Plane Graphs without 4- and 5-Cycles and without Ext-Triangular 7-Cycles are 3-Colorable

Ligang Jin, Ying-li Kang, Michael Schubert, Yingqian Wang. Plane Graphs without 4- and 5-Cycles and without Ext-Triangular 7-Cycles are 3-Colorable. SIAM J. Discrete Math., 31(3):1836-1847, 2017. [doi]

@article{JinKSW17,
  title = {Plane Graphs without 4- and 5-Cycles and without Ext-Triangular 7-Cycles are 3-Colorable},
  author = {Ligang Jin and Ying-li Kang and Michael Schubert and Yingqian Wang},
  year = {2017},
  doi = {10.1137/16M1086418},
  url = {https://doi.org/10.1137/16M1086418},
  researchr = {https://researchr.org/publication/JinKSW17},
  cites = {0},
  citedby = {0},
  journal = {SIAM J. Discrete Math.},
  volume = {31},
  number = {3},
  pages = {1836-1847},
}