348: C348 Sieve Method

C348 Sieve Method

If he could prove it, then everything would be fine. But if he couldn't, then Qin Luo's reputation would be completely tarnished, and he might even have to bear the name of someone who was biting off more than he could chew.

Too ambitious? Courting death?

Hearing Father Ye's words, Ye Liang nodded his head in agreement.

Qin Luo was courting his own death.

Qin Luo didn't hear the father and son's mocking laughter, but even if he did, Qin Luo would only smile.

As a bookworm with a system, he really couldn't take the father and son seriously.

Even after Ye Liang made a wonderful report on topological functions, it was the same.

Qin Luo wrote very slowly. Every word, every word, and every word were carefully written, but as time went on, more and more calculations appeared on the whiteboard.

"1. If D cannot be next to ABC at the same time, then the color will not increase. If D cannot be next to C, then the DC will use one color."

"2. If D and ABC are next to each other at the same time, on the plane, D will be at the center or the periphery of ABC."

" 3... "

5 minutes, 10 minutes, half an hour...

Time passed, and the noisy chatter slowly died down. The clear and hearty voice died down, and in the end, even the sound of breathing ceased. The entire lecture hall fell into a deathly silence.

"Did you bring pen and paper?" When Qin Luo's formula took up more than half of the whiteboard, Wang Xuecai turned his head and looked at the assistant behind him.

The assistant was a graduate student, about twenty-four or twenty-five years old. When he heard Wang Xuecai's words, he immediately took out pen and paper from his briefcase and handed them to Wang Xuecai.

"Give me one too." Soong Baoguo suddenly said.

"And me." In the next second, Zhou Haizhong did not want to be outdone.

The assistant's mouth twitched. He quietly emptied his briefcase.

"Thank you."

Wang Xuecai smiled and nodded. He took the pen and paper and put them on his knees. His eyes gradually became serious.

But after a moment, his eyebrows gradually furrowed.

As one of the leading figures in China's mathematics world, he was one of the people who walked the furthest in China's mathematics world. He understood the problem better than others.

The method Qin Luo used was slightly different from the usual method. He used the sieve method!

After sifting out all the impossible, the only answer was the answer!

However, countless examples had proved that the four-colored conjecture might not be suitable for the sieve method.

What exactly did he want to do? The wrinkles on Wang Xuecai's forehead became deeper and deeper. He unscrewed the pen cap and began to count on the notebook.

On the other side, the Ye father and son sitting in the corner did not look worried at all. Instead, they had smiles on their faces.

Like Wang Xuecai, they were also the best in the mathematics field. Among them, Ye Liang was also a professor in the mathematics department of John Hopkins University. This was enough to show that his ability was extraordinary.

Therefore, Wang Xuecai could understand Qin Luo's argument, and he could also understand it.

Looking at Qin Luo's debate process, which was full of whiteboards, Ye Liang's lips curled up.

"Sieve method!"2

What did he want to do?

Not only was he thinking about this problem, Ye Kang was also thinking about it.

The sieve method was a common method of proof in the mathematical analysis process.

However, this mathematical proof method was only suitable for some specific conjectures.

The four-colored conjecture was not included.

The reason was very simple. There were too many possibilities for the four-colored conjecture, so there was no way to filter it out.

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