Chen Zhou took out his rice 3 mobile phone, connected to the network of Yan University Library, and began to search for literature.

I have to say,Mi3The performance is okay,That is, the screen is a little smaller,It's not very convenient。

Chen Zhou found two important references.

【Sudbery， A．Quaternionic analysis：Bibcode，1979】

【Brackx， F.; Delanghe， R.; Sommen， F．Clifford analysis：Longman，1982】

The first literature was on quaternion analysis, and it was the starting point for many of Clifford's analyses.

In subsequent studies analyzed by Clifford, many of the conclusions were similar to those of the literature.

The second is the pioneering work of Clifford's analytical research direction.

Chen Zhou took a note of the index numbers of these two documents, took the computer with him in the evening, and then came to the library to download them.

It can only be said that Rice 3 can be OK, but it is really not very convenient.

After reading the literature for a while, Chen Zhou said that he was a little uncomfortable, and the literature in English was still not very comfortable to look at.

For academic research, first-hand information is the most important, and the content after translation is always not enough.

Chen Zhou, who thought like this, secretly decided that he would still have to learn English again in the future, at least when reading English literature, there should be no obstacles.

He also probably guessed why there is a component module of linguistics in the system, and language is the concrete expression of thinking, which is the most important carrier of human civilization.

With language and writing, human knowledge can be communicated, thinking can collide, human knowledge can be recorded, and it can be widely disseminated in space and time.

Retracting his thoughts, Chen Zhou marked the things he didn't understand first, and stumbled to continue reading.

After a while, Chen Zhou felt that his arm was poked, and he habitually looked at Yang Yiyi beside him.

Yang Yiyi pointed in You Yurou's direction, Chen Zhou looked over, You Yurou had already packed her things and was about to leave the library.

"You said please eat. Yang Yiyi looked at Chen Zhou and said.

Chen Zhou smiled and rubbed her head: "Let's go." ”

The two of them packed up their things and headed towards the door of the library.

Out of the library, Chen Zhou noticed that You Yurou seemed to be waiting for him and Yang Yiyi on purpose.

Yang Yiyi walked to You Yurou's side: "Let's go, Yurou, someone invites you to eat." ”

You Yurou urged Yang Yiyi to say, "Then I'm not welcome." ”

Looking at the appearance of Yang Yiyi and the others, Chen Zhou felt that he was being tricked?

Naturally, it is impossible to actually eat rice bowls for dinner.

The three of them left the gate of Yan University and went to the snack street.

Yang Yiyi has the attribute of a foodie, and Chen Zhou experienced it in Luzhou Pedestrian Street.

But this petite You Yurou, he didn't expect that he was also a foodie.

After Yang Yiyi handed the backpack to Chen Zhou, she also took the little sister's backpack to Chen Zhou.

You Yurou showed an apologetic expression, and was immediately dragged into the snack street by Yang Yiyi.

I saw two girls in front, walking and stopping to eat, while Chen Zhou was hanging three backpacks and slowly following behind.

However, Yang Yiyi didn't forget Chen Zhou, and stopped from time to time to feed Chen Zhou.

Chen Zhou was also happy to be like this, he had already sent a red envelope to Yang Yiyi, so he regarded it as a treat.

It also saves him from worrying about what to eat.

By the time the two girls were full of food and drink, Chen Zhou was almost fed.

Remembering that he was going to check the literature in the evening, Chen Zhou proposed to go back to school.

Although Yang Yiyi and You Yurou were a little unsatisfied, they did not object, and the three of them returned to Yanda the same way.

You Yurou said hello, and didn't plan to make a light bulb anymore, separated from Chen Zhou and walked straight towards the library.

Chen Zhou and Yang Yiyi walked hand in hand on the campus of Yan University.

After that, Chen Zhou went back to the dormitory and brought the computer out, and the two went to the library again.

The library was already overcrowded, and the two searched for a while, and finally found two empty places.

Yang Yiyi took out linear algebra and began to gnaw on the book.

Yang Yiyi is not like Chen Zhou, although she has absolutely sufficient confidence in the exam of the line generation, she is still ready to review it.

At least, in terms of her attitude towards the exam, she is much more upright than Chen Zhou.

Moreover, in the matter of the exam, Yang Yiyi felt that there was really one less subject in the exam, and she liked the feeling of testing the learning results.

Chen Zhou naturally didn't know what Yang Yiyi was thinking, and if he knew, maybe he would also correct his attitude towards the exam.

As he said in an interview many years later, he missed the time when he was in Maochang High School.

Now Chen Zhou is full of thoughts about the literature that he didn't finish reading in the afternoon.

After taking out the computer and turning on the Internet, Chen Zhou found the two documents according to the index number recorded in the afternoon and began to download them.

For a night, Chen Zhou was gnawing on these two documents.

No, it's one.

The depth of the content of this thing was a little difficult for him to chew.

But anyway, I can still gnaw on, although there are more places marked, but it will not make the brain become a mess.

In the evening, when the library was closed, Chen Zhou, who returned to the dormitory, sat down at his desk again and began to digest the knowledge he had learned.

It wasn't until Yang Yiyi sent a message reminding him to go to bed early that Chen Zhou got up to wash.

Lying on the bed, Chen Zhou looked at the ceiling above his head, a little distracted.

Although he has been thinking about the problem of "the properties of pure functions and related operators in Clifford's analysis" for some time.

But it wasn't until today that he really decided to make this question his first research topic.

However, judging from the discussion with Wu Xiping and his own reading of literature, this topic is indeed a bit difficult for him now.

The complex differential form of the Stokes formula in the complex Clifford analysis, the basis elements of the non-exchangeable Clifford algebra and the complex differential form of the complex coordinates, and how to construct the Cauchy integral kernel in the complex Clifford analysis using this differential form are difficult for him.

"Alas, take it one step at a time......"

Sighing softly, Chen Zhou didn't think much about it anymore, turned over, and his eyes couldn't help but fall on the stack of textbooks that he hadn't finished reading.

With a sigh in his heart, Chen Zhou realized the crux of the problem, and his foundation was still not solid enough.

Normally, he should have devoured all these textbooks before starting this project.

After all, this topic is beyond the scope of his current knowledge and ability, and only by filling this gap in his ability can he successfully carry out the research project.

After thinking about it, Chen Zhou made a decision to speed up the study of the remaining textbooks while researching the topic.

"Brother Chen, what are you sighing for? Didn't you do well in geometry today?" Zhao Qiqi's voice interrupted Chen Zhou's thoughts.

"What do you want? I think it's harder for Chen Zhou to fail the exam than for you to find a girlfriend!" Zhu Mingli said.

"What's the matter with you, don't you don't have a girlfriend either?" and talk about me!" Zhao Qiqi said again, "Besides, don't I care about Brother Chen?"

Zhu Mingli said: "Chen Zhou has a girlfriend to care about, so I don't need you." ”

Zhao Qiqi stopped talking.

Chen Zhou said with a smile: "I remember the matter of friendship, don't worry." Well, how did you do on the exam?"

Zhu Mingli: "It's okay, except for a few points." ”

Zhao Qiqi: "It's okay, it's really a bit difficult to count points." ”

Li Li also said: "It's okay. Chen Zhou, what about you?"

Chen Zhou: "I did a good job. ”