NOTHER SYMMETRIES IN NONFLAT COSMOLOGIES

被引：16

作者：

CAPOZZIELLO, S ^{[1
]}

DERITIS, R ^{[1
]}

SCUDELLARO, P ^{[1
]}

机构：

[1] INFN,I-80125 NAPLES,ITALY

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS | 1994年 / 109卷 / 02期

关键词：

D O I：

10.1007/BF02727426

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study non-flat Friedman-Robertson-Walker (FRW) cosmologies searching for Nother symmetries in the pointlike Lagrangians derived from a general non-minimally coupled gravitational action. The presence of a quadratic coupling makes the dynamics degenerate if the spatial-curvature constant k is different from zero, while exact solutions, through the existence of the symmetry, are found in the minimally coupled case.

引用

页码：159 / 165

页数：7

共 24 条

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