Abstract
We characterize the switching classes that do not contain an acyclic graph. The characterization is by means of a set of forbidden induced subgraphs. We prove that in addition to switches of the cycles Cn for $n\geq 7$, there are only finitely many such graphs in 24 switching classes, all having at most 9 vertices. We give a representative of each of the 24 switching classes.
| Original language | English |
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| Pages (from-to) | 159-176 |
| Number of pages | 18 |
| Journal | SIAM Journal on Discrete Mathematics |
| Volume | 18 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2005 |