Timeline for Subset of Spec(A) realized as inverse image of some Spec(B)
Current License: CC BY-SA 3.0
10 events
when toggle format | what | by | license | comment | |
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S Oct 30, 2013 at 11:49 | history | suggested | Cantlog |
add a relevant tag
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Oct 30, 2013 at 11:36 | review | Suggested edits | |||
S Oct 30, 2013 at 11:49 | |||||
Oct 30, 2013 at 11:35 | answer | added | Cantlog | timeline score: 3 | |
Oct 29, 2013 at 9:41 | history | edited | user7d229955 | CC BY-SA 3.0 |
edited title
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Oct 29, 2013 at 8:03 | answer | added | Laurent Moret-Bailly | timeline score: 7 | |
Oct 28, 2013 at 19:02 | comment | added | Qiaochu Yuan | Spec, as a functor taking values in sets or even topological spaces, is not a good functor. In particular it is not faithful (e.g. it can't distinguish between any parallel pair of morphisms with domain a field) so there's no reason to expect anything like your second question to be true. | |
Oct 28, 2013 at 15:11 | comment | added | David White | Just so you know, there's another use of the term "ring spectrum" in the vernacular. To me, it means a monoid in the category of spectra. Maybe you could change your title to say "subset of Spec(A) realized as inverse image of some Spec(B)" or to say spectrum of a ring rather than ring spectrum? Or not, it's not a big deal. | |
Oct 28, 2013 at 15:11 | answer | added | Julian Rosen | timeline score: 7 | |
Oct 28, 2013 at 14:42 | review | First posts | |||
Oct 28, 2013 at 14:56 | |||||
Oct 28, 2013 at 14:27 | history | asked | user7d229955 | CC BY-SA 3.0 |