Smooth graphs satisfy a five-point metric condition, are closed under specific products and amalgams, and among Ptolemaic graphs are precisely the induced-K1,1,3-free ones.
50, Elsevier, Amsterdam, 1993
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Smooth Graphs
Smooth graphs satisfy a five-point metric condition, are closed under specific products and amalgams, and among Ptolemaic graphs are precisely the induced-K1,1,3-free ones.