Chapter 327: School season

Chapter 327
Tsinghua University’s students who choose to stay on campus during the summer vacation are not too few.
After all, summer vacation is not like winter vacation. There is a day when you must rush home to reunite during the Spring Festival. Staying in school can have an excellent learning atmosphere.
In less than two months during the summer vacation, Cheng Nuo was as busy as the previous months, but it was hard to say that there were a few days free.
Cross-school cooperation and exchange of topics, proof of weak BSD conjecture.
These two things accounted for almost 70% of Cheng Nuo's daily time except eating and sleeping, so he could only play a few dishes of the king, eat chicken, and relax.
Everything is going on in such a steady and progressive way.
…………
The summer is hot. Kyoto in summer is really not a place for people to stay.
Cheng Nuo, who was supposed to be at the beach at this time, blowing the cool sea breeze, but facing the big sun, holding a bottle of iced drink in one hand, and wiping the sweat dripping from his forehead with the other, walked into the Peking University. Innovation practice base.
In the office specially assigned to Cheng Nuo, all four members of the research team are there.
"Cheng Nuo, you are here, I thought you had a heat stroke halfway down the road!" Sheng Fei smiled and walked forward.
"Our Kyoto side is pretty good, you go to Jinling to feel it, it will definitely make you doubt that your life is permanent." Yang Xiao also came to interrupt.
After half a month's running-in period, the five people have become acquainted with each other.
The attitude of several people towards Cheng Nuo is not the kind of contempt at the beginning, but an equal attitude with them, or...higher!
Judging from the surprising performance of Cheng Nuo during this period, Cheng Nuo's image in their minds is totally elevated.
What's more, Cheng Nuo is less than twenty years old now!
Future achievements are unpredictable!
Even the Wei Jun, who had some trouble with Cheng Nuo before, had to say "convinced" to Cheng Nuo at this age.
"I heard that Sister Yi Ge is in trouble, I'll come and take a look." Cheng Nuo asked while taking the wet wipes that Sheng Fei handed over.
In the past few days, there was no research work of Cheng Nuo in the research plan of the research group. No, I heard that Senior Sister Yi Ge had some problems with the subject. Cheng Nuo, who had just bought a watermelon in the dormitory to relieve her heat, was called here urgently.
Sister Yi Ge walked out a little embarrassed at this time and stood in front of Cheng Nuo, her voice soft and weak, and apologized, "Cheng Nuo, sorry, it's so hot, let us come over."
"Sister Yi Ge, it's okay." Cheng Nuo smiled, "It's not far, just a few steps away."
"By the way, what the can't you solve?" Cheng Nuo asked curiously.
Sheng Fei reluctantly spread his hands, "Our four areas involved are all biased towards geometry, or we won't be called up here."
"The problem encountered by Yi Ge belongs to the linear calculation of combinatorics, and we can't help it."
"So, call you, a math all-rounder, to see if there is any way."
Sheng Fei briefly told Cheng Nuo what happened.
Cheng Nuo nodded, expressed understanding, and asked, "What about the specific problem?"
"Here." Sheng Fei led Cheng Nuo to a desk.
And that desk has been used by Yi Ge all this time.
"Yi Ge, you can tell Cheng Nuo briefly." Sheng Fei said.
Yi Ge nodded solemnly, leaned down, opened a document on the computer, stroked the hair in his ear, and said, "I am in charge of researching the theorem of integrable symplectic mapping."
"According to Cheng Nuo, logically, we should derive four equations related to integrable symplectic mapping. The first two theorems are fairly simple, and they can be derived with only a few simple logical formula steps."
"But the third theorem is to use Lax to express a L(λ)D(λ)=?(λ)∑φ^2. In this process, some knowledge of combinatorial mathematics must be used to get the conclusion smoothly. "
"Is this here?" Cheng Nuo glanced briefly and pointed to a line in the document.
"Yes, that's it. From formula 2 to formula 3, I don't understand the specific derivation steps." Yi Ge chick nodded like a peck.
Cheng Nuo turned around, pulled a chair, sat on a blank desk next to him, stretched out his hand,
"Paper, pen!"
Yi Ge graciously handed out paper and pen to Cheng Nuo.
"Don't bother me." After saying this, Cheng Nuo lowered his head, and scribbled the calculations on the paper.
【Α=﹤?φ1,φ1﹥(2﹤φ1,φ2﹥-1)/﹤?^(-1)φ1,φ1,……Direct calculation:∑dφ1j∧dφ2j=∑nj……】
five minutes later……
Click!
Cheng Nuo closed his pen cap, picked up the A4-size draft paper on both sides, and handed it to Yi Ge behind him.
"This is the derivation step, take it!"
After speaking, Cheng Nuo sorted out his clothes, waved, and left the office without looking back, leaving everyone with a handsome back.
Downstairs, Cheng Nuo, who walked out of the building in an extremely handsome posture, was stunned by the heat wave on his face.
Sister, I knew I would stay in the air-conditioned room for a while before I came out. This is when the sun is the most poisonous.
No way, he had to finish pretending to be forced to pretend. Under the high temperature close to forty degrees, Cheng Nuo walked back to the dormitory while wiping his sweat.
…………
After Nuo's pretending performance in the office, Cheng Nuo's leading role among the five people gradually became apparent.
The progress of the subject has been soaring at a speed visible to the naked eye.
On August 23rd, Cheng Nuo opened his sophomore fall semester. If nothing else, it was also his last fall semester in the undergraduate stage.
Because, in less than a year, he will get the undergraduate diploma and the mathematics degree certificate, bid farewell to the undergraduate career.
Courses, of course, are as tense as always.
However, ~EbookFREE.me~ was busy, and Cheng Nuo still looked for a chance to participate in the orientation work for freshmen on the first day of school.
Looking at the immature faces, full of longing and yearning for the university, Cheng Nuo stepped into the campus and couldn't help but yell:
"What a great old man has finally become a senior!"
After being a student of others for a year, Cheng Nuo finally had the opportunity to call others a student!
At the same time, the welfare of seniors is more than just these.
In the competition for freshman students, those of them who have been in school for a year have a lot more advantages than those newbies.
School girl, it's ours!
Senior, ours!
Junior brother, also ours! ! !
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