《非平凡几何:宇宙曲率的界限》(Nontrivial Geometries:Bounds on the Curvature of the Universe)
Comment on ``Nontrivial Geometries: Bounds on the Curvature of the Universe''
摘要:
论文0705.0332v1旨在研究均匀和各向同性模型中非平凡空间曲率的影响。我们注意到,所考虑的空间是不均匀的,所使用的运动方程与度规不一致。此外,我们还解释了为什么均匀和各向同性时空的空间曲率总是像1/a^2那样演化,这与0705.0332v1的中心假设相反。
英文摘要:
The paper 0705.0332v1 seeks to study the effect of non-trivial spatial curvature in homogeneous and isotropic models. We note that the space considered is not homogeneous, and that the equations of motion used are inconsistent with the metric. Also, we explain why the spatial curvature of homogeneous and isotropic spacetimes always evolves like 1/a^2, contrary to the central assumption of 0705.0332v1.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。