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S Oct 30, 2013 at 11:49 history suggested Cantlog
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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
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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