Timeline for Can we color Z^+ with n colors such that a, 2a, ..., na all have different colors for all a?
Current License: CC BY-SA 2.5
3 events
| when toggle format | what | by | license | comment | |
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| May 29, 2010 at 16:32 | comment | added | Ewan Delanoy | You're right Sergei, the proof of lemma 2 needs to be corrected. | |
| May 29, 2010 at 16:02 | comment | added | Sergei Ivanov | You need $f$ to be bijective on 1..n. How to avoid clashes like f(15)=f(8)? | |
| May 29, 2010 at 15:54 | history | answered | Ewan Delanoy | CC BY-SA 2.5 |