Ge Juntian shrugged his shoulders awkwardly: "Huivalevskaya, what are you talking about? The capital is not a tiger's den in Longtan, and no one has checked the temporary residence permit or read the water meter, why don't I dare to come?"

"Wait a minute!" the girl hung up the walkie-talkie, ran out and opened the courtyard door, and looked Ge Juntian up and down with round eyes: "You have the confidence to speak! So, you solved a certain Hilbert problem?"

Ge Juntian was a little nervous, and scratched his head: "I just have a few more feasible ideas, but they involve a wide range of things, and there are many knowledge points that are not clear, so I want to come over to the teacher for advice." Is the teacher at home?"

"Cut!" the girl's face was full of disappointment, "Comrade Huilujin is at home, come in!"

"Thank you, Xiaoju!"

The girl's name is Hui Qiongju, just like Ge Juntian can't be called Ge Juntian cowardly, of course she can't really be called Huivalevskaya, this is just a joke among classmates back then. This joke can really be traced back to the beginning, even when Sun Yuanqi founded Jingshi University.

On the day of the establishment of Jingshi University, there were only four majors, in addition to physics, chemistry, electronics, and mathematics. Sun Yuanqi's achievements in physics, chemistry, electronics and other three disciplines are far beyond the brilliant, but his attainments in mathematics are lackluster, at most to meet the needs of physical, chemical, bioelectric research at that time, a little better than the ordinary scientists of the same era. As a direct consequence, several other majors of the University of Mathematics have developed rapidly and quickly established a great reputation in the academic world, while the Department of Mathematics has been obscure and diligently provides data processing services for other majors. Even the majors of Chinese Studies, Pharmacy, Computer Science, and Aviation, which were established later, have sprung up, and the Department of Mathematics is still a passerby.

In view of the fact that mathematics research is too backward to match the status of Jingshi University as a world-class university, a department chair once ambitiously proposed the dream of building a world-class discipline. But at that time, the Göttingen School was in full swing. Mathematics departments all over the world are looking to the world, and it is a joke to ignore them and build a world-class discipline.

As early as the beginning of the 19th century, Gauss, who enjoyed the reputation of "Prince of Mathematics", opened the glorious door to the Göttingen School, and then Riemann, Dirichlet and Jacobi inherited Gauss's glorious achievements. By the first three decades of the 20th century, Klein, Hilbert, Courant, Minkowski, and others were working together. Pushed the Göttingen School to its heyday. In the past 150 years, more than half of the major breakthroughs in mathematics have been conceived and matured here.

The dozen or so people and seven or eight guns in the Department of Mathematics of Jingshi University want to challenge the Göttingen School, it is really too young, too simple, Sam Taim takes clothes!

Then a group of people from the Department of Mathematics of Jingshi University waited and waited, and finally survived until the Göttingen School was declining, thinking that their century had finally arrived, but they did not expect that other Polish schools, Princeton schools, and Bourbaki schools also took advantage of the situation to rise, among which the Moscow School was the most ferocious, such as the representative figures Luzin, Sinchin, Kolmogolov, Uresun, Alexandrov, Pontryagin and others. They all left a lot of definitions and theorems in math textbooks.

At this time, the baton of the head of the mathematics department was handed over to Hui Qiongju's grandfather and teacher, who was also Ge Juntian's teacher Hui Chengze. Hui Chengze's story was re-recalled, and he once again shouted the slogan of building a world-class discipline, and actively devoted himself to scientific research, and made gratifying achievements in the two directions of function theory and topology, and was successfully elected as an academician of the Chinese Academy of Sciences. Because whether he is holding meetings, attending classes, or giving presentations, he must say that he "surpasses the Moscow School." Therefore, he was named "Huilujin" by his classmates.

-- Luzin was a central figure in the Moscow School, and the series of questions he raised have long influenced the direction of the school's research. He also gave lectures on the theory of real functions at Moscow State University for a long time. He has written many classic textbooks and trained countless outstanding students, including Aleksandrov, Uresun, Kolmoglov and other great talents. Everyone named Hui Chengze "Lu Jin", which is not a kind of praise.

Since the teachers have nicknames, the students are naturally not immune.

