My technology affects the whole world

"Brother Ma, we are from the School of Electronics, why do we come to the School of Mathematics?" Ji Leiming followed Ma Tian and stood at the gate of the School of Mathematics and couldn't help but ask.

"Isn't it because we don't have academicians in the Institute of Electronics?" Ma Tian replied casually, but his eyes were focused on the celebrity introduction hanging on the wall.

Zhou Ping is currently an academician of the Academy of Sciences. In the early 1980s, he made certain achievements by applying the Century Theorem of finite simple group classification. He was the first to provide the necessary and sufficient conditions for zero-deficient P-blocks, solved the Brauer39 problem, and cooperated with others to solve the Brauer40 problem.

Developed the arithmetic theory of groups, and then solved long-term unresolved problems such as Huppert conjecture and conjugate class length conjecture, and studied spectral problems such as Dededkind-Zeta-functions in the number field and the Laplace-Beltrami operator on Riemannian manifolds. be applied in...

"That's what I say, but after all, we are not the 'sons' of the School of Mathematics. Will people care about us?" Ji Leiming said, rubbing the back of his head, feeling that he and Ma Tian would probably hit a wall today!

Not to mention that there is no human society in academics. The tutors in each college must have a better impression of the students in their own college than those in other colleges.

"How would you know if you don't give it a try? Anyway, the worst we can do is get rejected, and we won't lose anything. At most, we'll waste some time!" Ma Tian said indifferently.

Ji Leiming was still too young to lose face. The worst result is rejection, which is nothing compared to future setbacks!

Ma Tian recorded the relevant information about Academician Zhou Ping, took Ji Leiming and took the elevator to the third floor of the School of Mathematics, went to Zhou Ping's office 317, and knocked on the door gently!

"Tuk Tuk"

"Tuk Tuk"

"Are you not in the office?" Ji Lei asked clearly after seeing no response for a few minutes.

Ma Tian nodded: "Then let's wait here!"

"Ah -" Ji Leiming said in surprise. He didn't expect Ma Tian to be so persistent. To be honest, he was still a little afraid of meeting strange teachers and wanted to run away.

"Ah what! Go buy me 3 bottles of Pepsi!" Ma Tian said.

"Why should I go?"

"Do you still want me, a person who receives a monthly school subsidy of 500, to treat you to a drink?"

"Oh, but why do you want to buy 3 bottles?" Hearing what Ma Tian said, Ji Leiming immediately agreed, but was surprised why the quantity was 3 bottles.

"I'll tell you when you buy it!"

Seeing Ji Leiming obediently buying a drink with a head full of doubts, Ma Tian couldn't help but chuckle and shake his head. It's so simple, Ji Leiming!

…

five minutes later!

"Gugu~~eh——"

Ji Leiming looked at Ma Tian who was drinking Coke and burping soda, and couldn't help but ask: "Brother Ma, it's time you told me why you bought 3 bottles? You won't tell me that you bought it for Academician Zhou, right?"

Ma Tian raised his eyebrows: "What else?"

"Damn it, do you still want to use Coke to bribe other academicians? How can I like Pepsi-Cola when I'm so old?" Ji Leiming couldn't help but be shocked. He didn't expect Ma Tian to really answer this.

"Oh - Lei Ming, please don't get excited! Let me ask you, if you see two people drinking Coke in front of you without preparing anything for you, what is your first thought?" Ma Tian was exposed and did not panic. "Don't be busy," he said as if he had a winning chance.

"Then I must be a little unhappy!" Ji Leiming answered truthfully.

"Yeah, if those two people suddenly took out another bottle for you, wouldn't you feel better!" Ma Tian continued to say with a smile.

"It seems like this!" Ji Leiming's eyes widened, and suddenly he felt that it made sense for Ma Tian to ask him to buy 3 bottles.

"See, you don't have to drink, but we have to prepare, do you understand?" Ma Tian said earnestly.

"Brother Ma, you are right!"

"Well, children can be taught~~"

…

After waiting for Zhou Ping to come to the office all afternoon, Ji Leiming couldn't help but said to Ma Tian, ​​who was squatting on the ground against the wall: "Brother Ma, should we go? It's almost dark! I guess Academician Zhou Ping won't be there today." Come to the office!"

"Let's go! Come back tomorrow!" Ma Tian stood up, patted the ashes on his back, and left.

"Ah - Brother Ma, are you coming tomorrow?" Ji Leiming followed Ma Tian as he left, wondering why Ma Tian was so insistent on having Academician Zhou Ping be Daiso's mentor?

In fact, Ma Tian has no choice. There are only a few academicians at Hunan University, and only one academician in mathematics is Zhou Ping!

Compared with academicians from other disciplines, Ma Tian, ​​who had reached level 3 in mathematics, was most confident in Zhou Ping to invite him as his mentor.

Of course, Ji Leiming wouldn't believe this if he said it now, so Ma Tian, ​​who had been waiting all afternoon, still pretended to be relaxed and said: "That must be true. In ancient times, Liu Bei even visited the thatched cottage. We just wanted to make him a big man in one day." Isn’t it too easy for an academician to be our Daiso mentor?”

"Brother Ma, you are right! I will come with you tomorrow!" Ji Lei nodded in agreement. Brother Ma is his brother Ma and never gives up. "Brother Ma, what about the third bottle of Coke?"

"Of course I drank it!"

…

The next day, Ma Tian and Ji Leiming skipped class to visit Zhou Ping again.

Fortunately, they arrived today.

"Hello, Academician Zhou!" Seeing Zhou Ping coming with his briefcase, Ma Tian immediately stepped forward to greet him and said with a bright smile.

"Hello, who are you?" Zhou Ping was still a little confused.

"Oh, we are students who admire you!"

Zhou Ping \u0026 Ji Leiming:? ? ?

"Students who admire me? What degree do you have? How come I haven't seen you before?" Zhou Ping couldn't help but wonder.

Ahem, cough, cough~ Ji Leiming, who is behind, has his heart in his throat. Let’s see what Brother Ma will do!

Ma Tian said calmly: "Academician Zhou, we are freshmen!"

"..." Zhou Ping was silent, and couldn't help but look at Ma Tian and Ji Leiming with his eyes. At this moment, he seriously suspected that the two were vain freshmen who came to get close to each other on purpose.

Ji Leiming was almost dying of embarrassment. He didn't expect Ma Tian to reply like this. They were freshmen. At least they would stop talking nonsense. At least they wouldn't have to worry about Academician Zhou's "revenge".

However, what Ma Tian said next was beyond the expectations of everyone present.

"Academician Zhou, I learned about your research on Riemannian manifolds. You once proposed that when M^N is an n-dimensional submanifold in the n+p-dimensional Riemannian manifold N^(n + p). Select a local part in N The standard orthogonal fields {E1, E2,...En+p}, such that when they are restricted to M, {E1, E2,...En} will be tangent to M, and {En+1, En+2, ...En+p}perpendicular to M.

In my opinion, this can also be extended to the eigenvalue integral inequality of the Laplace-Beltrami operator on closed submanifolds! And for any point x∈N and any unit orthogonal vector {E1,...En} in TNx, as long as the cross-sectional curvature of n satisfies

n∑(i=1)Ki(min)(n-1)c

Where c is a constant, it is called the nth Ricci curvature of N (n-1)c. "

Ma Tianyu is amazing!

Zhou Ping looked at Ma Tian blankly, while Ji Leiming behind Ma Tian had his mouth wide enough to fit an egg in!