From university academician to chief academician

Time flies like water, and it’s April in the blink of an eye!

March and April are a very special period for universities across the country.

The postgraduate entrance examination is not a unified national examination, but each school independently determines the time and content of the re-examination.

Random time from mid-March to mid-April.

Moreover, the postgraduate examination time is not fixed for each school every year.

This year’s Zhonghu University postgraduate entrance exam re-examination will be in early April, on April 5th.

The postgraduate entrance examination re-examination is divided into written examination and interview.

The morning of the first day is a written test, and the morning of the second day is an interview.

April 6th, early morning!

Many students on campus are in a hurry, holding books or documents in their hands, reciting while walking on the road.

Ye Fei finished his run, took a shower and changed clothes. After breakfast, he walked slowly to the interview classroom with a thermos filled with hot water in his hand.

Ye Fei walked into one of the teaching buildings. He was going to interview candidates today.

In fact, the interview process does not necessarily require a mentor to interview.

But Ye Fei needed to select students he was satisfied with, so he had to go to the interview in person.

There were many candidates standing at the door of the teaching building, busy reciting things.

Ye Fei walked into the classroom and there were already four teachers inside.

Ye Fei smiled and greeted each other.

After sitting down, Ye Fei said to the person sitting next to him: "Dean, why are you here?"

The dean smiled and said: "I heard that your interview method today was very special. I wanted to come and see the excitement."

Ye Fei looked at the other three people, Lu Yishan, Liu Yisheng and Zhou Kang.

They are all old acquaintances of Ye Fei, and Lu Yishan is Ye Fei's mentor.

Liu Yisheng is a good friend of Lu Yishan. He once taught Ye Fei during his graduate studies.

Zhou Kang is a professor at the School of Computer Science. Ye Fei once worked with him in the computing laboratory of Zhonghu University, where Ye Fei created mathematical algorithms.

There are 46 examiners in the postgraduate entrance examination interviews, and there are three to four examiners in each interview location.

Lu Yishan said: "I heard that there are 152 students who want to choose you as their tutor this year. You can't interview every one of them. It will take a long time."

Each interview usually lasts twenty minutes, and all 152 people are interviewed, which takes at least fifty hours.

The interviews must be completed today, so it is impossible to interview all 152 people.

Ye Fei shook his head and said: "Of course not. My interview process is also divided into a written test and an interview. The written test is very short, half an hour. A small part is selected from the written test, and the interview is conducted from this small part."

Ye Fei looked at the dean and asked, "Dean, will my method work?"

Whether it is a preliminary test or an interview, there are rules and regulations for the postgraduate entrance examination, and few teachers will not follow the rules.

The dean smiled and said, "Just do whatever you want!"

The postgraduate entrance examination is not a unified national examination. To put it bluntly, it is up to each school to decide how to take the exam and what content to take.

Of course, there are usually three written exams for the preliminary exam, one written exam for the re-examination and an interview.

All schools follow this method and there are few changes.

Unless there are special circumstances.

For example, people like Ye Fei have special requirements.

"What should we do if we fail the written examination?" Liu Yisheng asked.

"Candidates who fail the written test will be distributed to other teachers, who will continue the interview."

Liu Yisheng said: "Have you told the other teachers about this?"

Ye Feidao: "I've already said hello, and they said it's okay."

All the interviewers had a group, and Ye Fei was among them. He had already said hello a few days ago.

At this time, some students in front of the teaching building were discussing with each other.

Lin Yi and Wang Yuan were among them, sitting together by the flower bed.

They didn't know each other, they just sat together.

Lin Yidao: "Classmate, which examination room are you from?"

Wang Yuandao: "201 Examination Room, where are you?"

Lin Yi said in shock: "You also chose Professor Ye?"

Before the re-examination, the school sent a message to all candidates who chose the mathematics department to collect information on who chose Professor Ye as their tutor.

After that, all students who choose Professor Ye as their tutor will be distributed in several classrooms to wait.

Therefore, students in the 201 examination room must choose Professor Ye as their tutor.

The postgraduate entrance examination process is that you first enter the classroom and wait, then draw lots to determine the order of the interview, and then go in for the interview.

