Timeline for Proof that $x^2 + y^2 - z^2$ is universal
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Oct 15, 2020 at 1:42 | comment | added | Zhi-Wei Sun | See Section 5 of a paper of mine published in 2017 available from maths.nju.edu.cn/~zwsun/179b.pdf | |
| Oct 14, 2020 at 15:31 | answer | added | Will Jagy | timeline score: 2 | |
| Oct 14, 2020 at 13:29 | history | edited | YCor | CC BY-SA 4.0 |
added link
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| Oct 14, 2020 at 13:27 | comment | added | jeq | Dickson's 1929 paper is available at projecteuclid.org/euclid.bams/1183493098 | |
| Oct 14, 2020 at 13:27 | comment | added | YCor | In particular, I wouldn't call the first who stated it the "first who proved it". Dickson was maybe the first who addressed the question in this generality. | |
| Oct 14, 2020 at 13:24 | comment | added | Wojowu | This fact is an immediate consequence from the fact $y^2-z^2$ represents all odd integers, which I imagine goes back centuries. I have no slightest clue when this statement could have first appeared explicitly though | |
| Oct 14, 2020 at 12:55 | history | edited | Amir Sagiv |
relevant tags added
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| Oct 14, 2020 at 12:51 | history | asked | Byungchul Cha | CC BY-SA 4.0 |