有些空间比其他空间更平等
Some spaces are more equal than others
摘要：
一般认为，在扰动的弗里德曼-勒梅特-罗伯逊-沃克宇宙模型中，全局拓扑不应该对动力学有任何反馈效应。然而，一个弱场极限的引力波参数，假设一个有限的粒子视界的引力信号的传输，表明一个剩余的加速效应可以发生。这种效应的性质在不同的常曲率3-流形之间代数上不同。这可能提供了一个选择机制的3-流形的共动空间。
英文摘要：
It has generally been thought that in perturbed Friedmann-Lemaitre-Robertson-Walker models of the Universe, global topology should not have any feedback effects on dynamics. However, a weak-field limit heuristical argument, assuming a finite particle horizon for the transmission of gravitational signals, shows that a residual acceleration effect can occur. The nature of this effect differs algebraically between different constant curvature 3-manifolds. This potentially provides a selection mechanism for the 3-manifold of comoving space.
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。
