Sphere Packings, Lattices and Groups 9781441931344 现货图书
Product Details 基本信息 ISBN-13 书号 9781441931344 Author 作者 Conway Format 版本 平装-胶订 Pages Number 页数 706页 Publication Date 出版日期 2010-12-01 Language 语种 英语 Book Contents 内容简介 We now apply the algorithm above to find the 121 orbits of norm -2 vectors from the (known) nann 0 vectors, and then apply it again to find the 665 orbits of nann -4 vectors from the vectors of nann 0 and -2. The neighbors of a strictly 24 dimensional odd unimodular lattice can be found as follows. If a norm -4 vector v E II . corresponds to the sum 25 1 of a strictly 24 dimensional odd unimodular lattice A and a !-dimensional lattice, then there are exactly two nonn-0 vectors of ll25,1 having inner product -2 with v, and these nann 0 vectors correspond to the two even neighbors of A. The enumeration of the odd 24-dimensional lattices. Figure 17.1 shows the neighborhood graph for the Niemeier lattices, which has a node
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【预订】Sphere Packings 9781475781489 国外库房发货,通常付款后3-5周到货!
Product Details 基本信息 ISBN-13 书号 9781475781489 Author 作者 Talbot Format 版本 平装-胶订 Pages Number 页数 242页 Publisher 出版社 Springer New York Publication Date 出版日期 2013-04-08 Product Dimensions 商品尺寸 9.2 x 6.1 x 0.5 cm Shipping Weight 商品重量 810g Language 语种 英语 Book Contents 内容简介 Sphere Packings is one of the most attractive and challenging subjects in mathematics. Almost 4 centuries ago, Kepler studied the densities of sphere packings and made his famous conjecture. In the course of centuries, many exciting results have been obtained, ingenious methods created, related challenging problems proposed, and many surprising connections with othe subjects found. Thus, though some of its original problems are still open, sphere packings has been developed into an important discipline. This book tries to give a full account of this fascinating subject, especially
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海外直订Sphere Packings, Lattices and Groups 球形填料、网格和组
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海外直订Sphere Packings, Lattices and Groups 球形填料、网格和组
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