Timeline for Non-free projective pearls (general and Abelian)
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| May 13, 2017 at 17:07 | history | edited | Keith Kearnes | CC BY-SA 3.0 |
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| May 13, 2017 at 17:03 | comment | added | Keith Kearnes | I use "structure-preserving" to mean $s\in S$ implies $f(s)\in T$, and I use "structure-reflecting" to mean $f(s)\in T$ implies $s\in S$. One of your concepts I would call "structure preserving", and the other I would call "structure preserving and reflecting". | |
| May 13, 2017 at 16:50 | comment | added | მამუკა ჯიბლაძე | Would not a structure preserving morphism $f:(G,S)\to(H,T)$ satisfy $S=f^{-1}(T)$ rather than just $f(S)\subseteq T$? | |
| May 13, 2017 at 16:34 | history | answered | Keith Kearnes | CC BY-SA 3.0 |