Timeline for Is the composition of two bundle projections necessarily a bundle projection?
Current License: CC BY-SA 3.0
7 events
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| Sep 8, 2011 at 0:51 | comment | added | Georges Elencwajg | Dear Michael: yes, as shown by Torsten's and Ben's fine answers. | |
| Sep 7, 2011 at 5:15 | comment | added | Michael | Thanks to Georges' for your answer. Would the answer be positive if we assume $X$, $Y$ and $Z$ are manifolds, which is really what I meant to ask but forgot to mention? | |
| Sep 6, 2011 at 18:09 | history | edited | Georges Elencwajg | CC BY-SA 3.0 |
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| Sep 6, 2011 at 16:57 | comment | added | algori | Georges -- that's a good example. However, I believe for reasonably nice spaces the statement should be true. I'm not sure what exactly the "reasonably nice" condition is, but I guess it would suffice to require that the 1-point compactifications of all spaces should be finite CW-complexes. | |
| Sep 6, 2011 at 8:22 | history | edited | Georges Elencwajg | CC BY-SA 3.0 |
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| Sep 6, 2011 at 7:30 | history | edited | Georges Elencwajg | CC BY-SA 3.0 |
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| Sep 6, 2011 at 0:16 | history | answered | Georges Elencwajg | CC BY-SA 3.0 |