商品簡介
This graduate text explains enumeration problems, blending combinational and algebraic concepts starting with the elementary and advancing to the research level. The authors (combinatorics and optimization, U. of Waterloo) begin with the mathematical preliminaries, including the ring of formal power series and the Lagrange theorem for implicit functions. They continue with the combinatorics of ordinary and exponential generating functions, of sequences, and of paths. They include references and exercises for each section and an answer key. Annotation c2004 Book News, Inc., Portland, OR (booknews.com)
