Chapter 233

After dinner, Gu Lu took the three students on the way back to school.

"Teacher, what is the relationship between you and that Su Xi?" Bi Qi came to Gu Lu's side at some point and asked in a low voice.

"Huh?" Gu Lu turned his head, his eyes stared at Bi Qi for a long time, and then he said softly, "A friend who has a good relationship." ”

"Oh. Bi Qi nodded, and asked no more questions.

Next.

Gu Lu was eating breakfast in the cafeteria while chatting with Su Xi on WeChat.

Gu Lu: "Tomorrow's meal is your account, how much money, I'll transfer it to you." ”

Su Xi: "No, it's not much." ”

Gu Lu: "Reimbursement at public expense." I'm worried that the research group can't spend the funds, so I don't need to save money for me. ”

Su Xi: "Okay." ”

Su Xi reported a number to Gu Lu, and Gu Lu transferred the money over.

Su Xi: "By the way, there is a lecture by an academician of Tsinghua University tonight, which seems to be about the field of functional analysis, I have a way to get a ticket, do you want to listen to it?"

After listening to so many lectures with Gu Lu, Su Xi finally had a vague idea of the specific branches in the field of mathematics.

Gu Lu was silent for a few seconds.

Gu Lu: "Forget it, don't listen to it." Shall we go to the movies tonight?"

Su Xi: "Look, movie?"

Su Xi was really stunned this time.

Su Xi has always dreamed of watching a movie with Gu Lu, but for more than a year, he hasn't seen a movie, but Su Xi has accompanied Gu Lu to listen to dozens of lectures.

According to Gu Lu's indifferent attitude towards movies, Su Xi thought that this desire to watch a movie with Gu Lu would become a series of lifetimes.

But I didn't expect that there would be a chance to achieve it today.

Or Gu Lu took the initiative to bring it up.

Su Xi's heart was pounding.

Su Xi immediately typed and replied, "I'll book tickets immediately, can I have a show at nine o'clock in the evening?"

Gu Lu: "Yes, we can just finish dinner together." ”

Su Xi: "Have dinner, are you still with your three students?"

Gu Lu: "No, it's just the two of us this time." ”

Su Xi: "Uh-huh. ”

No one noticed that an abnormal blush had appeared on Su Xi's face.

After finishing the chat, Gu Lu put his phone aside and stretched his waist.

He was too tired during this time.

In addition, it happened to be blocked by ideas, and the progress of research stalled, which made Gu Lu's heart extremely irritable.

Gu Lu knew that it was difficult for him to calm down and study in this state.

It's better to give yourself a day off and relax completely.

…………

As for the movie, Su Xi hesitated for a long time and chose a youth romance film, "The Best of Us".

Su Xi thought about whether it would be too explicit to choose a romance movie for the first time when he accompanied Gu Lu to watch a movie.

But after thinking about it, with Gu Lu's straight man-like personality, if it wasn't so explicit, Gu Lu might not know his mind.

So, Su Xi booked two movie tickets for "The Best of Us", striving to warm up his relationship with Gu Lu after this time.

After eating dinner at a western restaurant, Gu Lu and Su Xi went directly to a nearby Wanda Cinema.

Su Xi took out two movie tickets and handed one to Gu Lu, then glanced at Gu Lu secretly.

But what disappointed Su Xi was that when Gu Lu knew that the movie he was going to watch was a romance movie, the expression on his face did not change at all.

After checking the ticket and entering the venue, in order to avoid Gu Lu's disgust, Su Xi did not choose to charter the venue, but only chose two locations with excellent viewing experience.

The lights in the theater went completely dark.

In the dark, Su Xi sat next to Gu Lu and could feel each other's breathing.

With a burst of soft music, the movie begins.

Movies are good movies.

With the film model of Huaguo from the era of small fresh meat to the era of word-of-mouth, the entire market is full of strong vitality and vitality.

Especially campus youth films, domestic directors are becoming more and more familiar with this type of film.

As long as there is a good script, the box office results will not be too bad no matter what.

"The Best of Us" tells a story about youth and love.

Especially when the male and female protagonists reunited at the end of the movie, many people in the theater shed tears.

Su Xi is naturally one of them.

Next to him, Gu Lu's eyes flashed slightly, and he didn't know what he was thinking.

At the end of the movie, Gu Lu and Su Xi walked out of the theater.

Su Xi obviously hadn't come out of the state just now, and there were tears in his eyes.

Gu Lu shook his head and handed Su Xu a tissue.

"Thank you. Su Xi replied angrily.

Gu Lu smiled dumbly.

Wiping away his tears, Su Xi glanced up at Gu Lu, "Teacher Gu, aren't you moved?"

"Moved, why moved?"

"For the love of the male and female protagonists?"

"Not really. Gu Lu shook his head, "Early love is not worthy of sympathy!"

"If I were their teacher, I would have called their parents a long time ago. strangle this relationship in the cradle. Gu Lu took on the role of a high school teacher.

Calf love......

The corners of Su Xi's mouth twitched, he didn't expect Teacher Gu's brain circuit to be so strange.

"It's better to watch less movies of this genre. Gu Lu said.

"Why, is it because of early love?"

"One of the reasons. I found that the level of the teacher in this movie is also a bit subpar. ”

"Huh?"

"In the movie, one hour, twelve minutes and thirty-nine seconds, the answer to the derivative problem written on the blackboard by the male and female math teachers is 2, not √ 3-1. ”

Heh, hehe.

Mr. Gu, what are you paying attention to?

This time, none of the expected goals of taking Mr. Gu to see the movie were achieved.

Forget it, next time I'll go to watch a blockbuster in the United States.

Romance movies or something, not suitable for Mr. Gu.

Su Xi was a little tired.

Gu Lu was driven back to school by Su Xi.

I don't know if it's an illusion, on the way, Gu Lu always felt that Su Xi looked at him with a sense of resentment.

…………

Maybe it's psychological comfort, or maybe it's true.

In short, after Gu Lu indulged for a day that time, Gu Lu could settle down again and continue to overcome the problem.

The scratch paper was piled up by Gu Lu one stack after another.

Finally, after a busy day and a night, Gu Lu finally found a solution to the current problem.

Previously, Gu Lu was stuck in not knowing how to generalize the three-dimensional BAB conjecture to the high-dimensional BAB conjecture.

Because the research object of the BAB conjecture is fano clusters, it is difficult to carry out this kind of generalization from three-dimensional to high-dimensional.

Gu Lu came up with a way to divide the seemingly chaotic Fano clusters into finite groups, and for the Fano clusters in each group, one of them can be changed into another through continuous changes.

In this way, the three-dimensional BAB conjecture can be smoothly generalized to the high-dimensional BAB conjecture.

The last piece of the puzzle is officially put together!