Combinatorics  (English, Paperback, Sharif Shabir)

Combinatorics is a branch of mathematics that deals with counting, arranging, and analyzing the possible outcomes of certain situations. To research this topic effectively, it's important to understand the fundamentals of combinatorics and its related concepts. This includes studying the basics of set theory, probability theory, graph theory and algebraic structures. Once these foundations are established, it's important to get familiar with specific topics in combinatorics such as permutations and combinations, generating functions, recurrence relations and pigeonhole principle. After gaining a good understanding of these topics you can then look into more advanced materials such as Ramsey Theory or Graph.