Timeline for Perfect Difference Set of order 7^2-7+1=43
Current License: CC BY-SA 4.0
7 events
when toggle format | what | by | license | comment | |
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Aug 6, 2018 at 14:12 | vote | accept | JKreft | ||
Aug 3, 2018 at 9:01 | history | edited | JKreft | CC BY-SA 4.0 |
Changed Title with New Information
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Aug 3, 2018 at 9:00 | answer | added | JKreft | timeline score: 1 | |
Aug 3, 2018 at 8:41 | comment | added | JKreft | YES! I'd never heard of them before. I have the necessary condition (in a different form) that n=j^2+j+1. Ah, I see that it's not a prime power (since k=7, j= 6), which all my other j's are. | |
Aug 3, 2018 at 7:40 | comment | added | Seva | Are perfect difference sets what you are after? | |
Aug 3, 2018 at 5:48 | comment | added | JKreft | The $a_i$ allow a "tiling" of the space by incrementing $\bmod n$. That is, if I take the $n$ additive translations of the list of $a_i$, I get $n$ $k-$element lists where each pair of translations has exactly one element in common. | |
Aug 3, 2018 at 5:44 | history | asked | JKreft | CC BY-SA 4.0 |