2nd Edition

A Tour through Graph Theory

By Karin R. Saoub Copyright 2026
394 Pages 648 Color & 2 B/W Illustrations
by Chapman & Hall

394 Pages 648 Color & 2 B/W Illustrations
by Chapman & Hall

394 Pages 648 Color & 2 B/W Illustrations
by Chapman & Hall

Graph theory is an area of mathematics that can challenge one's notions of what mathematics is and can be. The author discovered this as a student, as her discovery led her to pursue an advanced degree in mathematics. In A Tour through Graph Theory, Second Edition , the author shares her enthusiasm for the topic with students assuming only high school mathematics experience. The... Read more

Part 1: Graph Models and Routes

1. Eulerian Tours

1.1 Königsberg Bridge Problem

1.2 Introduction to Graph Models

1.3 Touring a Graph

1.4 Eulerian Circuit Algorithms

1.5 Eulerization

1.6 Exercises

2. Hamiltonian Cycles

2.1 Existence of a Hamiltonian Cycle

2.2 Traveling Salesman Problem

2.3 Digraphs

2.4 Exercises

3. Paths

3.1 Shortest Paths

3.2 Project Scheduling

3.3 Exercises

4. Additional Topics in Graph Routes

4.1 Tournaments

4.2 Flow and Capacity

4.3 Matrix Representation

4.4 Algorithm Efficiency

4.5 Exercises

Part 2: Graph Structure

5. Trees and Networks

5.1 Trees

5.2 Spanning Trees

5.3 Shortest Networks

5.4 Traveling Salesman Problem Revisited

5.5 Exercises

6. Matching

6.1 Bipartite Graphs

6.2 Matching Terminology and Strategies

6.3 Stable Matching

6.4 Matchings in Non-Bipartite Graphs

6.5 Exercises

7. Graph Coloring

7.1 Four Color Theorem

7.2 Coloring Bounds

7.3 Coloring Strategies

7.4 Perfect Graphs

7.5 Weighted Coloring

7.6 Exercises

8. Additional Topics in Graph Structure

8.1 Graph Isomorphism

8.2 Rooted Trees

8.3 Planarity

8.4 Edge-Coloring

8.5 Exercises

Appendix

A Set Theory

B Functions

C Matrix Operations

Selected Answers and Solutions

Biography

Karin R. Saoub is the M. Paul Capp and Constance Whitehead Professor of Mathematics and Dean of the School of Health, Science, and Sustainability at Roanoke College, Salem, VA. She earned her PhD in mathematics from Arizona State University and a BA from Wellesley College. Her research focuses on graph coloring and online algorithms applied to tolerance graphs. She is also the author of Graph Theory: An Introduction to Proofs, Algorithms, and Applications, published by CRC Press.