List Chromatic Number Calculator

list chromatic ch(G)

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About List Chromatic Number Calculator

A choosability calculator computing ch(G): minimum k such that for ANY assignment of k-element lists to vertices, a proper coloring from the lists exists. ch(G) ≥ χ(G). Thomassen: ch(planar) ≤ 5. Galvin: ch(K_{n,n}) = χ'(K_{n,n}). Client-side.

List Chromatic Number Calculator Features

  • ch(G) value
  • ch vs χ gap
  • Thomassen planar
  • Galvin bipartite
  • Common graphs

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