Packing paths in planar graphs


A generalization of P. Seymour's theorem on planar integral 2-commodity flows is given when the underlying graphG together with the demand graphH (a graph having edges that connect the corresponding terminal pairs) form a planar graph and the demand edges are on two faces ofG.

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Frank, A. Packing paths in planar graphs. Combinatorica 10, 325–331 (1990).

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AMS subject classification (1980)

  • 05 C 10
  • 05 C 38
  • 90 B 10