@Article{JMS-58-145, author = {Si , Cuifang and Xu , Shicheng}, title = {Rigidity for Einstein Manifolds under Bounded Covering Geometry}, journal = {Journal of Mathematical Study}, year = {2025}, volume = {58}, number = {2}, pages = {145--163}, abstract = {
In this note, we prove three rigidity results for Einstein manifolds with bounded covering geometry. (1) An almost flat manifold $(M,g)$ must be flat if it is Einstein, i.e. ${\rm Ric}_g =λg$ for some real number $λ.$ (2) A compact Einstein manifold with a non-vanishing and almost maximal volume entropy is hyperbolic. (3) A compact Einstein manifold admitting a uniform local rewinding almost maximal volume is isometric to a space form.
}, issn = {2617-8702}, doi = {https://doi.org/10.4208/jms.v58n2.25.02}, url = {http://global-sci.org/intro/article_detail/jms/24207.html} }