Of course, this is a general process, and Ye Fei’s interview today will be different.

Wang Yuandao: "You too?"

"yes!"

In an instant, their eyes were different.

This is a competitor!

Professor Ye can recruit up to three students, but this year, 152 people chose Professor Ye as their mentor.

Alexander!

Lin Yi said: "What questions do you think Professor Ye will ask us soon?"

Wang Yuandao: "The process should be similar to the past. The whole process will be communicated in English and some random questions will be asked."

The interview in the postgraduate entrance examination re-examination follows the general process and is answered in English throughout. The instructor will ask some random questions.

Of course, some schools do not require English to be used throughout. This depends on the school's regulations and the instructor's arrangements.

Don't ask why you speak English, because English is an international language.

Most documents in the world are written in English, and all international conferences are also communicated in English.

If your English is not good, it is almost impossible to do well academically.

Unless you are a prophet and are born with a lot of academic knowledge in your head.

If not, if you want to develop in academia, you must be good at English.

Of course, students who can pass the exam will not be bad at English.

Lin Yi nodded, agreeing with Wang Yuan's statement.

Lin Yi asked: "Professor Ye said that talent is valued, but what do you think of talent?"

Wang Yuan shook his head and said: "Who knows, maybe Professor Ye has some special method. We only need to review the algebra at the undergraduate level. We don't need to worry about the rest, even if we worry about it, it's useless."

"This is Professor Ye interviewing us, not us interviewing Professor Ye."

Lin Yi nodded: "That's right."

He asked cautiously again: "How sure are you?"

Wang Yuandao: "I can't tell, I've prepared everything I need to prepare, what about you?"

Lin Yi said: "I should be more prepared than you. I personally asked Professor Ye what preparations I need to make."

Wang Yuan: "???"

It was obviously me who asked about it, but no postgraduate entrance examination students asked about it at that time. It was me who sent the message to the group after asking.

Wang Yuandao: "What is your ID in the group?"

"What's your ID?" Lin Yi said, "You tell me first."

"Little white dragon in the waves!"

Lin Yi widened his eyes in surprise and said, "Is this you, the little white dragon in the waves?"

Wang Yuan asked: "What's wrong? Is there any problem?"

Lin Yi said: "I am crazy about Xia Tou!"

"You are the one who is crazy about Xia Tou." Wang Yuan said in surprise: "The two of us interact often in the group!"

Lin Yi chuckled and said, "Yes, what a coincidence. We interact the most in the group, and now we are sitting together without knowing who the other person is."

Wang Yuandao: "Since you are crazy about Xia Tou, it's not you who asked Professor Ye. It was obviously me who asked."

Lin Yi said: "I asked about it a year ago. I asked about it a year earlier than you, so I prepared for the retest a year ago."

Wang Yuan: "..."

Wang Yuan's mentality was a bit explosive.

Lin Yi had prepared for the re-examination a year ago, which meant that Lin Yi was very sure of passing.

One of the three was removed, leaving only two.

If Professor Ye only accepts two graduate students, then one of the two will be removed, and only one will remain.

As far as Wang Yuan knows, there are 152 people who have chosen Professor Ye as their mentor.

2:151, or 1:151.

Wang Yuan instantly felt that the pressure in his heart was like a mountain, very heavy.

Lin Yi laughed in his heart. He went to ask Ye Fei, but he didn't get any information. He just asked him to go back and review.

Therefore, his starting point is the same as other candidates.

However, the interview not only tests the candidate's ability, but also tests the candidate's mentality.

If a candidate appears panicked during the interview, he or she is likely to make mistakes.

Lin Yixin said: "If I explode the mentality of one of my opponents, my interview passing rate will be higher."

At this time, a voice sounded on the radio, saying: "All candidates, please come in!"

All the students in front of the teaching building rushed into the teaching building and went to the waiting classroom according to their admission tickets.

The postgraduate entrance examination process is to wait in the waiting classroom first, then draw lots, and go to the interview according to the lottery number.

Of course, this is a general process, but it is different here at Ye Fei.

Soon after all the students entered the classroom and sat down, they saw a female teaching assistant walking in with papers in her hands.

