John W.Milnor，著名美国数学家，菲尔兹奖（1962）和沃尔夫奖（1989）得主。美国科学院院士，1966年获得美国国家科学奖章。现任纽约州立大学石溪分校教授。在微分拓扑、K理论、动力系统等方面都有杰出的成就。他的写作风格深受读者欢迎，除本书外，还著有 Mores Theory、Characteristic Classes 等，都是公认的数学名著。

This elegant book by distinguished mathematician John Milnor, provides a clear and succinct introduction to one of the most important subjects in modern mathematics. Beginning with basic concepts such as diffeomorphisms and smooth manifolds, he goes on to examine tangent spaces, oriented manifolds, and vector fields. Key concepts such as homotopy, the index number of a map, and...(展开全部)

本书为公版书，为不受著作权法限制的作家、艺术家及其它人士发布的作品，供广大读者阅读交流。汇聚授权电子版权。

Robert Bresson makes some quite radical distinctions between what he terms "cinematography" and something quite different: "cinema"-which is for him nothing but an attempt to photograph theater and use it for the screen. Director of "The Trial of Joan of Arc, Pickpocket, A Prisoner Escapes, Diary of a Country Priest, Money," and many other classic films, Robert Bresson is, quit...(展开全部)

In this witty, candid, and revealing account of himself, which is in the tradition of Cellini's Autobiography, Hockney tells of his early years in art school; his studies at the Royal College of Art in London, during which he first came to public attention; his sojourn in California, which inspired his best-known paintings, drawings and prints; and his present phase in Paris, w...(展开全部)

何塞•奥尔特加•伊•加塞特(1883-1955)，20世纪西班牙哲学家、思想家、文艺批评家、随笔作家。其作品涵盖存在主义、历史哲学、艺术理论、文学理论、对西班牙民族性的批判等方面。奥尔特加的著述在西语世界乃至20世纪西方思想史中占有重要地位。代表作有《大众的反叛》《堂吉诃德沉思录》《艺术的去人性化》等。 王军，北京大学西葡语系教授，主要从事西语国家文学研究。著作有《诗与思的激情对话》《二十世纪西班牙小说》《西班牙当代女性成长小说》。 蔡潇洁，文学博士，首都师范大学西班牙语系副教授，主要从事现当代西班牙文学与文化研究。

The amount of algebraic topology a graduate student specializing in topology must learn can be intimidating. Moreover, by their second year of graduate studies, students must make the transition from understanding simple proofs line-by-line to understanding the overall structure of proofs of difficult theorems. To help students make this transition, the material in this book is...(展开全部)

The amount of algebraic topology a graduate student specializing in topology must learn can be intimidating. Moreover, by their second year of graduate studies, students must make the transition from understanding simple proofs line-by-line to understanding the overall structure of proofs of difficult theorems. To help students make this transition, the material in this book is...(展开全部)

"I am a sick man . . . I am a spiteful man," the irascible voice of a nameless narrator cries out. And so, from underground, emerge the passionate confessions of a suffering man; the brutal self-examination of a tormented soul; the bristling scorn and iconoclasm of alienated individual who has become one of the greatest antiheroes in all literature. Notes From Underground , ...(展开全部)