Numbers permeate every aspect of our lives; very little happens without a basic ability to manipulate the simple whole numbers we all take for granted. Beautifully illustrated with old engravings as well as contemporary imagery, Sacred Number introduces basic counting systems; significant numbers from major religious texts; the importance of astronomy, geometry, and music to nu...(展开全部)

From the reviews: "...a fine book [...] When it appeared in 1949 it was a pioneer. Now there are plenty of competing accounts. But Hasse has something extra to offer.[...] Hasse proved that miracles do happen in his five beautiful papers on quadratic forms of 1923-1924. [...]It is trite but true: Every number-theorist should have this book on his or her shelf." --Irving Kaplans...(展开全部)

The central theme of this book is the solution of Diophantine equations, i.e., equations or systems of polynomial equations which must be solved in integers, rational numbers or more generally in algebraic numbers. This theme, in particular, is the central motivation for the modern theory of arithmetic algebraic geometry. In this text, this is considered through three of its mo...(展开全部)

The central theme of this book is the solution of Diophantine equations, i.e., equations or systems of polynomial equations which must be solved in integers, rational numbers or more generally in algebraic numbers. This theme, in particular, is the central motivation for the modern theory of arithmetic algebraic geometry. In this text, this is considered through three of its mo...(展开全部)

This book deals with several aspects of what is now called "explicit number theory." The central theme is the solution of Diophantine equations, i.e., equations or systems of polynomial equations which must be solved in integers, rational numbers or more generally in algebraic numbers. This theme, in particular, is the central motivation for the modern theory of arithmetic alge...(展开全部)

This book deals with several aspects of what is now called "explicit number theory." The central theme is the solution of Diophantine equations, i.e., equations or systems of polynomial equations which must be solved in integers, rational numbers or more generally in algebraic numbers. This theme, in particular, is the central motivation for the modern theory of arithmetic alge...(展开全部)

中国科幻第一人，九届银河奖得主，《三体》作者刘慈欣作品。 在2018年，人类社会拥有了可以改变基因延长寿命的技术，通过延基，人类寿命可达300年。同时，网络虚拟社会已经极其庞大，实体货币逐渐废除，虚拟货币正在兴起。不但如此，虚拟的网络国家还在提出申请加入联合国。在这种风云变幻的大背景下，人心 动荡，前途未卜，男主角盗用公款准备延基，而正当他打算向女朋友坦白自己只筹集到一个人延基费用的时候，却发现女朋友早已打算利用另一项技术——冷冻，休眠到100年以后…

公元2018年，网络信息技术飞速发展，在现实国家中衍生出虚拟国家，现实国家中的人类在虚拟国家拥有着另一种截然不同的身份。虚拟国家人口数量已达到20亿，虚拟的国际社会不但架构起完备的国际社群，更向联合国申请获得与现实国家同等的地位。与此同现时现实社会中，不计其数的人类将面临着知识结构过时的悲惨境况。无论是加入虚拟国家还是继续存留于现实国家，主人公都必然无所适从，于是他窃取公款对自己进行了基因改造，此后，他将拥有长达三百年的漫长人生去应对一切。