When I am reborn, I just want to be a top student

Chapter 259: I looked down on you before, but now I can’t afford it
University of New Hampshire, Department of Mathematics.

Zhang Yitang has been paying attention to Wang Donglai's news since he proved Huo Qi's guess.

He was becoming more and more shocked.

Until Goldbach's guess was proven, Zhang Yitang was shocked beyond words.

The reasons are many and complex.

But the most important thing is that Wang Donglai proved that the topological group theory conjectured by Goldbach is very important to him, very important.

To put it bluntly, as long as he has a thorough understanding of topological group theory, he will be able to make a huge breakthrough in the proof of twin prime numbers. By then, he may not be unable to win the Fields Medal.

However, he did not participate in the Global Mathematicians Conference at that time and missed such a good opportunity.

Even after the fact, he used various means to analyze and study Wang Donglai's proof process, and he only made some slight breakthroughs.

During this period of time, he has been in his office, trying to achieve a breakthrough through the topological group theory information of Scale Claw, but he still fell short.

"call!"

Now, the two of them are just ordinary acquaintances, not even friends.

The last time he refused Xu Songyao's invitation, he undoubtedly refuted his face.

However, although he looked extremely tired, his energy and energy were not bad at all.

After ten breaths, this moment became extremely long.

Taking out his cell phone, Zhang Yitang dialed a number on the keyboard.

Xu Songyao did not accept Zhang Yitang's congratulations, but instead spoke in an official tone.

Although Tangdu Jiaotong University was also one of the top universities in the country, at that time, Tangdu Jiaotong University only relied on its profound historical background, but its ranking was gradually declining, and it was obviously declining.

If any acquaintance could see what he looked like at this time, they would definitely be shocked.

He originally thought he would never contact the owner of this number again.

A cheerful voice came from the other end of the phone, but after hearing this, Zhang Yitang's face suddenly became a little ugly, mostly embarrassed.

"I thought I was wrong, but I didn't expect you to call me, Lao Zhang."

After finishing speaking, Zhang Yitang quietly waited for Xu Songyao's reply.

"Before, I was short-sighted and missed the opportunity. Do I still have a chance now?"

Xu Songyao on the other end of the phone seemed to be stunned. He paused for a few breaths before speaking out: "Because we are being invited by domestic and foreign scholars, the invitation conditions are still being discussed, and the specifics have not been decided yet. , there will still be some threshold.”

Although Zhang Yitang's face was a little ugly, it changed instantly and he said congratulations in a familiar tone.

After saying two regrets in succession, Zhang Yitang's eyes suddenly became firm, as if he had made some decision.

Zhang Yitang sighed inwardly. He was not a fool and could fully understand the meaning of Xu Songyao's words.

Finally, the call was connected.

Xu Songyao, who was at Jiaotong University in Tangdu at the moment, was also a little stunned. He didn't expect that Zhang Yitang, who had such a tough temper, would actually say such a thing, but in just a second thought, he figured it out.

On the contrary, he looked quite excited, with weakness and excitement coexisting, revealing a sense of weirdness.

Although there is no enmity, the relationship between the two has become extremely cold.

"duo~"

But in just two years, the situation has changed dramatically.

Zhang Yitang sighed in a low voice, his tone full of regret.

Every sound made Zhang Yitang feel nervous and uneasy.

"It's a pity. I wish I could have known about the existence of topological group theory earlier."

"This is definitely true. We are also drawing up the specific list of invited scholars."

"What a pity! What a pity!"

Zhang Yitang took a deep breath and then asked calmly: "Songyao, I see that your school has another announcement, saying that it invites domestic and foreign scholars to join the Institute of Advanced Mathematics at your school. What invitation is there? Conditions?"

Even if Wang Donglai appears, many people don't think it will bring much change to Tangdu Jiaotong University.

But he didn't expect that in such a short period of time, he would take the initiative to contact them.

After taking a long breath, Zhang Yitang put down the pen in his hand.

Zhang Yitang was already prepared for this and said, "Songyao, I saw an announcement from your school that academic discussions will be held in September. Is this true?"

After extinguishing the distracting thoughts in his mind, Zhang Yitang dialed the number with his fingers.

The Institute of Advanced Mathematics was established at Jiaotong University in Tangdu, and Wang Donglai must be one of them.

"Lao Zhang, don't say that. The appointment has not been made yet. Who will serve as the principal is a matter for the organization to consider. No matter who is appointed, I will abide by the organization's decision!"

