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oai:riuma.uma.es:10630/193742026-02-03T11:49:46Zcom_10630_2254col_10630_37959

00925njm 22002777a 4500 dc Costa e Silva, Ivan P. author 2020-03-09 It is well know that globally hyperbolic solutions (M,g) of the Einstein field equations in general relativity may have initial data Cauchy hypersurfaces with any topology. However, some restrictions on the fundamental group of M can arise from the causal structure if either all inextendible causal geodesics in (M,g) are complete or if one assumes that M has a boundary with suitable properties. I shall review a number of such "topological censorship" results and discuss some open issues. https://hdl.handle.net/10630/19374 Ecuaciones Topological restrictions in Lorentzian geometry: a survey