Timeline for Permutations of squares and finite fields
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Dec 3, 2018 at 13:28 | comment | added | Zhi-Wei Sun | If $p$ is an odd prime and $A=\{x^2:\ x\in\mathbb F_p\}$, then by the Cauchy-Davenport theorem we have $|A+A|\ge\min\{p,2|A|-1\}=p$ and hence $A+A=\mathbb F_p$. | |
| Dec 3, 2018 at 11:57 | history | edited | zabroshenie goroda | CC BY-SA 4.0 |
edited body
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| Dec 3, 2018 at 11:25 | history | edited | zabroshenie goroda | CC BY-SA 4.0 |
added 1 character in body
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| Dec 3, 2018 at 11:20 | history | answered | zabroshenie goroda | CC BY-SA 4.0 |