论文标题
轴向Bianchi ix及其Lema {_} Tre-Hubble图
Axial Bianchi IX and its Lema{î}tre-Hubble diagram
论文作者
论文摘要
我们计算了带有灰尘的轴向bianchi ix宇宙的Lema {_} Tre-Hubble图。我们通过定义{\ it最小的对称性破坏宇宙原理来激励我们的选择。该标准仅承认两种可能性：轴向Bianchi I和IX宇宙。后者具有正曲率，并在零曲率极限下降低到前者。值得注意的是，在存在灰尘的情况下，这种最小的对称性破裂所排除了负曲率。
We compute the Lema{î}tre-Hubble diagram for axial Bianchi IX universes with comoving dust. We motivate our choice by defining a {\it minimal} symmetry breaking of the cosmological principle. This criterium admits only two possibilities: the axial Bianchi I and IX universes. The latter have positive curvatures and reduce to the former in the zero curvature limit. Remarkably, negative curvatures are excluded by this minimal symmetry breaking in presence of comoving dust.
