Chapter 159

Su Xi was wearing a pure white knitted woolen sweater and straight and slender tight trousers, pushed the car door and walked down.

"Did you change cars?" Gu Lu glanced at Su Xi.

If he remembers correctly, when he met Su Xi the day before yesterday, she still drove the fiery red Maserati.

And today it was replaced by a silver-white Lamborghini.

Su Xi explained with a smile, "That Maserati doesn't match the color of today's clothes. ”

Gu Lu: "......"

"Teacher Gu, where are you going to eat dinner?" Su Xi looked at Gu Lu with a smile in his eyes.

Gu Lu pulled the car door and got into the car, and said with a smile, "Take you to taste the special food of our Yanda!"

The food street from the west gate of Yanda to the southwest gate is a characteristic scenery of Yanda.

Barbecue for supper, self-service hot pot, everything.

And it is of good quality and low price, and it is deeply loved by the student party.

When Gu Lu was a university student at Yan University a few years ago, he would come here to forage for food every night when he was studying until late at night.

Gu Lu directly asked Su Xi to drive to Changchun Garden Food Street near the southwest gate of Yanda and stopped in front of a small shop.

The name of the small shop is "Little Hanging Pear Soup", which is quite well-known in the eyes of Yan Daren.

At half past five in the afternoon, there were not many people in the store.

The waiter brought the menu, and Gu Lu ordered a few signature dishes here according to his memory.

Small hanging pear soup is essential.

The taste of the pear soup here is superb, and it even attracts some tourists from other places.

In addition to pear soup, Gu Lu also ordered dishes such as cheese fish, azuki bean cake, pepper and sesame pork ribs, crispy lotus root duck in pear soup, and finally added a bottle of sour plum juice.

The store is small, but it tastes good.

Even Su Xi, the pampered eldest lady, couldn't help but moan comfortably after carefully taking a sip of pear soup.

"It's delicious!" Su Xi picked up the small porcelain bowl and drank it all in one gulp, "It's much better than the cod milk soup I drank before." ”

Gu Lu picked up a piece of cheese fish and said with a smile, "If you think it's delicious, you can come often in the future." ”

"Hmm. Su Xi nodded and agreed with a smile.

…………

In order to catch up with the academic lecture in the evening, Gu Lu and Su Xi both just ate more than half of the meal and left.

Although the sports car is fast, it can't be fast in Yanjing City, where traffic jams are extremely serious.

The road was blocked and stopped, and at about 6:40, Su Xi slowly drove and stopped downstairs at the Institute of Mathematics of the Chinese Academy of Sciences.

The lecture hall is located on the fifth floor.

The lecture hall is a very small room, not even more than twice the size of a normal classroom.

No banners, no media reporters, and no hype.

The whole academic lecture was held in such a low-key manner.

At the door, there was a young lady of etiquette.

Seeing Gu Lu and Su Xi walking straight side by side, the etiquette lady obviously showed a surprised look.

But when she saw the two tickets that Su Xi handed her, although she was puzzled, she still let the two of them in.

The two of them are located in the back of the lecture hall.

After sitting down, Su Xi said to Gu Lu with a slight apology, "I'm sorry, the time is tight, so I can only buy tickets for this position." ”

Gu Lu smiled bitterly and waved his hand, "I'm already very satisfied if I can come and listen, as for the location or something, it doesn't matter at all." To tell the truth, even if I was asked to sit in the aisle with a small bench and listen to this lecture, I couldn't ask for it. ”

After speaking, Gu Lu's eyes scanned the entire lecture hall.

On the front stage, a young man dressed as a staff member debugs equipment.

Then came the people in the auditorium.

There were two academicians sitting in the first row, but they were very young, about forty-five years old.

Gu Lu knew these two.

One is named Ji Mingsheng and the other is Zhang Zehe, both of whom are newly promoted academicians who have just been awarded the title of academician by the Chinese Academy of Sciences this year.

A few rows in the back row, sitting are a group of old professors.

There are those from the Chinese Academy of Sciences, and there are also those from other universities.

Even Gu Lu saw two professors from the Yan University School of Mathematics.

This was all within Gu Lu's expectations.

But to Gu Lu's surprise, Gu Lu also saw several foreign scholars in the crowd.

There were five foreigners, old and young, sitting in the second row.

Among the five foreigners, Gu Lu only knew one.

Professor Miles Middleton from the Massachusetts Institute of Technology.

He has won the highest award in the field of geometry and topology in mathematics, the Wiblen Prize!

At the same time, Professor Myers is also one of the strong contenders for the upcoming Fields Medal next year!

Professor Myers in China!

This is something Gu Lu didn't expect.

He didn't know that Professor Myers had come to China specifically for such an academic lecture by Academician Di.

Again, because I happened to be in China, I came to listen.

Gu Lu shook his head and stopped thinking about it.

No matter what Professor Myers's arrangement was, it didn't have much to do with Gu Lu.

The key now is to listen carefully to the lectures.

After all, opportunities come true.

Gu Lu took out a pen and paper from the bag he was carrying, and was ready to listen and record at the same time.

At about fifty-five minutes, Academician Di held the thermos cup and pushed open the front door and walked in.

Thunderous applause immediately erupted in the lecture hall.

Academician Di has gray hair, but he combs it meticulously.

Wearing a tunic and a pair of black-framed reading glasses, his face is very approachable.

Academician Di specializes in the fields of algebra and geometry.

It enjoys an extremely high reputation in the industry and even internationally.

Academician Di was not only awarded the title of academician by the Chinese Academy of Sciences, but also was awarded the foreign academician by the Chinese Academy of Sciences.

In the domestic mathematics community, there are very few mathematicians like Di Lao who have the title of double academician.

Although his face was full of wrinkles, Academician Di was in good spirits, and he didn't look like an old man in his sixties when he walked.

Walking to the podium, Academician Di opened the projection screen behind him and said with a smile, "First of all, welcome all colleagues to come and participate in this academic lecture. ”

"I know what you're here for, so I'm not going to talk nonsense, we'll ...... Straight to the point. ”

The curtain in front of the lecture hall shows the title of the lecture: "Some results on affine Deligne-Lusztig varieties".

Translated into Chinese is "Research on a Class of Affine DL Clusters".

The so-called affine DL cluster belongs to a class of algebraic clusters. An algebraic cluster, on the other hand, is a set of common zero-point solutions to the set of polynomials in algebraic geometry.

Affine DL cluster is a concept proposed by the American mathematician Denton Correll a few years ago, and after a period of development, it has become one of the hot issues in the field of algebraic geometry.

And Academician Di's latest research results are obviously related to this.

The title was copied from the paper by Academician Di, so it is shown in English.

However, most of the people present were Chinese, and it was not an international academic lecture, so Academician Di directly explained his ideas in Chinese.