This book is the first of a two-volume basic introduction to enumerative combinatorics at a level suitable for graduate students and research mathematicians. It concentrates on the theory and application of generating functions, a fundamental tool in enumerative combinatorics. The book covers those parts of enumerative combinatorics of greatest applicability to other areas of mathematics. The four chapters are devoted to an introduction to enumeration (suitable for advanced undergraduates), sieve methods (including the Principle of Inclusion-Exclusion), partially ordered sets, and rational generating functions. There are a large number of exercises, almost all with solutions, which greatly augment the text and provide entry into many areas not covered directly. Graduate students and research mathematicians who wish to apply combinatorics to their work will find this an authoritative reference.

《组合代数拓扑(影印版)》内容简介：Combinatorial algebraic topology is a fascinating and dynamic field at the crossroads of algebraic topology and discrete mathematics. This volume is the first comprehensive treatment of the subject in book form. The first part of the book constitutes a swft walk through the main tools of algebraic topology，including Stiefel-Whitney characteristic classes，which are needed for the later. parts. Readers-graduate students and working mathematicians alike-will probably find particularly useful the second part，which contains an in-depth discussion of the major research techniques of combinatorial algebraic topology. Our presentation of standard topics is quite different from that of existing texts. In addition， several new themes，such as spectral sequences，are included. Although applications are sprinkled throughout the second part，they are principal focus of the third part，which is entirely devoted to developing the topological structure theory for graph homomorphisms. The main benefit for the reader will be the prospect of fairly quickly getting to the forefront of modem research in this active field.

《组合数学》(原书第4版)侧重于组合数学的概念和思想，包括鸽巢原理、计数技术、排列组合、Polya计数法、二项式系数、容斥原理、生成函数和递推关系以及组合结构(匹配、实验设计、图)等，深入浅出地表达了作者对该领域全面和深刻的理解，介绍了历史上源于数学游戏和娱乐的大量实例，其中对Polya计数、Burnside定理等的完美处理使得不熟悉群论的学生也能够读懂。除包含第3版中的内容外，本版又进行了更新，增加了莫比乌斯反演(作为容斥原理的推广)、格路径、Schroder数等内容。此外，各章均包含大量练习题，并在书末给出了参考答案与提示。

《组合数学(英文版)(第5版)》英文影印版由Pearson Education Asia Ltd．授权机械工业出版社独家出版。未经出版者书面许可，不得以任何方式复制或抄袭奉巾内容。仅限于中华人民共和国境内(不包括中国香港、澳门特别行政区和中同台湾地区)销售发行。《组合数学(英文版)(第5版)》封面贴有Pearson Education(培生教育出版集团)激光防伪标签，无标签者不得销售。English reprint edition copyright@2009 by Pearson Education Asia Limited and China Machine Press．
Original English language title：Introductory Combinatorics，Fifth Edition(ISBN978—0—1 3-602040-0)by Richard A．Brualdi，Copyright@2010，2004，1999，1992，1977 by Pearson Education，lnc． All rights reserved．
Published by arrangement with the original publisher，Pearson Education，Inc．publishing as Prentice Hall．
For sale and distribution in the People’S Republic of China exclusively(except Taiwan，Hung Kong SAR and Macau SAR)．

图论在计算科学、社会科学和自然科学等各个领域都有广泛应用。本书是本科生或研究生一学期或两学期的图论课程教材。全书力求保持按证明的难度和算法的复杂性循序渐进的风格，使学生能够深入理解书中的内容。书中包括对证明技巧的讨论、1200多道习题、400多幅插图以及许多例题，而且对所有定理都给出了详细完整的证明。虽然本书包括许多算法和应用，但是重点在于理解图论结构和分析图论问题的技巧。