Subplane replacement in projective planes.
A graph is a minimal claw-free graph (m.c.f. graph) if it contains no (claw) as an induced subgraph and if, for each edge of , contains an induced claw. We investigate properties of m.c.f. graphs, establish sharp bounds on their orders and the degrees of their vertices, and characterize graphs which have m.c.f. line graphs.
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