"Huh?" All the students were confused: "Why are you holding the test paper without drawing lots?"

The female teaching assistant walked in and said, "Dear students, please pass out the papers."

After all the students got the papers, the female assistant said: "Please finish writing the contents of the papers within half an hour."

All the candidates looked down at the paper. There was only one question on the paper.

"One question for half an hour?" Many students were surprised: "Who are you looking down on? I can usually write half a paper in half an hour."

When they continued to watch, everyone was stunned.

What and what, no!

[For a given m, n∈Z≥0, let T be a set...]

The female teaching assistant looked at the students present and sighed in her heart: "I heard that there are 152 students who choose Professor Ye. This may be the tutor chosen by the most students in all universities in the past."

“I don’t know if there will be anything like it that will never happen again, but there will definitely be something that will never happen before.”

"Professor Ye is the only one who has this kind of treatment. Other teachers don't have this kind of treatment."

Half an hour passed quickly, and some students didn't even write a word. Most students wrote blindly even though they couldn't think of any ideas to solve the problem.

It's really too difficult. I know every word and even the words together, but I can't figure out the answer.

After writing and not handing in a blank, at least I have a psychological comfort.

And those students who didn't write had completely given up.

It’s so hard, I’m lying flat.

The female teaching assistant said: "All candidates please put down their pens and collect their papers now."

All the students put down their pens exhausted. This question was more tiring than finishing the entire paper.

When I usually write papers, although I may encounter problems that I don’t know, at least I can write most of the content on the paper.

But there was only one question today, and they racked their brains and couldn't come up with a solution.

If you don't know this question, you don't know the entire paper.

This is very painful.

After the female teaching assistant collected the papers, she said: "All candidates, please wait here."

After saying that, she entered another classroom with the paper and handed it to Ye Fei.

Ye Fei had received one hundred and fifty-two papers at this time. He distributed the papers to several people around him and said, "You can also help me sort through the papers and pick out the papers with written content."

"Okay!" Several people said.

In the end, more than 110 papers were picked out, and only more than 30 papers were blank.

After Ye Fei got the paper, he read a dozen of them in a row. He read very quickly and could tell whether the written content was correct after just a few glances.

Unfortunately, none of these dozens of papers have correct answers.

Ye Fei had already thought of this situation. He also came from his student days.

If you don’t know how to write the paper, just write blindly.

Anyway, as long as you write it down, you won’t hand in a blank paper, at least you will feel some psychological comfort.

One hundred and fifty-two papers were read in half an hour.

Ye Fei wrote down the names of ten people in the paper.

One hundred and fifty-two papers, only these ten people wrote correctly.

Ye Fei handed the names of these ten people to the female assistant teacher and said: "Call these ten people in one by one in order, and the rest can arrange interviews with other teachers."

"Okay, Professor Ye!"

After speaking, the female assistant teacher walked out and called the candidates in one by one.

"Ma Lintu, please come with me!"

A candidate walked in and was stunned for a moment when he saw the teacher present.

Why is the dean here too?

Professor Lu Yishan? Isn’t this Professor Ye’s mentor?

Professor Liu Yisheng? This is also a full professor of the School of Mathematics!

Isn’t Professor Zhou Kang from the School of Computer Science?

What is he doing to take the postgraduate entrance examination for mathematics major?

Ye Fei smiled and said: "This candidate, please sit down!"

Ma Lintu bowed quickly and said: "Hello teachers, my name is Ma Lintu."

After saying that, he sat down.

Ye Feidao: "This candidate, please briefly introduce yourself in English."

"OK!" Ma Lintu said: "My name is Ma Lintu..."

He quickly introduced himself briefly in English.

Ye Fei said in English: "The algebraic integral ring of the known number field K..."

"Please give a brief explanation and solution ideas on this issue."

While Ye Fei was talking, Ma Lintu wrote down what Ye Fei said with pen and paper.

After Ye Fei finished speaking, Ma Lintu looked at the recorded questions. After thinking for a moment, he said in English: "This is a question on Diophantus. In this case..."

After Ma Lintu finished speaking, Ye Fei said: "That's it. Your answer is finished, you can go out."

