Chapter 715: This isn't hard; you guys can derive it yourselves for fun

Inside the seminar room.

Everyone's gaze fell on Zhang Zhi Gao because of Xu Qingzhou's question.

Xu Qingzhou carried a faint smile; not returning a favor is impolite, and he wasn't the type to sit and wait for death.

At the table, Zhang Zhi Gao looked at the complex and dense formulas on the whiteboard and fell into silence, attempting to find loopholes between the equations, but... wanting to find a calculation bug from a Fields Medal winner...

He was a physics expert and had absolute confidence in the field of nuclear fusion, but he wasn't arrogant enough to think he could suppress Xu Qingzhou in the field of mathematics.

Rigorous, extremely rigorous.

Seeing Xu Qingzhou squinting at him, he cursed inwardly again. You're like this, so how am I supposed to question you?

You're a math person coming to discuss this with me; don't you think that's a bit excessive?

Zhang Zhi Gao's complexion was a bit ugly, feeling stifled, suppressing the feeling of being force-fed by someone else, and bit the bullet, saying: "Professor Xu's calculation... is very brilliant."

"As long as it answers Academician Zhang's question, that's enough."

Xu Qingzhou smiled and didn't say anything more, returning to his seat.

Opposite him, looking at Zhang Zhi Gao's speechless appearance, Li Yi felt great. "Old guy, weren't you very arrogant just now?"

Ren Nan also held his teacup and took a sip of tea in a very good mood.

Everyone's expressions were a bit subtle; no one spoke, and the atmosphere at the scene solidified for a moment.

Li Gang smiled and came out to smooth things over: "We adopted the format of 'specialized seminars and group discussions'; the essence is to promote the deepening of problems through questioning. Now it seems that our meeting is quite successful."

"Yes, science progresses through exchange."

Xiao Chenghan also nodded with a smile.

"Alright, let's move on to the next topic."

In the last two days, apart from group discussions and small seminars, the rest was about advancing cooperation, which didn't have much to do with Xu Qingzhou and the others.

They had originally come just to tag along; the institute's current projects were saturated, and apart from small collaborations like the nanopore tungsten film, they really didn't have more energy to participate in international cooperation.

The 7-day seminar concluded successfully with a grand cocktail party. On the morning of November 13th, Xu Qingzhou and the institute's personnel boarded the plane to Kyoto.

It happened to be Friday, 2:00 PM.

"Finally home."

Xu Qingzhou collapsed onto the sofa; after returning to a familiar environment, his whole body relaxed.

Er Miao was still sitting on the sofa in front of the floor-to-ceiling window like an old empress; seeing Xu Qingzhou lying on the sofa, she nimbly landed on the ground and walked over with elegant steps.

"Can't lie down anymore."

After resting for half an hour, Xu Qingzhou got up, changed into a light jacket, and set off for class.

Kyoto University.

After a week-long business trip, the season had changed upon his return.

Because it had rained in Kyoto a few days ago, the temperature was much lower, and most of the leaves on the ginkgo trees on campus had fallen. Looking around, yellow camphor leaves and fiery red maple leaves were intertwined, the garden full of autumn colors.

Xu Qingzhou walked into the lecture hall; there were still many people there to listen to the lecture, and some people were still standing at the back of the classroom.

As soon as he entered, the somewhat noisy classroom quieted down, and everyone's gaze fell on the young man on the stage.

The Riemann Hypothesis—Xu Qingzhou could lecture on it with his eyes closed, and with two lifetimes of teaching experience, he didn't even need a lesson plan.

The class bell rang.

"It's time for the old routine."

"Those who really want to listen to the lecture can stay; if you just want to take photos and check in, I'll give you half a minute now, you can leave." ===== CHAPTER 716 =====