HPH Combinatorics and Graph Theory by Mrs. Ritika Sachdev

The book "Combinatorics and Graph Theory" is the outcome of my conviction that there should be a text-cum-reference book for the newly introduced subject in order that it be understood better by student community at large. The book has its genesis and is the result of some of the young and fresh college teachers who wanted a reliable and comprehensive book which contain simplified yet rigorous treatment of the subject matter. A genuine effort has been made to catch the spirit of the subject. I have tried to acquaint the reader with fine points and details of the subject as best as I can.

The students are already familiar at plus-two level with elementary techniques of Permutation and Combination, Principles of Mathematical Induction, Binomial theorem, etc. In this book, the main idea is to explain students not only the said topics but also extend these further by logical development of the subject. As a result, students would be able to handle problems arising in the application to these topics in Computer Science.

Each concept has been illustrated by suitable solved examples followed by a graded list of problems for practice. The subject of 'Combinatorics and Graph Theory' is not a spectator's sport. Students should try to solve as many exercise problems as possible.