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After Qin Qing'er left, there was only Qin Cheng in the family, and now Zhang Yinyao is only living here for a while.

The day after tomorrow, I will go to the magic capital again.

So Qin Cheng loosened a little.

The drafts of Hodge's conjecture that I usually have to study are casually placed on the living room table.

In order not to affect Dean Sang, Qin Cheng gathered them together, and then put them on the sofa on one side.

"Teacher Qin, for you, I often hear Xiao Yi talk about coming here today, firstly, to get to know you, and secondly, I want to discuss academic issues with you."

After Dean Sang sat down, he looked at Qin Cheng and said, his tone was kind, and he also had respect for Qin Cheng.

Always use the word you.

This actually made Qin Cheng a little unaccustomed.

"Dean Sang, I am a junior in front of you, so don't call me by you, I'm afraid I'll die later."

"You can just call me Qin Cheng, or Xiao Qin."

Qin Cheng said with a chuckle.

The other party is the dean of the School of Mathematics, and he is a national academician of the Eight Classics.

It's inappropriate to call you all the time.

"The master is the teacher."

Dean Sang chuckled.

The two chatted casually, and as for Zhang Yi, he was a little nervous sitting on one side, this was the first time he planned to challenge Qin Cheng.

Although it is formal academic challenge competition.

But he was still afraid that Qin Cheng would misunderstand him and misunderstand him.

Then criticize him.

Qin Cheng's status in his heart was no less than that of his father.

Zhang Yi took a deep breath, and finally summoned up his courage.

Placket.

"Teacher Qin, I have something I want to tell you..."

But before he finished speaking, Qin Cheng saw that Dean Sang had been sitting for so long, and he didn't pour him a glass of water, so let the fat man wait to say.

I will go and make a pot of tea for Dean Sang first.

That's the fork.

Let Zhang Yi's courage just plucked up leak back.

Qin Cheng made a pot of tea and sat down, and seeing that Zhang Yi did not speak, he chatted with Dean Sang again.

What proof of Zhou's conjecture, what a reverie of various mathematical problems.

Anyway, as long as Dean Sang knows, Qin Cheng knows.

And he knew more thoroughly and profoundly than Dean Sang, chatting and chatting, and slowly became Dean Sang asking Qin Cheng vigorously.

And Qin Cheng answered casually, which benefited Dean Sang a lot.

Zhang Yi on the side was quiet for a long time, and did ideological work in his mind for a long time.

Once again, I mustered up enough courage.

Shouted Qin Cheng again.

"Teacher

Qin..."

When Qin Cheng heard this, he looked at Zhang Yi.

You brother-in-law, there is something to say, there is a fart to fart.

I'll spank you with a ruler!

But at this moment, Zhang Yinyao called Qin Cheng.

Interrupted Zhang Yi's words again.

"Qin Cheng, you come in and help me."

It turned out that the ordered meal needed to be warmed up, so Zhang Yinyao needed Qin Cheng to go over.

Hearing Zhang Yinyao's words, Qin Cheng decisively abandoned Zhang Yi.

Went into the kitchen.

Zhang Yi, who remained behind, was deflated again.

I just want to open up the next challenge, is it so difficult?

Seeing Qin Cheng leaving, Dean Sang looked around.

Glancing at the information that Qin Cheng had just packed.

Then I got up and went over, picked it up and looked at it.

This is not a matter of concern.

At the second glance, I completely fell into it.

"On the algebraic topology of non-singular complex algebraic varieties and the geometric relation to its representation by polynomial equations defining sub-clusters."

"Isn't that the Hodge conjecture?"

"Could it be that he is studying the Hodge conjecture?"

Then I picked up the document and read it carefully.

Then look and watch.

Dean Sang's brain turned into a pile of paste.

Because there are many things he can't understand at all.

The Hodge conjecture is a highly specialized problem that deals with objects that are far removed from people's intuition.

This led to many mathematicians knowing nothing about him.

Not only is it difficult to judge the right or wrong of the conjecture itself, but there is even no consensus on the formulation of the problem itself.

Since the Hodge conjecture was proposed a century ago, it has been almost zero progress.

No one has ever lifted its veil.

Even if it's just a simple corner.

"Xiao Yi, haven't you been studying the Hodge conjecture recently? Take a look at this information.

Dean Sang couldn't understand it, and then handed the information to Zhang Yi.

I want him to see.

At this time, Zhang Yi was organizing the language to challenge Qin Cheng.

When I heard Dean Sang's words, I was a little confused. Only then did he react.

Then he took the information in Dean Sang's hand.

Turned a few pages.

My heart was shocked.

This is the proof of the Hodge conjecture!

Too familiar, he had been thinking about this conjecture during his previous retreat.

"This is the Hodge conjecture!"

Zhang Yi spoke, and then flipped through the entire information.

"It's not really proven yet, but it's already a lot of work."

"I can't say whether this proof process is right or not."

"But this proof method is very unique, something I have never thought of before!"

Zhang Yi said excitedly.

After studying it carefully, his mind also fell into confusion.

It's still too difficult, there is no way to understand it.

You have to resort to scratch paper, and you have to retreat for dozens of days to understand the research.

But despite this, Zhang Yi also knew in his heart that Teacher Qin's ability was far above himself.

The funny thing is that he still wants to challenge Teacher Qin.

It's really self-inflicted.

Finally got the kitchen done.

Qin Cheng returned to the living room, intending to call Dean Sang and Zhang Yi to dinner.

By the way, ask what Zhang Yi just had to say.

"Dean Sang has eaten, coarse tea and light rice, please don't dislike it."

Qin Cheng smiled.

Then he turned to look at Zhang Yi.

"What happened to you just now?"

"Directly said, what are you doing?"

That....

When Zhang Yi heard this, he was a little embarrassed.

Now he knows the progress of Teacher Qin's research on Hodge's conjecture.

He also opened his mouth to challenge, so isn't this a brain-dead act?

"Well, that's right, my mother asked me to come and ask, when will you officially marry my sister and then be my brother-in-law."

That's it?

When Qin Cheng heard this, his brows frowned and he looked at Zhang Yi seriously.

It doesn't feel like this brother-in-law is telling the truth.

Seeing this, Zhang Yi turned his head away from Qin Cheng, and his back sweated coldly.

The heart shouted for mercy.

"Teacher Qin, brother-in-law, I was wrong, I don't dare to be presumptuous in front of you anymore."

"Sister, come and save me."

After a while, Qin Cheng chuckled.

"I can do it at any time, mainly depending on what your sister means."

As soon as these words came out, Zhang Yi was completely relieved.

Teacher Qin's aura was too scary.

At the same time, Qin Cheng snickered in his heart.

Dare to challenge the old man?

One look scares you to death.

Qin Cheng had already known Zhang Yi's thoughts from the feedback from his disciples.

Just now it was all teasing him.

This big disciple really needs to be beaten all the time.

"Are you sure you're okay? Don't want to challenge me?

"What challenge?" How come I've never heard of Zhang Yi? "

Hehe, this big filial piety....

At the dinner table, Dean Sang kept asking about Hodge's conjecture.

Qin Chengdu did not hesitate to explain it to Dean Sang.

As for whether Dean Sang could understand it, it was none of Qin Cheng's business.

"The taste of this Hunan cuisine is really good, Mr. Qin, our Qingbei Institute of Mathematics has just hired a Hunan cuisine chef, are you interested in tasting it in Qingbei?"