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Some implications and consequences of the expansion of the universe are examined. In Chapter 1 it is shown that this expansion creates grave difficulties for the Hoyle-Narlikar theory of gravitation. Chapter 2 deals with perturbations of an expanding homogeneous and isotropic universe. The conclusion is reached that galaxies cannot be formed as a result of the growth of perturbations that were initially small. The propagation and absorption of gravitational radiation is also investigated in this approximation. In Chapter 3 gravitational radiation in an expanding universe is examined by a method of asymptotic expansions. The 'peeling off' behaviour and the asymptotic group are derived. Chapter 4 deals with the occurrence of singularities in cosmological models. It is shown that a singularity is inevitable provided that certain very general conditions are satisfied.

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介绍了快速自适应信息处理的用途及含义，最小均方误差准则类的各种处理方法，最小平方误差准则类处理方法等。包括LMS、RLS、LSL、FTF算法。 作者: 陈尚勤 / 李晓峰 出版社: 人民邮电出版社 副标题: 全国高技术重点图书·通信技术领域 出版年: 1993