Paul O’Donnell

Authors

Geombinatorics Quarterly

Paul O’Donnell

  • Article Title: A Large Independent Set in the Unit Distance Graph
  • Article Title: A Triangle-free 4-chromatic Graph in the Plane
    • Vol Issue: Vol IV (1), 1994 
    • Pages: 23- 29
       
  • Article Title: Letter to the Editor
    • Vol Issue: Vol IV (1), 1994
    •  Pages: 30
       
  • Article Title: A 40 Vertex 4-Chromatic Triangle-Free Unit Distance Graph
    • Vol Issue: Vol V (1), 1995 
    • Pages: 30-34
       
  • Article Title: Some 4-Chromatic Unit-Distance Graphs Without Small Cycles
    • Vol Issue: Vol V (4), 1996 
    • Pages: 137-141
       
  • Article Title: Arbitrary Girth, 4-Chromatic Unit Distance Graphs in the Plane Part 1: Graph Description
    • Vol Issue: Vol IX (3), 2000 
    • Pages: 145-149
       
  • Article Title: Arbitrary Girth, 4-Chromatic Unit Distance Graphs in the Plane Part 2: Graph Embedding 
    • Vol Issue: Vol IX (4), 2000 
    • Pages: 180- 193