Edge-clique graphs of cocktail parties have unbounded rankwidth
نویسندگان
چکیده
In an attempt to find a polynomial-time algorithm for the edgeclique cover problem on cographs we tried to prove that the edge-clique graphs of cographs have bounded rankwidth. However, this is not the case. In this note we show that the edge-clique graphs of cocktail party graphs have unbounded rankwidth.
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عنوان ژورنال:
- CoRR
دوره abs/1205.2483 شماره
صفحات -
تاریخ انتشار 2012