Timeline for Reconstructing elements of $\mathbb Q$ in $\mathbb Z_p$
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Sep 9, 2021 at 10:42 | comment | added | Roland Bacher | Thank you very much. | |
| Sep 9, 2021 at 10:28 | comment | added | Henri Cohen | In Pari/GP: $z=355/113+O(7^{20})$; bestappr(z,10^10) answers 355/113. Even better: $z=\sqrt{-1+\sqrt{-1+O(5^{20})}}$;algdep(z,4) answers $x^4+2*x^2+2$. | |
| Sep 9, 2021 at 10:06 | comment | added | Dror Speiser | Yes. Look up Gauss lattice basis reduction, and apply it to $\{(x\pmod{p^k} , 1) , (p^k,0)\}$. | |
| Sep 9, 2021 at 10:03 | history | edited | YCor |
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| Sep 9, 2021 at 9:51 | history | asked | Roland Bacher | CC BY-SA 4.0 |