

The music for the class happened to be playing.

Ning Zi sat on the podium, waiting for the music to finish, then looked around the classroom, and after being silent for a long time, he said: "I have a slight social anxiety, and I don't like closed places with too many people, so the classroom door is closed

It won’t be closed anymore.”

"In addition, if you are not a mathematics professor or lecturer from our school or Yanbei University who participates in the mathematics class of the Sports University every Friday, please consciously pay the tuition fee of 8,000 yuan to the finance department of our school. Forget it today, please present the payment voucher provided by the finance department of the University in the future.

Listen in. If you have any questions, you can ask them."

There was silence in the classroom for a moment, and then quickly countless hands were raised.

…

At ten past five, get out of class ends on time.

Most of them left quickly and wisely. In fact, some people wanted to stay and it would be good to ask one or two more questions. However, the professors who brought them here were still sensible. After a few words of urging, they took their students with them.

Gone.

Fan Zhenhua, Lu Zhengyue and a limited number of professors stayed.

In the three hours of today's math class, except for a ten-minute restroom break, Ning Zi answered a total of 17 math questions. Obviously, most of them were problems encountered in the process of writing a paper.

There are even some questions that the questioners probably never expected to get answers in class. After asking the question, I felt embarrassed and said that because this research direction is relatively biased, if Ning Zi has not studied it before, he can discuss it after class.

.

Ning Zi's answer was also very simple. I definitely didn't have time to discuss it after class, so I solved it directly in class.

Of course, at this level, the so-called answer to a problem does not mean directly solving the problem, but giving an idea to solve the problem.

For example, a question raised by a doctor from Yanbei University was about proving the uniqueness of commutative subspaces of Lie algebra complex conjugate maps. After thinking about it for a moment, Ning Jie came up with the idea of ​​proving the equivalence relationship through quadratic projection, and then inducing the uniqueness.

suggestion.

The total time from asking to explaining took about ten minutes, but this doctoral student in mathematics from Yanbei University suddenly realized it. After sitting down, he picked up a pen and paper and started working hard...
To be continued...