An existence theorem for planar maps

DOI10.1016/0095-8956(73)90062-2zbMath0259.05103OpenAlexW2048741271MaRDI QIDQ2560254

Wolfgang Haken

Publication date: 1973

Published in: Journal of Combinatorial Theory. Series B (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0095-8956(73)90062-2

Mathematics Subject Classification ID

Planar graphs; geometric and topological aspects of graph theory (05C10) Relations of low-dimensional topology with graph theory (57M15)

Related Items (5)

Inégalités nouvelles dans le problème des quatre couleurs ⋮ Triangulation à \(V_5\) séparée dans le problème des quatre couleurs ⋮ A systematic approach to the determination of reducible configurations in the four-color conjecture ⋮ An unavoidable set of configurations in planar trigangulations ⋮ A lower bound for the independence number of a planar graph

Cites Work

• Chromatic reduction of the triangulations \(T_e, e=e_5+e_7\)
• Numerical calculations on the four-color problem
• Unnamed Item

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