Defective Coloring Calculator

relaxed proper coloring

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About Defective Coloring Calculator

A defective coloring calculator computing χ_d(G): minimum colors where each vertex has at most d neighbors of the same color. d=0: proper coloring. d=1: each vertex shares color with ≤1 neighbor. Lovász (1966): planar graphs are 2-defective 3-colorable. Client-side.

Defective Coloring Calculator Features

  • χ_d value
  • Defect d
  • vs χ
  • Planar results
  • Common graphs

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