Chapter 176: Undercurrent

June 30, the defense day, graduation ceremony.
Lin Chaoxi is already ready.
She picked up the backpack and checked the u disk and the charging treasure.
The schedule has already reached the last day. In the morning, she will go to Yongchuan University to make a modeling contest and return to the school to attend the graduation ceremony in the afternoon.
After the phone call that day, Lin did not confess to the day.
Although she wanted to put down the phone and rushed to the top of the mountain, she told her all her wishes, but she did not.
Perhaps it is too much to think about, or maybe she has just listened to all the past, and her admiration is better than love.
So after thinking about it, she thought it was a very appropriate moment before she left.
She opened WeChat, and she had a small group with Yu Zhi, Lu Zhihao, Shen Mei and Hana. In the group, Lu Zhihao was confirming her schedule with her.
Lu Zhihao - What time is your reply?
Lin dynasty - look at the arrangement, it should be completed before 11 o'clock.
Lu Zhihao - Then I will go to the mathematics department downstairs to wait for you, go to your school to attend the graduation ceremony, and then we will send the trip to the airport, is this arrangement?
Lin dynasty - yes!
After she replied, she took the phone and went to the living room to find out that there was no breakfast today.
Mr. Lao Lin is very difficult to wear clothes other than the old-fashioned shirt, short-sleeved shirt with trousers, although straight male, but also looks quite formal.
Lin Zhaoxi: "Dad, are you going to blind date today?"
Mr. Lao Lin was taking medicine in the kitchen, and he almost got it.
"Cough" Lao Lin snorted: "Good chat."
"Why are you wearing so good today?"
"I am going to the company today."
Lin Xiaoxi laughed: "Is your company a new good-looking aunt?"
Lao Lin suddenly became serious: "Lin Zhaoxi, is there a connection between dressing well and going to love?"
"Is there still?"
"Why are you dressed like a boy today, don't you give it away?"
Lin Zhaoxi: "..."
It’s impossible to win with Lao Lin’s bickering. It’s impossible in this life.
Lin Chaoxi took the bag and left, but did not take two steps, she suddenly remembered something, stopped, turned and looked at Lao Lin: "Dad."
"how?"
"Today is my graduation ceremony. Are you wearing this for this, but..."
But you have forgotten it yourself.

On the bus, Lin Chaoxi pulled the ring, and Comrade Lao Lin sat in the chair by the window.
These days are very hot, high-rise buildings outside the window, the glass curtain wall reflects the glare of the sun.
The old forest used a folding fan to cover the sunlight outside the window, and it looked very delicate.
"I am not interested in your graduation ceremony." Lao Lin is still swearing at the problem she had just left the door. "Your old father, although he is demented in old age, will use the agenda and have not yet forgotten the daughter's graduation ceremony."

Lin Zhaoxi: "..."
"Of course, even if I really forget, I won't admit it."
Lin Xixi looked out the window and pretended not to hear what he was saying.
The bus just passed through Hongzhuang New Village, which was where she and Bao Xiaomeng lived. No matter how fast the society advances, it seems that the city near Yongchuan Old Town has not changed.
Narrow street, historic university campus. The bus is slow and long. After several universities, occasionally there are students who look like they get on and off.
They are reading books, carrying words, chatting, and getting Lin Xi’s wish to take out books and learn.
The place where Laolin worked was at the station in the old campus of Sanwei University. He stood up and prepared to get off.
Lin Zhaoxi looked into the distance, still familiar with the school gate, the grassy campus, and the distant library faintly stood.
Lao Lin patted her on the shoulder: "Thank you for the kind girl who gave me the seat, you can sit now."
He liked to play this kind of repertoire. Lin looked at his father's face and looked back from the distant Sanwei University Library. The question blurted out: "Dad, which university did you graduate from?"
Lao Lin pulled the railing and got ready to get off the bus. He suddenly blinked: "Have you heard of ‘dedication’?

‘One page, is there a university?

Lao Lin suddenly despaired: "Lin Zhaoxi, I hope that while you are studying mathematics, you can improve your language level."
Lin Chaoxi only reacted to what the old Lin said, and she stopped. Although incredible, it seems to explain the fact that there is no Laolin name in the Sanwei University graduation book.
"But you have to work from a specific school..."
"I don't remember, I am a dementia patient." Lao Lin is strong and strong.
The bus stopped and the back door opened. Lao Lin took his hands off the bus.
Lin Chaoxi was silent and did not ask anything.
Alzheimer's patients like Lao Lin will forget about recent events, but their long-term memory should be very clear.
Really don't remember?
She is not clear.

From the old campus of Sanwei University to the old campus of Yongchuan University, there are several bus stops.
All the way in the past, the road is very clean.
Because of the modern university town built in the suburbs, the number of students in the old city is getting smaller and smaller. But even so, the old university district headed by Sanwei University and Yongchuan University is still a famous research center in the country.
There are many national research institutes here, and many older professors are not willing to leave.
The bus stopped at Yongchuan University Station.
I got off at the dawn of Lin, and walked under the iconic white marble archway of Yongchuan University.
Yongchuan University is bigger than Sanwei University, and there is a big lake in the school. Speaking of it, she only had the opportunity to attend a lecture near the world of cheese in the world of cheese, and then I have never heard of it.
So when she walked into the campus with confidence, she began to get lost. As a last resort, she opened a navigation and finally found the location of the reply on the notice.
It is a red brick building shaded by vines. It looks like some years and should belong to the Department of Mathematics.
Lao Wang and A Guang arrived early, and when they saw her, they were very nervous.
"Apprentice, have you brought it with you?"
"Take it." Lin is very strange.
"That's good, Ah Guang forgot!" Lao Wang Shabu, "So you let us bring a spare u disk is actually useless, because we can't rely on it!"
"Yes, this time we will rely on you to take the lie!"
Lin Zhaoxi remembered the warning of the sly, looked up at the cold red brick building in front of him, and felt a future uncertain.

