Timeline for 4-manifolds with finite fundamental group and spherical boundary
Current License: CC BY-SA 3.0
18 events
| when toggle format | what | by | license | comment | |
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| Aug 17, 2017 at 15:39 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jul 18, 2017 at 15:03 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 18, 2017 at 14:34 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| May 19, 2017 at 14:07 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Apr 19, 2017 at 13:22 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Mar 20, 2017 at 12:49 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Feb 18, 2017 at 21:20 | comment | added | Ryan Budney | Your question seems a little vague. Yes, certainly there are other assumptions that would get you to your conclusion. . . but that isn't very specific. Could you focus your question a little bit? | |
| Feb 18, 2017 at 12:04 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jan 19, 2017 at 11:13 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Dec 20, 2016 at 15:28 | comment | added | Danny Ruberman | Perhaps you could provide some context for the question; does it come from some particular circumstance? There is a 3-manifold that is a connected sum as described. Do you know something else? Are you given some information about a 4-manifold that it bounds? | |
| Dec 20, 2016 at 10:44 | history | edited | Topology Student | CC BY-SA 3.0 |
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| Dec 20, 2016 at 5:22 | answer | added | David Snyder | timeline score: 1 | |
| Dec 19, 2016 at 23:07 | comment | added | Topology Student | I am interested in keeping the $M$ has $\pi_1(M) < \infty$ and $\partial M$ is a connected sum of elliptic manifolds and $S^2 \times S^1$'s conditions. I would like to know what some sufficient conditions for $\partial M$ to be an elliptic manifold are. The assumption that $\partial M$ is incompressible, which with $\pi_1(M) < \infty$ implies $\pi_1(\partial M) < \infty$, seems too strong as it supersedes the other condition on $\partial M$. | |
| Dec 18, 2016 at 21:11 | comment | added | Danny Ruberman | I'm not sure I understand the question; which hypotheses do you want to delete and which do you want to retain. Also, why does $\partial M$ being incompressible and also a sum of spherical manifolds imply that there's only one summand? | |
| Dec 18, 2016 at 14:28 | comment | added | Topology Student | By incompressible I meant that the homomorphism between fundamental groups induced by the inclusion map $i:\partial M \rightarrow M$ is injective. | |
| Dec 18, 2016 at 7:54 | comment | added | Ryan Budney | What convention are you using for a 4-manifold having an incompressible boundary? | |
| Dec 18, 2016 at 1:57 | history | edited | Topology Student | CC BY-SA 3.0 |
added 17 characters in body
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| Dec 18, 2016 at 1:50 | history | asked | Topology Student | CC BY-SA 3.0 |