One of the major discoveries of the last two decades of the twentieth century in algebraic geometry is the realization that the theory of minimal models of surfaces can be generalized to higher dimensional varieties. This generalization, called the minimal model program or Mori's program, has developed into a powerful tool with applications to diverse questions in algebraic geometry and beyond. This book provides the a comprehensive introduction to the circle of ideas developed around the program, the prerequisites being only a basic knowledge of algebraic geometry. It will be of great interest to graduate students and researchers working in algebraic geometry and related fields.

本书是根据美国科学院院士，著名数学家P·格列菲斯在北京大学讲课的讲稿整理写成的。本书篇幅虽不大，但内容丰富，阐述精炼，引人入胜。书中深入浅出地介绍了正则化定理，Riemann-Roch定理，Abel定理等代数曲线论的重要结果，以及这些定理的应用和重要的几何事实。读者只要具有大学复变函数论和抽象代数的基础知识即可阅读此书。 本书可作为大学数学系高年级学生和研究生教材，也可供数学工作者参考。

本书主要讨论紧黎曼曲面，中心是Riemann-Roch定理的证明及其应用，因为黎曼曲面是近代数学不少分支的最简单的模型．本书在讨论中采用一些必要的近代数学的概念与方法作为工具，以期使本书能成为近代数学很多方面的入门书．本书可供数学专业高年级学生、研究生、数学教师及其它数学工作者参今

《代数几何原理》主要内容：A third general principle was that this volume should be stir-contained.In particular any "hard" result that would be utilized should be fullyproved. A difficulty a student often faces in a subject as diverse as algebraic geometry is the profusion of cross-references, and this is one reason for attempting to be self-contained. Similarly, we have attempted to avoid allusions to, or statements without proofs of, related results. This book is in no way meant to be a survey of algebraic geometry, but rather is designed to develop a working facility with specific geometric questions.Our approach to the subject is initially analytic: Chapters 0 and 1 treat the basic techniques and results of complex manifold theory, with some emphasis on results applicable to projective varieties. Beginning in Chapter 2 with the theory of Riemann surfaces and algebraic curves, and continu-ing in Chapters 4 and 6 on algebraic surfaces and the quadric line complex, our treatment becomes increasingly geometric along classicallines. Chapters 3 and 5 continue the analytic approach, progressing to more special topics in complex manifolds.