Timeline for A definition related to pseudoprimes and the Dedekind psi function
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| May 9, 2022 at 15:15 | comment | added | user142929 | Many thanks, please add your name as author of the entry of the OEIS sequence, I call/define this sequence as Luca-Somer numbers but feel free to edit as you consider. Many thanks for your attention and help adding excellent answers @MaxAlekseyev | |
| May 9, 2022 at 15:11 | comment | added | Max Alekseyev | I've added such $n$ to the OEIS as sequence A353868. | |
| May 8, 2022 at 16:25 | comment | added | user142929 | Professor @GerryMyerson the definition of Rotkiewicz numbers is the similar relation that I refer in my definition, but with a divisor function, see [1] or [2] Florian Luca and Lawrence Sommer, A remark on a question of Rotkiewicz, Colloq. Math. (submitted 2000), pages 1-5. Many thanks for your feedback. | |
| May 8, 2022 at 16:25 | history | edited | user142929 | CC BY-SA 4.0 |
Added the definition of the Dedekind psi function.
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| May 8, 2022 at 1:51 | comment | added | Gerry Myerson | It would be so much better, 142929, if you would include the definitions of Dedekind psi and of Rotkiewicz numbers in the body of your post. | |
| May 7, 2022 at 19:11 | comment | added | reuns | The exponent of $\Bbb{Z}/n\Bbb{Z}^\times$ is the lcm of the $(p-1)p^{k-1}$ where $p^k\| n$ (unless $p=2,k\ge 3$ in which case it is $2^{k-2}$) and you want it to divide $\psi(n)$. | |
| May 7, 2022 at 16:39 | comment | added | user142929 | I would like to dedicate the post to these professors who wrote the book, Michal, Florian and Lawrence. | |
| May 7, 2022 at 16:39 | history | asked | user142929 | CC BY-SA 4.0 |