From small town scholar to chief scientist

Chapter 131 The defense and Academician Yang's plan (for subscription)
After breakfast, Zhou Yi first went to the library to write a paper,
During the summer vacation, the library is still open.

Just when Zhou Yi was writing his thesis to a climax and couldn't stop, a phone call woke Zhou Yi up from his state of concentration.

The vibration mode set on Zhou Yi's phone will not disturb the rest of the students in the library.

Zhou Yi took a look, isn't this his future teacher?

When he came to the bathroom, Zhou Yi connected the phone,
"Hello, Zhou Yi?"

A voice came from the other end of the phone.

Zhou Yi quickly said:

"Teacher, it's me. I'm Zhouyi."

"On July 7st, the International Conference of Chinese Mathematicians, remember to come to Jinling to participate. There will be special personnel to pick you up at that time. In addition, you will change your outfit, and there will be interviews with reporters from Yangshi News, and there will be at 31 o'clock in the evening broadcast."

Qiu Chengtong went straight to the point.

Zhou Yi didn't expect to go to an academic conference again, but he thought it was organized by his master, so he also said:
"Okay, I'll be there on time."

"Well, then I'll be busy first."

Qiu Chengtong's tone was a little hasty, there was someone looking for him on the other end of the phone, obviously very busy.

After hanging up the phone, Zhou Yi read the book for a while,

When the time was almost up, I arrived at the scheduled defense office.

Miao Lai and Academician Yang have already arrived,
In addition to the two, there are Vice President Tang Ping and the few academicians of the Academy of Engineering of Chongqing University.

Seeing Zhou Yi sweating, Academician Yang said:
"Let's start with the air conditioner first. I read your undergraduate thesis, which is comparable to a doctoral dissertation.
I haven't discovered the application value yet, but I can't tell in the future. After all, some things may be destined to be used from the moment they are manufactured, while some achievements may not be taken for hundreds of years. application.

I won't let you pass my question easily, you have to be prepared. "

Zhou Yi took the paper handed over by the dean's graduate students, wiped off his sweat, and first said to Xiao Wang:

"Thank you."

Then he respectfully said to Academician Yang:
"my pleasure."

After a while, the defense began,
Zhou Yi opened his own PPT, followed the procedure, and began to introduce himself,
"I'm Zhou Yi, a 2020 class from Chongqing University of Mathematics. The title of my thesis is "Research on the Exact Solution of Quadratic Programming with Quadratic Constraints,""

Start with a brief introduction to the paper, report the main ideas and final conclusions of the paper.

The people in charge of shooting below also started to point the camera at Zhou Yi.

This self-introduction process only took a few minutes, and the following questioning session was the focus of graduation.

Academician Yang didn't have ink, but asked straight to the point:

"On the fourth page, the second-order cone relaxation method mentioned is for non-convex QCQP problems. Saxena et al. gave a second-order cone relaxation. What is the difference between their views and your views?"

Zhou Yi knew that he would not simply ask some ordinary questions. Fortunately, he was fully prepared for this question.
Zhou Yi said:

"Of course, here I switch the screen to the writing mode, and I write out two different constraints."

"Their constraints are (1/2)x^TQ_ix+(q_i)^Tx+C_i≤0;

And mine is 1/2x^T (∑_{λ_ij}λ_ijV_ij(V_ij)^T)x+(q_i)^Tx+C_i≤-1/2∑_{λ_ij}λ_ij[(b_ij+a_ij)(V_ij )^Tx-a_ijb_ij]. "

Zhou Yi wrote it out directly.

Academician Yang nodded. Even some doctors may not be able to write this question immediately, or even fail to write it.

This question is very detailed and tricky
The academician of Yu University on the side also said:
"Although I am not a mathematics major, I know a lot about mathematics, and I have talked a lot with Lao Yang. Your solution method for the optimal solution of the extended trust region subproblem (eTRS) is different from the general non-convex QCQP The solution methods are different, can you talk about the implementation in the paper in detail?"

