| Chapter 1 Mathematical Models |
| 1.1 Nonmathematical Models |
| 1.2 Mathematical Models |
| 1.3 Graphs |
| 1.4 Graphs as Mathematical Models |
| 1.5 Directed Graphs as Mathematical Models |
| 1.6 Networks as Mathematical Models |
| Chapter 2 Elementary Concepts of Graph Theory |
| 2.1 The Degree of a Vertex |
| 2.2 Isomorphic Graphs |
| 2.3 Connected Graphs |
| 2.4 Cut-Vertices and Bridges |
| Chapter 3 Transportation Problems |
| 3.1 The Königsberg Bridge Problem: An Introduction to Eulerian Graphs |
| 3.2 The Salesman's Problem: An Introduction to Hamiltonian Graphs |
| Chapter 4 Connection Problems |
| 4.1 The Minimal Connector Problem: An Introduction to Trees |
| *4.2 Trees and Probability |
| 4.3 PERT and the Critical Path Method |
| Chapter 5 Party Problems |
| 5.1 The Problem of Eccentric Hosts: An Introduction to Ramsey Numbers |
| 5.2 The Dancing Problem: An Introduction to Matching |
| Chapter 6 Games and Puzzles |
| 6.1 "The Problem of the Four Multicolored Cubes: A Solution to "Instant Insanity" |
| 6.2 The Knight's Tour |
| 6.3 The Tower of Hanoi |
| 6.4 The Three Cannibals and Three Missionaries Problem |
| Chapter 7 Digraphs and Mathematical Models |
| 7.1 A Traffic System Problem: An Introduction to Orientable Graphs |
| 7.2 Tournaments |
| 7.3 Paired Comparisons and How to Fix Elections |
| Chapter 8 Graphs and Social Psychology |
| 8.1 The Problem of Balance |
| 8.2 The Problem of Clustering |
| 8.3 Graphs and Transactional Analysis |
| Chapter 9 Planar Graphs and Coloring Problems |
| 9.1 The Three Houses and Three Utilities Problem: An Introduction to Planar Graphs |
| 9.2 A Scheduling Problem: An Introduction to Chromatic Numbers |
| 9.3 The Four Color Problem |
| *Chapter 10 Graphs and Other Mathematics |
| 10.1 Graphs and Matrices |
| 10.2 Graphs and Topology |
| 10.3 Graphs and Groups |
| "Appendix Sets, Relations, Functions, Proofs" |
| A.1 Sets and Subsets |
| A.2 Cartesian Products and Relations |
| A.3 Equivalence Relations |
| A.4 Functions |
| A.5 Theorems and Proofs |
| A.6 Mathematical Induction |
| "Answers, Hints, and Solutions to Selected Exercises" |
| Index |