标题： 宇宙学常数对于透镜效应的相关性 显示英文标题

标题： The Relevance of the Cosmological Constant for Lensing

摘要： 这篇综述探讨了宇宙常数对Kottler（Schwarzchild-de Sitter）时空球对称质量引起的光偏折影响的一些最新进展。文中还讨论了一些如何将这种影响纳入宇宙学引力透镜设置的建议。从这篇综述可以看出，可以公平地说，$\Lambda$对光偏折的贡献现在已经得到了很好的确立，而将$\Lambda$的光偏折项置于宇宙学背景中仍需一些解释，并且需要进一步的研究和澄清。 显示英文摘要

摘要： This review surveys some recent developments concerning the effect of the cosmological constant on the bending of light by a spherical mass in Kottler (Schwarzchild-de Sitter) spacetime. Some proposals of how such an effect may be put into a setting of gravitational lensing in cosmology are also discussed. The picture that emerges from this review is that it seems fair to assert that the contribution of $\Lambda$ to the bending of light has by now been well established, while putting the $\Lambda$ light-bending terms into a cosmological context is still subject to some interpretation and requires further work and clarification.