Zhou Yi breathed a sigh of relief, the academician's questions were less technical, and more inclined to theoretical applications.

Zhou Yi said:

"The eTRS problem here is implicitly convex, that is, the problem is equal to the optimal target value of a convex relaxation, but the convex relaxation may not directly return the optimal solution of eTRS. Under this premise, we provide A method to return the optimal solution of eTRS..."

The defense went smoothly. With the current difficulty of asking questions, Dr. Xiao Wang on the side couldn't understand it. The main reason was that the direction was different. This thesis was about operations research, not the direction of his research on PDE.

Finally Academician Yang nodded and said:
"Actually, Miaoyuan invited me to be your defense teacher. I was also a little surprised. With your current level, few people can achieve it in terms of geometry.

So I give this paper excellent.

Let me give you another suggestion here, I hope you can refer to it carefully. "

Academician Yang said something solemn at the end, Zhou Yi also nodded very solemnly, and said:
"it is good."

Academician Yang said solemnly:

"As I said just now, with your current geometric level, few people can reach it, and those who can surpass you are those old guys who have been studying for decades, and they have won various awards.
And what you need is to inherit Mr. Qiu’s school of thought, and develop your Zhou’s geometry on this basis,
If you have a chance, discuss with Mr. Qiu, go to Professor Milno to study for a doctorate, or go to Europe, inherit multiple geometric schools, and then become a consensus of everyone, and start a new era of geometry. "

What Academician Yang said is obviously Sima Zhaozhi's heart, which everyone knows, and wants Zhouyi to become the greatest originator of the geometry school!

Miao Lai and Principal Zhang on the side were stunned. If it was as Academician Yang said,
In the future history of mathematics, I am afraid that many pages will be devoted to Zhouyi.

And to establish a sect, so far, apart from Mr. Qiu, there is basically nothing that can be done in China.

Even Shangjing University can't compare at all.

Mr. Qiu's great status in international mathematics is also related to his own school.

If Zhou Yi can achieve this achievement, in the future, Yuda will definitely become a new mathematics center, the largest mathematics center in Southwest China, just like Shangjing University, Shuimu University, Aurora University, Chinese Academy of Sciences, and Chinese University of Science and Technology.

Go head to head with them!
Even when the time comes, it is not impossible to become the largest mathematics center in the Great Xia Kingdom.

At that time, there are many things that can be brought.

The premise is that Zhou Yi is willing to return to Yuda.

Before Zhou Yi could speak, Miao Yuan on the side said directly:

"Thank you Mr. Yang for pointing out the maze, our goal is still too low, Zhou Yi, thank you Mr. Yang."

Zhou Yi has never thought about this kind of thing, but it can be regarded as pointing out a way for Zhou Yi. Zhou Yi said respectfully:

"Thank you Academician Yang, I will work hard."

At this time, Zhou Yi seemed to think of something, and said:

"By the way, Teacher Qiu invited me to attend the ICCM International Conference of Chinese Mathematicians, and I will give a report then."

Academician Yang said directly:
"Go, let mathematicians at home and abroad get to know you more and show your edge."

Zhou Yi said:

"it is good."

After the defense, Zhou Yi took his graduation certificate and degree certificate, put on his bachelor's uniform, and took a photo with all the defense teachers, as well as the principal and deputy dean of the School of Numerology.

So far, Zhouyi basically has nothing to do with Yuda.

Professor Tang Ping on the side seemed to think of something, and said:

"We will keep your dormitory for you until you graduate this year. During this period, you can go back to school at any time, and you can also live in the dormitory. This is specially approved by Principal Zhang."

Zhou Yi was preparing to move out in the next few days, but he didn't expect that he could go back to Yuda to live in the end.
Principal Zhang on the side said:
"Well, we have approved it. I hope you will return to your alma mater more often in the future, and I also hope that you will return to teach at your alma mater in the future."

After speaking, with a trace of melancholy, a trace of hope.

Then they left one by one.

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(End of this chapter)