Timeline for Maps between K-groups induced by rings homomorphism
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
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| May 31, 2022 at 16:15 | history | edited | Glorfindel | CC BY-SA 4.0 |
broken link fixed
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| Nov 10, 2019 at 23:09 | comment | added | Hailong Dao | @sde: by examining the link, it seems I meant this one: arxiv.org/abs/0912.1629 | |
| Nov 3, 2019 at 4:09 | comment | added | sdey | The link you provide saying a recent example is broken, could you please provide a new link ? Thanks | |
| Mar 5, 2010 at 16:06 | history | edited | Steve Huntsman |
arxiv tag for k-theory
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| Jan 18, 2010 at 1:54 | history | edited | Hailong Dao | CC BY-SA 2.5 |
added 887 characters in body
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| Jan 18, 2010 at 0:45 | answer | added | Clark Barwick | timeline score: 7 | |
| Dec 19, 2009 at 3:37 | answer | added | Frank Moore | timeline score: 2 | |
| Dec 19, 2009 at 0:23 | comment | added | t3suji | I'm probably stating the obvious... but I'd say the whole point is that we have two K-groups associated with a ring (one formed by looking at finitely generated modules, and one by looking at finitely generated projective modules), which coincide for regular rings. One of them is covariant functor (with respect to all homomorphisms), one of them is contravariant (with respect to finite homomorphisms). This is very similar to other situations (e.g.: homology pushes forward, cohomology pulls back; functions restrict, distributions have trace...) so the set-up seems natural to me. | |
| Dec 18, 2009 at 22:03 | comment | added | Hailong Dao | Great! I have not had much success with technical questions on MO so far, so may be you will change that (: | |
| Dec 18, 2009 at 21:44 | comment | added | David E Speyer | I would also like to know the answer to this question. | |
| Dec 18, 2009 at 21:33 | history | edited | Hailong Dao | CC BY-SA 2.5 |
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| Dec 18, 2009 at 21:22 | history | asked | Hailong Dao | CC BY-SA 2.5 |