After finishing his communication with Ivy Li, Alex Ye went to look at other people’s posts.
By the evening, the mission progress reached 60%.
Alex Ye thought: "Is my task too simple? It took me half a day to reach 60% of the task progress."
"Should we set up an SCI entry for this paper?"
"Fcuk..." Alex Ye was shocked by this terrible idea. What was he thinking about? Entering SCI?
Are there any master's theses from Zhonghu University included in SCI?
It seems that it has not appeared yet.
Although Zhonghu University is a 985 university, it is only a bottom-tier 985, not even C9, let alone E9.
At the graduate level, almost all papers published in SCI come from C9 universities.
Ian Zhuang took his hands off the computer and asked with a gossipy look on his face, "Alex Ye, do you know why your advisor allowed your paper to be included in CSCD?"
"Why?"
"Do you still remember my advisor's rival, Professor Li Jiguo? I heard that one of his first-year graduate students had a paper accepted by CSCD not long ago."
Professor Li Jiguo is also from the Department of Mathematics. He once competed with Professor Oliver Lu for the provincial scientific research fund. Both of them wanted to do scientific research and needed research funds.
However, Professor Li Jiguo failed in the competition, which led to the delay of his scientific research. Later, he competed with Professor Oliver Lu for the position of full professor.
Because his research was delayed and not completed at that time, he failed in his bid for the position of full professor.
After this couple of interactions, the two of them started to have a grudge against each other.
"Plus, you are the only one among us who was admitted to graduate school, and your supervisor usually has high expectations of you, so naturally this glorious task is given to you." Ian Zhuang said with a smile.
"Why does my supervisor want me to write my thesis in CSCD?" Alex Ye shook his head.
Alex Ye did not doubt Ian Zhuang's information. Ian Zhuang was known as an intelligence expert. He could find out everything in the school, big or small, as long as he was given half a day.
"Are you very sad?" Ian Zhuang said with a smile: "I just fell into an unexpected disaster."
"Not really." Alex Ye said, "CSCD is CSCD, it's not like we can't get in."
Mason Zhou and Blake Xu walked in together with smiles on their faces, talking to each other about their girlfriends.
Mason Zhou said: "Women, if you spend money, you just beckon them."
"Tsk..." Blake Xu said, "Are those girls attracted to you for who you are or for your money? You still have to be sincere when dating a girlfriend. Girls care about details."
Mason Zhou said disdainfully: "You are not doing it with your heart, you are doing it with your body."
Alex Ye and Ian Zhuang looked at the two people who walked in together and cursed in their hearts: "Two Sc*mbags, I don't know how many girlfriends they have played with."
Alex Ye sometimes feels strange. He looks good, but he is still a novice, 100%.
In terms of appearance, I am the best in the whole dormitory.
Forget about Mason Zhou, he is a rich second-generation and is very successful in the love field.
But Blake Xu, from an ordinary family, is neither tall nor handsome, and a little dark, but he has a mouth that can make the dead come alive, and he has a row of ex-girlfriends.
Finally, Alex Ye concluded that it was no wonder that there were few female science students. Girls were too irrational and would lose their minds after a few sweet words.
The next day, more than 30 people were in the classroom.
A professor in his forties was speaking at the podium about the Hahn-Banach theorem in functional analysis, which is about the extensibility of linear functionals on Banach space.
This also belongs to set theory and is the axiom of choice among the five axioms of set theory.
If the continuum hypothesis is proven, then there are six axioms.
This is a very profound subject.
Although everyone prepared in advance, no one in the class could understand 100%, so everyone painfully wrote down what the professor said on the computer.
Wait until after class to review. If you still can't learn it, you can find information to study on your own, or ask your instructor, or ask seniors who have already learned it.
There are more than 30 people in this class, but they are not graduate students under one tutor. Instead, graduate students under multiple tutors are gathered together to take classes.
There are some big differences between graduate students and undergraduate students.
Graduate study no longer means being in a certain class, but rather following a certain tutor.
A supervisor may supervise one or two graduate students each year, or three or four at most. In three years, he or she may supervise three to twelve students.
The four students in Alex Ye's dormitory followed the same tutor.
Ian Zhuang, who was sitting next to Alex Ye, asked quietly: "Alex Ye, you are listening so carefully, how much did you understand?"
"I understand everything." Alex Ye said without turning his head.
In math class, you are not allowed to talk casually or lower your head. If you say something, lower your head, and then look up to listen to the teacher, you will be dumbfounded.
What is the teacher saying?
How to solve this?
Fcuk...I don’t understand.
Ian Zhuang curled his lips and said, "Just brag!"
Although Alex Ye was admitted through guaranteed admission, they have been together for nearly a year, so he still knows Alex Ye's level.
Being guaranteed admission to graduate school only means doing well in undergraduate studies, but it is not necessarily the case in graduate studies.
And can you understand all of this difficult course?
A smile appeared on Alex Ye's lips. He might not have understood it before, but with the help of the system, he really understood it.
And the level of understanding is not 66.8% or 99.8%, but 100%.
The professor on the podium saw Alex Ye and Ian Zhuang talking and coughed lightly.
University is not as strict as junior high and high school. As long as the impact in class is not serious, professors will turn a blind eye.