Ge Juntian's name is "Ge Juntiano" (cowardly) vsky, named after Petrovsky, a mathematician who was the president of Moscow University and had studied partial differential equations. And the reason why Hui Qiongju is called "Hui Valevskaya". It comes from the legendary Russian female mathematician Kovalevskaya. In 1888, she was awarded the Bautin Prize of the French Academy of Sciences for solving the problem of rotation of rigid bodies around a fixed point, and was successfully elected as a corresponding member of the Royal Russian Academy of Sciences, becoming the first female scientist in history to receive this honor. It is rumored that Hui Qiongju aspires to become the first female winner of the Sun Yuanqi International Young Scientist Award, hence this nickname.

The nicknames of the other students are also more or less the same. Either according to interests or aspirations, or according to the direction of research.

Ge Juntian followed Hui Qiongju into the courtyard, and saw the white-haired teacher Hui Chengze and his wife standing at the door, and hurriedly stepped forward to salute the second elder, and his voice was a little choked: "Teacher, good teacher!"

"Okay, good, it's rare that you can still come to visit the old man! You have been gone for two years, and you have rarely received letters, and you have not made a single phone call, and I thought you had forgotten the old man. Hui Chengze's caring tone was a little reproachful, "But I'll test you later, if your time is wasted in the past two years, don't blame the old man for scolding!"

Mrs. Hui plucked Hui Chengze: "It's rare for Jun Tian to come back, can you put your math aside first?" I haven't seen you for two years in the blink of an eye, Jun Tian is stronger, and his spirit is also good, it seems that he is not too mean to himself in Huai'an! Don't leave later, I'll make you a few specialty dishes, can you try to see if my craft has regressed in the past few years?"

Hui Qiongju snorted coldly: "Just like him, he has no heart and lungs, not to mention that he is alone in Huai'an, even if the sky falls tomorrow, he still has a great appetite, how can he lose weight?

Ge Juntian laughed with him: "Master's craftsmanship has already been perfected and entered the realm of transformation, I heard you say that I want to smoke it myself, my saliva will fly down to 3,000 feet!" In the past two years, I have verified a few related and not very famous conjectures, and also imagined some possible ideas to solve the problem, and wrote three papers, I would like to ask the teacher to correct it!"

Hui Chengze's eyes lit up: "Let's go, follow me to the study and talk slowly!"

"Look at you, Jun Tian finally came here, the house didn't enter, the water didn't drink, so he took people to the study, how can you be so hospitable? I asked Chen's mother to buy groceries, and I'll treat Juntian later!"

"Why should I serve him with tea and water?" Hui Qiongju muttered as she went to find a teacup to wash the tea set.

Hui Chengze entered the study and said to Ge Juntian: "The last few issues of mathematics magazines are on the table, you can flip through them casually, let me see how you write these two papers!"

"Yes!" replied Ge Juntian respectfully. Then he picked up a magazine and flipped it up, Hui Qiongju came in to deliver tea, and he also looked at his nose and nose and looked like he was concentrating on reading a book, ignoring Hui Qiongju's grimace and small movements. Hui Qiongju wrinkled her nose and kicked him secretly.

"Ahh

"I thought you were dead!" Hui Qiongju said angrily, "Are you going to leave when you come back this time?"

"I'll go back in a few days. ”

"Still leaving?"

"You have to keep your promise, don't you?"

"If you can't solve it in your lifetime, do you still plan to live in a foreign land for the rest of your life?"

"No, it won't. I have a hunch that it will be resolved in the next three years!"

"When did you switch to fortune telling?"

"Because I've got two right-hand men!"

"The two assistants, the male and the female, how old are they, are they married, what are they doing?" and all sorts of questions erupted like machine guns.

Fortunately, at this time, Hui Chengze roughly finished reading Ge Juntian's papers, and nodded with satisfaction: "Your three papers are not bad, at least it proves that your two years have not been in vain." I'll take a closer look later, and if there are no problems, I can recommend you for publication in the journal Mathematical Research or Advances in Mathematics. However, there are some problems that can be seen from your papers, that is, although your thinking is very creative, your vision is still too narrow, and the foundation is not expanded enough. In my opinion, you should honestly come back and study with me for two years!" (To be continued......)