In the present era dominated by computers, graph theory has come into its own as an area of mathematics, prominent for both its theory and its applications. One

The study of directed graphs (digraphs) has developed enormously over recent decades, yet the results are rather scattered across the journal literature. This i

This edited volume offers a detailed account of the theory of directed graphs from the perspective of important classes of digraphs, with each chapter written b

Chartrand and Zhangs Discrete Mathematics presents a clearly written, student-friendly introduction to discrete mathematics. The authors draw from their backgro

This book clearly describes the many applications of graph theory to ecological questions, providing instruction and encouragement to researchers.