But Ian Zhuang seemed not to notice. He told Mason Zhou and Blake Xu beside him that Alex Ye could understand everything. Both of them looked at him in disbelief.
The professor saw that Ian Zhuang was still talking and everyone in the classroom was listening quietly. He was talking and smiling, and the students nearby were affected. This was unforgivable.
He pointed at Ian Zhuang and said, "Student, please stand up."
The classroom suddenly became quiet, and everyone looked at Ian Zhuang.
Ian Zhuang looked around blankly. Seeing that everyone was looking at him, he knew that his words had angered the professor, and he felt a little panicked.
He stood up in panic. The professor asked, "What did you just say? You sounded so excited."
Ian Zhuang lowered his head and said guiltily, "Professor, I'm sorry."
"Tell me what you just said." said the professor.
...Ian Zhuang remained silent. It didn't matter if he was punished, but it would be bad if it implicated the other three roommates, so he remained silent.
Seeing that he didn't say anything, the professor pointed at Alex Ye and said, "The student on the right was the first one to talk to you. What did you say?"
Alex Ye stood up and said, "Professor, he asked me how much I understood, and I said I understood it all."
"Did you understand everything?" the professor asked in surprise.
He knew the difficulty of this course. Few first-year graduate students could understand everything. They reviewed carefully and looked up information after class, and then slowly learned it.
Many people looked at Alex Ye in surprise.
Did you understand everything?
Please stop bragging.
The professor said with a smile: "Since you said you understood everything, then tell me how to use the Krylov subspace method to solve linear equations."
The professor thought this was too difficult for a graduate student, and added: "Don't ask for a complete solution, just give the general idea."
Alex Ye said: "Professor, can I go up? It's hard to say, you have to write it down."
Everyone looked at him in surprise, Brother, you are really good!
It’s easy to go up, but hard to come down!
No one believed that Alex Ye could solve the professor's problem.
"Okay!" the professor nodded.
He didn't want to embarrass Alex Ye, but since Alex Ye said he understood everything, he wanted to test it.
It's just the right way to relieve the fatigue of long classes and just treat it as entertainment!
It doesn’t matter if the student can’t solve it. It’s normal. If he can solve it, it proves that the student has indeed understood everything.
Alex Ye stepped forward, picked up the chalk, and said to everyone: "If you want to use Krylov subspace to solve linear equations, you can first use Hilbert space to preprocess the Krylov subspace and its convergence."
"Consider linear algebraic systems."
He used chalk to scribble out a set of equations on the blackboard.
【Ax=b】
...
"b∈R is a known column vector."
"That's roughly what I'm thinking."
"Very good!" The professor nodded with satisfaction: "It seems that you really understood everything, and your solution is very correct."
Everyone was surprised, he actually understood it all. Don't be lucky, you just happen to know what the professor said!
Ye Feidao: "In fact, if you want to solve a linear algebra system, you can also solve it this way."
Alex Ye found that the progress of the task had improved a little after he came up to solve the problem.
In this case, let’s solve some more problems to further improve the progress of the task.
"You have another solution?" the professor was surprised.
"Yes!" Alex Ye nodded: "For solving linear algebraic systems, we can also use the projection algorithm of the Krylov subspace method."
"You also know the projection algorithm?" the professor was surprised.
This method is beyond the syllabus and he didn't even talk about it in class.
Moreover, projection algorithm is not something you learn in the first year of graduate school, you can only learn it in the third year of graduate school.
"I read about it in a paper before." Alex Ye said, "So I learned it."
"Then try using the projection algorithm."
Alex Ye turned around and wrote on the blackboard.
[Let the initial solution be x, then the corresponding initial residual is r=b-Ax, which we call
K(A, r) = span{r, ArA^2r,
...
Here L is another m-dimensional subspace, called the constraint subspace. 】
The class looked at what Alex Ye had written with delight and praised: "Very good, very good, absolutely correct."
"Student, what's your name? Which professor's graduate student are you?"
There are so many people in the class, and such courses are only held once every half a month, so the professor does not know all the students present.
"My name is Alex Ye, and my supervisor is Professor Oliver Lu."
"So you are Professor Oliver Lu's student, no wonder." The professor nodded and said, "Alex Ye, I will remember you."
The students below were dumbfounded when they saw what Alex Ye had written.
Fcuk...I don’t understand.
When will our basic mathematics major produce such a genius?
Aren't you a first-year graduate student?
Are we studying for the same master's degree?
Ian Zhuang and his two roommates looked at each other in surprise. Alex Ye, when did you become so awesome?
"Okay, you can go down now." The professor said, "That student should sit down too and stop talking, or I will ask you to stand up again."
"You should also learn from the student next to you and study hard."
Ian Zhuang was very sad to hear this. Who didn't study hard? I did study hard, but I don't know what happened to Alex Ye today. It seems like he was cheating.
After class, Ian Zhuang and the other two surrounded Alex Ye, staring at him eagerly, and asked, "Alex Ye, tell me, have you been studying secretly?"
"Really not!" Alex Ye shook his head: "I just read the literature that my tutor asked me to read. He also recommended it to you. Who can you blame if you don't read it?"
"Really?" Ian Zhuang and the other two looked at each other in doubt and thought, "No, we have to read the literature recommended by our instructor starting today."
"Let's go!" Alex Ye walked forward: "We still have classes later!"
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