The person chatting with Zhang Yitang was Xu Songyao from Tangdu Jiaotong University.

"Songyao, I heard that you are going to become a regular employee, congratulations!"

Zhang Yitang nodded and asked calmly: "Songyao, you know the direction of my research."

Because he now has extremely dark circles under his eyes and his eyes are dull.

With Wang Donglai's current academic talent and achievements, the future development of the Department of Mathematics at Tangdu Jiaotong University is limitless.

Xu Songyao knew all this.

Therefore, in just a moment, he figured out Zhang Yitang's inner thoughts.

After pondering for a moment, Xu Songyao said: "Old Zhang, there is definitely an opportunity, but it depends on whether you can seize it."

A smile suddenly appeared on Zhang Yitang's face, and he said decisively: "Songyao, I understand. I will resign from my job at the University of New Hampshire. I will finish the work here and return to China."

Hearing Zhang Yitang's statement, Xu Songyao's tone softened and said: "Old Zhang, it's a good thing that you want to come back. It just so happens that you can come back to participate in academic seminars and see the development of domestic mathematics."

"That's it. After staying abroad for so many years, I also want to come back. This happens to be a good opportunity."

Zhang Yitang said in agreement.

"Well, then contact me when you return to China." Xu Songyao said to Zhang Yitang.

"it is good!"

After hanging up the phone, Zhang Yitang started typing on the keyboard and quickly wrote a resignation letter.

On the other side of the ocean, at Jiaotong University in Tangdu, Xu Songyao had a cheerful smile on his face after hanging up the phone.

"It's great, it's really great!"

In the past few days, Xu Songyao has received a lot of phone calls. Some people congratulated him on his promotion, some asked about him in a roundabout way, and some even showed kindness to him.

Among them, some came because of their own promotions, some came because of academic discussions, and some came because of the Institute of Advanced Mathematics at Tangdu Jiaotong University. Zhang Yitang's call was not the first. In the past few days, Xu Songyao's calls had not stopped.

There are not a few scholars who think the same as Zhang Yitang, but there are more domestic scholars and professors than foreign ones.

Among these people, Zhang Yitang is also the most talented in mathematics.

Xu Songyao has known Zhang Yitang for so many years, and he is very aware of Zhang Yitang's mathematical talent.

If it weren't for proving twin prime numbers, Zhang Yitang would have made a breakthrough long ago in another field of mathematics.

From Xu Songyao's perspective, he naturally hopes that the scholars who join Tangdu Jiaotong University's Institute for Advanced Mathematics will be as talented as possible.

Therefore, Xu Songyao is willing to accept Zhang Yitang.

However, the reason why he did not agree immediately was not only to whet Zhang Yitang's appetite, but also to respect Wang Donglai's ideas.

The core of the Institute of Advanced Mathematics is Wang Donglai.

Xu Songyao has never forgotten this. Although Wang Donglai is unwilling to assume leadership positions, he cannot do these things over Wang Donglai.

At least we should inform and discuss it in advance.

Thinking about it, Xu Songyao called Wang Donglai.

"Lai Dong, Professor Zhang Yitang from the University of New Hampshire is planning to return to China and join the school's Institute of Advanced Mathematics. What do you think?"

"I had invited you before, but he rejected it. Now I see that you have proved Goldbach's guess. You just called and revealed this intention."

Wang Donglai was looking through the company's reports at Galaxy Technology when he received a call from Xu Songyao.

"Uncle Xu, you shouldn't ask me about this kind of thing. You are the principal. This matter should be decided by you. It doesn't matter if you ask me for my opinion."

Wang Donglai did not answer, but instead handed the decision-making power on this matter to Xu Songyao.

Hearing what Wang Donglai said, Xu Songyao said angrily: "The Institute of Advanced Mathematics in our school is prepared for you, and it was built because of you. You are the most important, so this opinion is just for you." I have to listen to you."

"No, no, no!"

"Uncle Xu, please don't say that. I am only twenty years old. I am young and inexperienced. I don't understand many things. I am just an ordinary professor in school. This kind of thing, Uncle Xu Just decide for yourself.”

"Besides, most of my energy will be put on other places in the future, and I will put aside mathematics for a while, so the school's Institute of Advanced Mathematics still needs the school to pay more attention to it."

Wang Donglai refused again and again. He really didn't want to get involved in these things.

It's trivial, a waste of energy, and of little benefit.

