Chapter 39: I am your father

"Everyone, the basic knowledge has been taught almost enough, and we will start to carry out some truly challenging content later.

Today's class ends here, if you have any questions, please feel free to ask."

Handing over the recording of "Watching from the sidelines" entirely to Meng Xiaodong, although the other party repeatedly said not to want remuneration, Lin Ran insisted on giving it, and the next day he continued to teach the students of the University of Xiangjiang as usual.

Only eight people were left in the large tiered classroom, and six more left one after another later.

Among the remaining eight people, those who could persist were on the one hand a bit of mathematical talent, and on the other hand, they also wanted to get something from Lin Ran.

There is Chen Jingrun from Cultural Huaguo, and naturally there are students representing England.

In addition to this purpose, there are also those who hope to continue their studies in the field of mathematics, hoping to be favored by the other party to read the other party's doctorate after persisting for a summer vacation and finishing the seminar here.

Or get a recommendation letter from Lin Ran.

For the current mathematical desert like Xiangjiang, being able to get Lin Ran's recommendation letter means being able to apply to top famous schools.

Li Shaoyuan, a descendant of a Xiangjiang tycoon, naturally doesn't care about Lin Ran's recommendation letter; they can find Justices of the Peace or even English local nobles to help write recommendation letters.

But for students from middle-class or even ordinary wealthy families, Lin Ran is already the best connection they can come into contact with.

Lin Ran's recommendation letter is not only useful in the field of mathematics; hot majors such as economics and finance are also useful.

The only ones present who truly care about mathematics itself may be Chen Jingrun.

But after experiencing the turmoil of these few days, Chen Jingrun is also a bit absent-minded.

Yesterday morning, while he was sleeping soundly in the tin house in Sham Shui Po, there was a knock on the door outside:

"Open the door, I am your father!"

Chen Jingrun was a bit dazed for a while, thinking that he hadn't rested for a moment during this period, and his spirit was dazed and there was a problem.

When did he have a father pop out.

But after a while, he reacted, combined with the voice outside, one of the most impossible situations in the previous training happened.

Chen Jingrun hurriedly got up and opened the door, and sure enough, as he expected, standing outside was Section Chief Zhang, who looked ten years older than when he was in Yangcheng.

"Father..." Chen Jingrun's voice was dry, "Why are you here."

"There is no way if I don't come, I have to come to work, it's not easy to find work in To Kwa Wan, the factory closed down before, and the workers' dormitory didn't let me live, I walked over overnight, if I don't work, I won't have food to eat." Section Chief Zhang signaled to go in and talk.

"Watching from the sidelines" was passed back by Zhang Shizhao, including Lin Ran's broadcast of this song when accepting an interview with Xiangjiang Radio, making the other side of the river realize that it was almost impossible to persuade Lin Ran to return to the country.

Then the entire strategy has to change.

And Section Chief Zhang's arrival is the most direct manifestation of the strategy change.

On the surface, they are talking about the topic of coming here to work.

"Compared to Sham Shui Po and To Kwa Wan, there are indeed many plastic factories and textile factories, those are recruiting workers recently, father, you can go and try..."

In fact, they are talking with paper and pen:

"Your task has changed, what you need to do is see if you can stay by Lin's side and become his student.

If not, see if you can settle for the next best thing and go to the Department of Mathematics of Columbia University to study for a doctorate."

"What if it still doesn't work?"

"If it still doesn't work, then wait for an opportunity.

In addition, what you need to do on the one hand is to continue to crack Lin's mathematical model; these are some materials related to missiles, maybe they will be helpful to you, look at them as soon as possible, and destroy all of them after reading them.

Later, you only need to hand over the materials in your hand to me."

Chen Jingrun, who was originally going to go back to continue working after receiving training in Xiangjiang, not only changed his task, but even his life took a 180-degree turn.

Chen Jingrun, who stayed up all night reading materials last night and had a father out of thin air, could persist in not falling on the desk, and could barely keep up with the content Lin Ran taught, which was already not easy.

"Professor Lin, regarding how harmonic analysis and..."

"Professor Lin, the more stringent spectral conditions of the densely defined closed operator you mentioned here..."

Chen Jingrun persisted until the end, and finally obtained the only opportunity to talk directly with Lin Ran in a situation where no one was around after coming to Lin Ran's seminar.

"What you asked is actually about the definition of holomorphic semigroups, which should be considered the most cutting-edge content. Not long ago, Langlands systematically analyzed its generation and analytical properties in his paper titled "Some Holomorphic Semi-Groups."

Holomorphic semigroups can be regarded as a type of mapping from an open region of the complex plane to a Banach algebra, which mainly satisfies two properties: semigroup property and holomorphicity..." Lin Ran said.

With such content, it is no wonder that other students would leave the classroom; if you don't understand, staying here is not the way.

And for the people from England, one person staying in the classroom seems too abrupt.

At the end, seeing that Lin Ran didn't take the initiative to mention it, Chen Jingrun thought that today's communication was limited to the academic level.

However, today's meeting obviously didn't end here; Lin Ran took out a thick stack of magazines from his briefcase:

"Dehui, this is the "Journal of Applied Mathematics and Physics" published by the American Society for Industrial and Applied Mathematics in the past five years. You can take it and look at it. I think it will be more helpful for you to understand these contents."

This is the real meat of today.

After Lin Ran finished speaking, after handing over the magazine, Chen Jingrun took it and only felt his hand sink, and only heard Professor Lin continue to whisper fiercely in his ear:

"Remember! 56-6-12, 58-10-3, 59-1-3, these three papers combined with your own can also research the Monte Carlo method!"

After speaking, Lin Ran returned to his previous sitting posture, sitting in front of the podium, smiling and asking: "Does Dehui have any other questions?"

Chen Jingrun was dazed: "No, no more." His brain was concentrating on remembering what the other party just said.

That's right, Lin Ran came to Xiangjiang this time, and never thought of just solving one or two problems; what he wanted to do was to leave a spark for Cultural Huaguo, even if it was a little bit.

Soon Cultural Huaguo will completely stagnate in academic exchanges with the outside world.

This stagnation is not only the stagnation of people's exchanges, but even academic journals have stagnated.

France does not allow overseas Chinese to transport "Nature" and "Science" magazines to Cultural Huaguo.

Xiangjiang alone prevented more than 13,000 academic journals from entering Cultural Huaguo in 1963.

In the first five years of the entire 1960s, 42 overseas Chinese were prosecuted for transmitting technical data to the East.

Just this year, the Soviet Russia "International Science Abstracts" will stop supplying, and Cultural Huaguo will lose the last path to systematically contact Western cutting-edge science-related content.

This is an external factor; external factors may increase the difficulty of your acquisition, but internal factors are what truly cause you not to take the initiative to acquire it.

Also this year, just this year, the Foreign Languages Compilation Bureau was dissolved, and there will only be seven people left responsible for the translation of English science and technology articles.

So what Lin Ran wants to do is to leave even a little spark. ===== CHAPTER 40 =====