Theory of Association Schemes (English, Paul-Hermann Zieschang)

About the Book

The present text is an introduction to the theory of association schemes. We start with the de?nition of an association scheme (or a scheme as we shall say brie?y), and in order to do so we ?x a set and call it X. We write 1 to denote the set of all pairs (x, x) with x? X. For each subset X ? r of the cartesian product X�X, we de?ne r to be the set of all pairs (y, z) with (z, y)? r.For x an element of X and r a subset of X� X, we shall denote by…

ISBN: 9783540261360