The preparation room is on the 3rd floor and the defense meeting is on the 4th floor.
Each group has a corresponding number, and students have already entered the session in advance to reply. There are people inside and outside the walkway, but it is very quiet.
The group of students who participated in the modeling contest and were promoted to the national first prize by Sanwei University also arrived early. Lin Chaoxi and Laowang Aguang went over and wanted to say hello to the group of students.
But both of them looked at each other and looked at each other's clothes and stood in the same place.
The opposite classmates wore suits and ties, like going to a formal company interview. Girls even wore black high heels, which looked very formal and professional.
On the other hand, they are here, all in one t-shirt beach pants. The slippers on the feet of Ai Guang, the king of the Lin Dynasty, compared with the other, the three of them are like going to the beach to sell fish.
"How do you wear this?" asked the opposite classmate.
"How do you wear this?"
"Rely, the Department of Mathematics of Yongchuan University and us are dead, and we must not dress well here to glory for our school?"
Lao Wang also said that after the meeting, he said: "You are a bit reasonable, I am negligent."
"Do you really believe?" Another boy opposite was speechless. "The defense is to wear a formal dress to give the teacher a good impression. And the teacher who presided over the reply is Yongchuan University. It is very strict. We can leave a sloppy handle. Do not stay."
Lin sighed slightly, and always felt that no matter what the students or other students, they got the gossip from somewhere.
She doesn't know where the rumors start, but in any case, they seem to only be good at themselves.
She pulled over Pharaoh and Aguang, prepared to find a quiet corner, and they had a pair of points to answer and what they were responsible for.
At this time, a team of students who had just completed the reply went down from the 4th floor, which happened to be the classmates who won the national first prize in their school.
Lin Chaoxi wanted to get together to ask the situation, but suddenly settled.
The girl in the reply team cried on the stairs. Lin met with Li Ran. The other boys also looked red-faced and seemed very angry.
All around are curious eyes.
Lin Xiangxi thought about it. When the girl walked down the stairs, she took the person to the corner and handed out a paper towel to make the girl wipe her tears. But the girl hugged her directly, her head against her shoulder, and she cried in a low voice, very sad.
"What's wrong?" After a while, Lin whispered.
"The teacher who presided over the defense felt like we were targeting us." The boy said.
"How come, what did the teacher ask?"
"In any case, they feel that the paper is not made by ourselves and asks a lot of questions."
Lin Chaoxi frowned.
In fact, she also checked some information. The first prize of the national first prize and the graduation thesis are different. The primary point of the teacher's examination is whether the paper really comes from the student himself.
"Li Ran is too nervous. When the teacher asked the model formula to be deduced, she didn't answer it. I have to help answer, the teacher said that she must let her say, and said that the country is not so good."
Hearing here, Lin sang took Li Ran’s shoulder and comforted her.
"I don't know if it's right, isn't there a unified paper number, and the teacher doesn't know you?" asked the girl from the other group next to him.
"I know." Just then, Li Ran straightened up, and Lin’s shoulder was a piece of eye shadow and mascara that she had licked.
Li Ran: "I have been a faculty secretary, academic exchange, and I have seen Professor Wang who presided over the defense."
The girl next to it is a bit incomprehensible: "Because you are a student of Sanwei University, is the professor at Yongchuan University suppressing you? Is this too careful?"
"Is it because of graph isomorphism?" Aguang suddenly interrupted.
"Your thoughts are very dangerous." Pharaoh touched the beard that did not exist in his chin. "But I think it is possible?"
"What are you talking about?" Lin asked.
"The disciples don't know, they had a picture of isomorphism in arxiv six months ago." Pharaoh looked at the gossip.
"arxiv?"
"An academic community accounts for a long time, and the deadline for reviewing papers for journal submissions is generally longer. It is mainly issued on arxiv to prove that you are ahead of others." Ah Guang replied.
"The light brother is narrow, and its existence is to facilitate the forward-reaching exchanges between our peers on a certain issue..."
Lao Wang still has a long story, Lin interrupted him: "And then?"
"Then we used to be very heroic. Recently, he raised some questions about Feng Taidou's paper." Aguang answered.
"The 'question' is not accurate enough, the clear-cut opposition is more appropriate, and the academic circle is very resounding and enjoyable."
Lin Daixi was silent, and the ‘Old Zeng’ in the two populations was of course the professor of Zeng Zhiran, the mentor.
At the end of the modeling contest that day, she went to find a schoolbag, and she had seen Professor Zeng accidentally.
At that time, the atmosphere of the office was dignified, and Yan Zhi and her went to print the article, and also mentioned the "academic circle"...
She suddenly wakes up, is it because of this paper?
And if she remembers correctly, the graph is isomorphic... seems to have something to do with the pnp problem?
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