Delta-Confluent Drawings

We generalize the tree-confluent graphs to a broader class of graphs called Delta-confluent graphs. This class of graphs and distance-hereditary graphs, a well-known class of graphs, coincide. Some results about the visualization of Delta-confluent graphs are also given.Comment: 14 pages, 8 figures. A preliminary version of this work was presented at the 13th Int. Symp. Graph Drawing, Limerick, Ireland, September 200