Timeline for A name for the inverse image of the center of a quotient group?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Sep 3, 2013 at 5:06 | comment | added | Marc Palm | That's the notation for centralizer of N in G. | |
| Jul 4, 2013 at 20:16 | history | edited | Giuliano Bianco | CC BY-SA 3.0 |
added 6 characters in body
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| Jul 4, 2013 at 19:31 | comment | added | Yassine Guerboussa | I suggest $Z_G(N)$, $N$ normal in $G$, and I would call it the center of $G$ modulo $N$. The precenter of $f$ is the center of $G$ modulo $ker(f)$, for brevity $Z_G(f)$ (or $Z(f)$). (Is it useful to see Group Theory from a categorical aspect?). Sincerely. | |
| Jul 4, 2013 at 18:12 | comment | added | Giuliano Bianco | @YassineGuerboussa Make your proposal then! The sense of mine was to be somewhat categorical, the morphisms and not the objects are the heroes... | |
| Jul 4, 2013 at 18:07 | comment | added | Yassine Guerboussa | To my mind, it is better to find a notation that does not refer to any homomorphism, only to the subgroup and the whole group. | |
| Jul 4, 2013 at 17:49 | history | answered | Giuliano Bianco | CC BY-SA 3.0 |