Tag: coloring
- Tue 29 July 2025 - Euler's Formula Forces a Planar Edge Bound - updated: Fri 03 April 2026
- Sat 02 April 2016 - K5 and K3,3 Violate Planar Density in Different Ways - updated: Sun 15 September 2024
- Tue 28 February 2023 - Planar Duality Exchanges Cycles and Cuts - updated: Wed 28 August 2024
- Thu 25 July 2013 - Triangle-Free Planar Graphs Have an Even Stronger Bound
- Thu 14 April 2011 - The Five-Color Theorem Uses a Low-Degree Vertex