Abstract
A planar digraph D is clustered planar if in some planar embedding of D we have at each vertex the in-arcs occurring sequentially in the local rotation. By supplementing the operations used to form the usual minors in Kuratowski's theorem, clustered planar digraphs are characterised.
| Original language | English |
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| Article number | 159 |
| Number of pages | 6 |
| Journal | Electronic Journal of Combinatorics |
| Volume | 18 |
| Issue number | 1 |
| Publication status | Published - 2011 |