There was a trace of panic on Ma Lintu's face. There was only one question? Does this mean my interview failed?

Ye Fei smiled and said: "Don't be nervous, I only ask one question for all candidates."

The panic on Ma Lintu's face disappeared instantly. It turned out that it was not a failure, but Professor Ye's interview method.

Ma Lintu stood up and bowed: "Goodbye, teachers!"

After Ma Lintu went out, Professor Zhou Kang said: "You just asked one question? How about a few more questions? I think he answered it very well!"

As usual, the examiner will ask several questions.

Ye Feidao: "One question is enough. I can already see this candidate's talent in mathematics. What I need is quality, not quantity. It is useless to ask more questions."

The dean asked: "How is this candidate's mathematical talent?"

"It's not bad!" Ye Feidao said: "If you develop well, there is still something to be done in mathematics."

The dean nodded, took out his cell phone, and wrote down Ma Lintu's name.

Since Ye Fei said there is something he can do, he can focus on it, maybe he can cultivate an outstanding talent for the school.

Afterwards, Ye Fei interviewed five candidates, all of whom had good abilities and had certain talents in mathematics.

But there is still some distance between Ye Fei's psychological standards.

Ye Fei also knew that the candidates who could come to Zhonghu University to take the postgraduate entrance examination were not very outstanding from the national postgraduate entrance examination.

Excellent students will not come to Zhonghu University.

Therefore, Ye Fei did not set the psychological standards of candidates too high.

As long as you can understand your own literature and learn it in a short time, then you have met the standard.

If it couldn't even meet this standard, Ye Fei wouldn't accept it.

Even if none of the ten candidates today fail to meet the standard, then Ye Fei will not accept any of them.

Ye Feixin said: "I hope we can meet him, otherwise it will be difficult for the dean to explain here."

At this time, a square-faced and honest young man walked in. He was tall and strong and looked very honest.

Ye Fei saw a smile on the student's face, and he knew this student.

It was Lin Yi who came to his office more than a year ago to inquire about information about his postgraduate entrance examination.

"Hello teachers, my name is Lin Yi."

Ye Fei smiled and said: "This candidate, please sit down!"

After Lin Yi sat down, Ye Fei said: "Please give a brief self-introduction in English."

After Lin Yi introduced himself, Ye Feidao said: "Suppose K is a number field, and the elliptic curve E/K satisfies Gal(K(e[2]/K))..."

"Please give a brief explanation and solution to this problem."

Lin Yi wrote down what Ye Fei said with pen and paper, and after thinking for a moment, he said: "The element position is the real element position and..."

After hearing Lin Yi's words, Ye Fei's eyes lit up, he nodded slightly, and thought to himself: "If you can answer this question, you have a good talent in mathematics. Very good, he counts as one."

"I finally found one. I hope there will be another one. Then my mission will be completed."

Ye Fei's interviews are very fast. Generally, an interview with an examiner takes about twenty minutes, but with Ye Fei, an interview can be completed in about ten minutes.

After nearly two hours, the interview ended.

The dean asked: "Ye Fei, how are you? Which ones do you choose?"

Ye Feidao: "Just choose Lin Yi and Wang Yuan, these two students!"

It's strange to say that both students came to Ye Fei before.

But Ye Fei definitely didn't choose these two people because they came to him.

But these two people are the best among the ten and have the strongest mathematical talent.

"Only two?" the dean asked doubtfully, "I think the other students are also pretty good!"

Ye Fei shook his head and said: "The rest of them are not good enough, and their talents are not quite there. These two students are the best among the ten, and they just meet my requirements for talents."

"You also know that mathematics is the most talent-testing of all subjects."

"If they are less talented students, they may not be able to understand a lot of my research, let alone do research with me."

Everyone nodded, this is the truth.

For the postgraduate entrance examination, students choose tutors, and tutors also choose students.

Students who are not capable enough will not be able to do a lot of research done by their tutors.

If so, why choose them.

The dean asked: "Are the other eight people good at mathematics?"

Ye Fei nodded and said: "Yes, the other eight people have good talents."

The dean said: "Then I will assign them to the other instructors."