Chapter 382

Five minutes later, Tsari-chan ran back out of breath.

"Great God, I borrowed my classmate's library card, you use it first. Chari gasped and handed a library card to Cheng Nuo.

Cheng Nuo took it and said with a smile, "Thank you." ”

"No, no thanks. Chali hurriedly waved his hand, scratched his head, and said to Cheng Nuo with a smile, "Great God, let's go in together." ”

"Let's go!"

The two went in smoothly, first found an empty table and put down the schoolbag, and then walked to the mathematics section of the library under the guidance of Chari.

There are ten rows of bookshelves, all densely packed with books related to mathematics subjects, not to mention hundreds of thousands of books.

The scope of coverage includes all kinds of books in almost all branches of mathematics from easy to difficult.

Standing in front of the bookshelf, Cheng Nuo was dazzled.

This...... It's heaven on earth!

Holding back the excitement in his heart, he took a deep breath and searched for the books he needed step by step.

In three or four days, he will be back in the office and working on a new project with Professor Fresnel.

And that new project, Cheng Nuoguess should still belong to the field of geometry.

Of all the branches of mathematics, geometry is not Cheng's best field. Of course, in terms of Cheng Nuo's ability in geometry, it is naturally more than enough to serve as Professor Fresnel's assistant.

But Cheng Nuo's goal is not so narrow.

Taking advantage of the time to charge more is what Cheng Nuo has to do.

Modern European Geometry

Affine Differential Geometry

Ackermann Turns to Geometry

............

Cheng Nuo quickly turned on the harvesting mode, saw the book he was interested in, and pulled it out directly from the shelf.

He didn't expect to be fat in one go, and when he saw that the books in his hand were stacked high, he stopped harvesting.

On the way back to the desk, Cheng Nuo happened to be the location of the book collection in the number theory area, and after a faint glance, he was suddenly attracted by the name of a book: "The Development and Recent Situation of the ABC Conjecture".

I happened to listen to a lecture on ABC conjecture yesterday, so as soon as he saw the name, Cheng Nuo subconsciously pulled out the book and put it into his "book stack".

So when Chali came back with two books, the scene he saw was Cheng Nuo holding a stack of books more than half a meter high and gnawing.

While gnawing, there was an intoxicated expression on his face.

Classmate Chari wiped a handful of non-existent sweat on his forehead, and muttered in his heart, "A great god is a great god, and even the way of reading books in the library is so different!"

After thinking about it, he sat opposite Cheng Nuo, picked up the book and read it.

Even though the number is in English, Cheng Nuo's reading speed is not slower than usual.

A book of more than 100 pages can only last for half an hour under Cheng Nuo.

As time passed, Cheng Nuo's geometry skill points continued to soar.

Geometry is one of the oldest of all the branches of mathematics. From the period of the four ancient civilizations to the present, I am afraid that it has a history of more than 3,000 years.

Thousands of years of accumulation and development have made geometry a very advanced subject.

Even Professor Fresnel, who stands at the top of the world's mathematics community, probably doesn't dare to say that he can study this discipline thoroughly, let alone the current Cheng Nuo.

He is like a sponge in the vast sea, absorbing the moisture of knowledge as much as possible.

Mathematics makes people happy. That's a good point.

When you are sorrowful, take out a math book and study it carefully, and it will make you forget your sorrows.

When you are happy, you should also take out a math book and savor it slowly, and you will definitely be even happier!

Cheng Nuo was in such a state, he was already in a good mood, but after reading three or four books on geometry, his heart became even more beautiful.

Cha Li on the opposite side was reading a book, and looked up from time to time to observe Cheng Nuo's face.

Seeing the increasingly raised corners of Cheng Nuo's mouth, Tsari's classmates couldn't help but be even more confused.

After a while, Cheng Nuo was a little tired of reading books on geometry, so he casually took the thin book "The Development and Recent Situation of the ABC Conjecture" in front of him.

The ABC conjecture has been known before, but its difficulty has never been seriously studied.

But it is recognized that, apart from six of the seven millennial conjectures that have not yet been resolved, the ABC conjecture is in the second echelon.

Even compared to the Goldbach conjecture, the difficulty alone is a notch higher.

Now, Cheng Nuo wants to really experience it.

Turning the first page, Cheng Nuo roughly browsed the catalog.

Sure enough, all the books about the ABC conjecture, Ueda Shinichi is a hurdle that cannot be bypassed. About a third of the book is devoted to Shinichi Ueda.

Compared to the famous members of the mathematical conjecture family, such as the Riemann conjecture, the Goldbach conjecture, the twin prime conjecture, and the (proven) former Fermat conjecture, the ABC conjecture is very "senior", because the other conjectures are "old-timers" over 100 years old.

This conjecture was proposed in 1985 and was not well-known at the time, but it only came into the field of vision of mathematicians around the world after later generations noticed the importance of this conjecture.

In fact, the content of the ABC conjecture is the same as Goldbach's conjecture, and it is not difficult for ordinary people to understand:

The ABC conjecture is for positive integers (A, B, C) that satisfy two simple conditions. The first of these conditions is A and B mutusons, and the second condition is A+B=C.

Obviously, there are an infinite number of positive integers that satisfy this condition—such as (3, 8, 11), (16, 17, 33)....... In order to elicit the ABC conjecture, take (3, 8, 11) as an example and make a simple calculation of "three steps":

(1) multiply A, B, and C (the result is 3×8×11=264);

(2) prime factorization of the product (the result is 264=23×3×11);

(3) Multiply all the different primes in the prime number decomposition (the result is 2×3×11=66).

Now, if you compare the greater of the three numbers A, B, and C (i.e., C) with the result of step 3, you will see that the latter is greater than the former. If you look at any other example, you are likely to find the same result.

But this is not a rule, there are countless counterexamples, such as (3, 125, 128), etc., but if the result of (3) is added to a power greater than 1, then the number of counterexamples will become finite.

In simple terms, the ABC conjecture is a conjecture that allows for the existence of counterexamples.

Therefore, the method of using supercomputing to find counterexamples to prove conjectures is not applicable to this problem at all.

After reading the question, Cheng Nuo took out a piece of scratch paper and wrote and drew on it for a while.

Half an hour later, I could only sigh dejectedly, "It's difficult!"

Sure enough, this kind of world-class conjecture is not something that can be found on the bewitching jian.

This conjecture is really very interesting!

No clue, no clue.

Cheng Nuo didn't read the analysis of this conjecture by several math bigwigs later in the book, he tried a wave alone, but found that the whole line was defeated.

He couldn't find any way to overcome this conjecture.

It's uncomfortable!