Slides from Recent Talks (in PDF)

34th Southeastern Conference on Combinatorics, Graph Theory, and Computing: 6 March 2003

• Extending Precolorings of Graphs (pdf, 65 pages)
• On Visibility Graphs (pdf, 71 pages)

University of Colorado at Denver (CS and Discrete Math Colloquium): 12 March 2003

• On Visibility Graphs (pdf, 67 pages) (modified somewhat from the March 6th talk above)