Kneyfits A. A Primer in Combinatorics 2ed 2021

Textbook in PDF format

The second edition of this well-received textbook is devoted to Combinatorics and Graph Theory, which are cornerstones of Discrete Mathematics. Every section begins with simple model problems. Following their detailed analysis, the reader is led through the derivation of definitions, concepts,
Preface to the second edition
Preface to the first edition
Introductory combinatorics and graph theory
Basic counting
Basic graph theory
Hierarchical clustering and dendrogram graphs
Combinatorial analysis
Enumerative combinatorics
Existence theorems in combinatorics
Secondary structures of the RNA
Answers/solutions to selected problems
Bibliography
Index