TY - JOUR ID - Sonntag2010 LB - Sonntag2010 AU - Sonntag, Martin AU - Teichert, Hanns-Martin TI - Domination hypergraphs of certain digraphs ST - Domination hypergraphs of certain digraphs JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2010 VL - 30 IS - 2 SP - 179 EP - 191 DO - http://dx.doi.org/10.7494/OpMath.2010.30.2.179 UR - http://dx.doi.org/10.7494/OpMath.2010.30.2.179 AB - If \(D = (V,A)\) is a digraph, its domination hypergraph \(\mathcal{DH}(D) = (V,\mathcal{E})\) has the vertex set \(V\) and \(e \subseteq V\) is an edge of \(\mathcal{DH}(D)\) if and only if \(e\) is a minimal dominating set of \(D\). We investigate domination hypergraphs of special classes of digraphs, namely tournaments, paths and cycles. Finally, using a special decomposition/composition method we construct edge sets of domination hypergraphs of certain digraphs. KW - hypergraph KW - dominating set KW - directed graph SN - 1232-9274 ER -