Timeline for Removing simplices from simplicial complexes without decreasing connectedness
Current License: CC BY-SA 3.0
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| Feb 16, 2017 at 18:14 | comment | added | Sebastian Goette | Indeed, I found the example by looking at the corresponding part of the homology exact sequence. But then dimension 2 was sufficient to realise it, so I had to discuss the fundamental group, too. But I am confused about the the last statement: in order to loose connectivity, we need the map to be not surjective on homology. Is that what you meant? In the example above, the map induces multiplication by 2 or 3 in $\mathbb Z$. | |
| Feb 16, 2017 at 14:28 | history | answered | Jeff Strom | CC BY-SA 3.0 |