Timeline for Definition of union of simplicial complex and a subset
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
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| Apr 12, 2022 at 18:20 | comment | added | modnar | This came up in the statement I read that $I(G - e) = I(G) \cup \{ e \}$, where $I(G)$ is the independence complex (independent vertices) of a graph $G$ and $G - e$ means deleting the edge $e$ of $G$ keeping the vertices in $G$. It seemed a bit strange I'm not sure if the statement above is consistent with the definition of an independent set of vertices (e.g. not splitting into cases depending on the reason why some set of vertices is independent in $G - e$ and not in $G$) . Aside from this statement, I was wondering if there was a more general notation for the union in the question. | |
| Apr 12, 2022 at 15:06 | comment | added | Reid Barton | It would be a lot easier to guess the meaning given context. | |
| Apr 12, 2022 at 11:20 | history | asked | modnar | CC BY-SA 4.0 |