If possible, he would rather teach, so as to cultivate some talents.

Xu Songyao also heard the firmness in Wang Donglai's words, so he stopped insisting and said, "Well, since you said so, I have made a decision. Zhang Yitang's academic achievements in twin prime numbers are still good. Yes, I believe that if I can understand your topological group theory, the proof is not far away.”

"That's why he thought about returning to China and joining the school's Institute of Advanced Mathematics, and that's why he made such a low profile."

"I asked for your opinion for this reason. When the time comes, it may have some impact on you. If you find it troublesome, then reject him. If possible, I will keep him!"

Wang Donglai nodded, knowing that Xu Songyao was telling the truth and not lying to himself, so he said loudly: "Uncle Xu, then stay, the mathematics department of our school really needs these people."

Xu Songyao laughed heartily and said: "Okay, with your words, then I can do it with confidence and boldness."

……

Time flies and it’s August.

The academic journal "Mathematics Future" of Tangdu Jiaotong University was officially launched.

The content of the first issue is exactly Wang Donglai's "Explanation of the Proof Process and Ideas of Goldbach's Conjecture"

If it is an ordinary academic journal that has just been launched, if the number of subscriptions can exceed 10,000, it is considered to be a high-profile one.

Before Tangdu Jiaotong University's "Mathematical Future" was published, many people in the academic world were secretly guessing how many subscriptions it would have.

Some people guessed 10,000, some guessed 30,000, and some guessed 50,000.

The reason why they give such high guess data is because they believe that Goldbach's guess is so powerful.

However, they do not think that the number of subscriptions for "Mathematical Future" will be so high in the future. It will only get lower and lower, and finally reach the position where it should be.

At a time when everyone in the mathematics community had different ideas, "The Future of Mathematics" was published.

The number of subscriptions exceeded 100,000 on the first day.

And this is just domestic.

University professors and scholars, private mathematicians, mathematics enthusiasts, students, etc. have all subscribed.

After the journal was released, scholars and professors in the field of mathematics at home and abroad finally saw the complete and detailed paper, and they all fell into detailed and in-depth research and verification.

however.

As the most important protagonist in this incident, Wang Donglai was busy with another thing.

That is the development of solid-state batteries!

With his magical abilities and skills, Wang Donglai has made rapid progress in solid-state battery research and development after such a long period of research and development.

However, the closer we look, the moment we are about to complete a breakthrough.

The real R&D conundrum for solid-state batteries arises.

Real solid-state batteries have various advantages, but equally, it becomes extremely difficult to improve the yield rate and reduce costs.

This is mainly due to the principle limitations of solid-state batteries.

Nowadays, lithium batteries are the mainstream. The structure is an electrolyte filled inside the battery. The electrolyte is a channel for lithium ions to move back and forth. The charging and discharging process of lithium ion batteries is the process of embedding and deintercalation of lithium ions. During the intercalation and deintercalation process of lithium ions, the same amount of electrons as lithium ions are intercalated and deintercalated. During the charging and discharging process, lithium ions cycle back and forth between the positive and negative electrodes to be intercalated and deintercalated.

When the battery is charging, lithium ions are generated on the positive electrode, and the generated lithium ions move to the negative electrode through the electrolyte. The carbon used as the negative electrode has a layered structure with many micropores. The lithium ions that reach the negative electrode are embedded in the micropores of the carbon layer. The more lithium ions are embedded, the higher the charging capacity.

Solid-state batteries are different. The biggest difference from the current mainstream traditional lithium-ion batteries lies in the electrolyte. Solid-state batteries use solid electrolytes to replace the electrolytes and separators of traditional lithium-ion batteries.

Traditional lithium-ion batteries mainly consist of positive and negative electrode materials, electrolytes and separators.

The positive and negative electrode materials determine the capacity of the battery, and the electrolyte and separator serve as the medium for transporting lithium ions.

Now, there are three schools of solid-state batteries on the market, namely oxide system, sulfide system and polymer system.

Solid-state batteries based on oxide systems use a metal negative electrode and an electrolyte made of rare earth oxides, such as lanthanum.

No matter which one of these three schools, they all need to use rare earth elements, so the cost will be greatly increased.

The original physics problem also involves materials science.

The biggest feature of materials science is that it is uncontrollable and has too many variables. It takes time to conduct experiments one by one to know the best formula.

Wang Donglai's research on solid-state batteries is stuck at this step.

(End of this chapter)