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Nowhere-zero flow
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1	3-coloring triangle-free planar graphs with a precolored 8-cycle Zdenˇek Dvoˇra´k ∗ Add to Reading List Source URL: orion.math.iastate.edu Language: English - Date: 2014-08-22 14:45:15 Graph theory Graph coloring Planar graph Triangle-free graph Nowhere-zero flow Interval edge coloring Incidence coloring
2	coloring triangle-free planar graphs with a precolored 9-cycle Add to Reading List Source URL: orion.math.iastate.edu Language: English - Date: 2015-01-29 17:07:54 Graph coloring Planar graph Nowhere-zero flow Four color theorem Chordal graph Triangle-free graph Interval edge coloring Outerplanar graph
3	Survey of Problems, Questions, and Conjectures We here collect unsolved problems, questions, and conjectures mentioned in this book. For terminology and background, we refer to the pages indicated. 1 (page 41). Is NP6=P Add to Reading List Source URL: www.ime.usp.br Language: English - Date: 2013-04-30 09:54:41 Graph coloring Minor Petersen graph Conjectures Matroid Hypergraph Nowhere-zero flow Graph Degeneracy Graph theory Mathematics Matroid theory
4	Progress on the Four-Color Theorem PAUL SEYMOUR Add to Reading List Source URL: www.mathunion.org Language: English - Date: 2012-04-18 10:52:07 Topological graph theory Petersen graph Apex graph Linkless embedding Minor Nowhere-zero flow Cubic graph Line graph Petersen family Graph theory Graph coloring Planar graphs
5	Survey of Problems, Questions, and Conjectures We here collect unsolved problems, questions, and conjectures mentioned in Add to Reading List Source URL: homepages.cwi.nl Language: English - Date: 2004-08-26 05:52:03 Graph coloring Minor Petersen graph Conjectures Matroid Nowhere-zero flow Hypergraph Cubic graph Graph Graph theory Mathematics Matroid theory