Graph Theory

Making Sense of Coronavirus with Graph Theory.
Graph Theory 1: Handshaking Lemma.
Stand 6 ft apart! Social Distancing and Graph Theory.
Graph Theory 2: Eulerian Paths & Circuits.
Graph Theory 3: Hamiltonian Paths & Ore's Theorem.
Graph Theory 4: Non-Planar Graphs & Kuratowski's Theorem.
Graph Theory 5: Polyhedra, Planar Graphs, & F-E+V=2.
Graph Theory 6: Simple, Planar Graphs.
Graph Theory 7: Five Color Theorem.
Graph Theory 8: Four Color Theorem (Kempe's Proof).
Graph Theory 9: Philosophical Signifance of Four Color Theorem.
Graph Theory 10: Coloring Theorem for Sphere, Torus, and More.
Graph Theory 11: Trees.
Graph Theory 12: Cayley's Tree Theorem.
Graph Theory 13: Spanning Trees and Kirchhoff's Theorem.