Montesinos Amilibia, José María2023-06-202023-06-201987-110002-993910.2307/2046408https://hdl.handle.net/20.500.14352/57719We give a different proof of the result of M. Sakuma [Math. Sem. Notes Kobe Univ. 9 (1981), no. 1, 159–180] that every closed, oriented 3-manifold M has a 2-fold branched covering space N which is a surface bundle over S1. We also give a new proof of the result of Brooks that N can be made hyperbolic. We give examples of irreducible 3-manifolds which can be represented as 2m-fold cyclic branched coverings of S3 for a number of different m's as big as we like.engjournal articlehttp://www.ams.org/journals/proc/1987-101-03/S0002-9939-1987-0908668-1/S0002-9939-1987-0908668-1.pdfhttp://www.ams.org/restricted access515.162open-bookhyperbolic manifoldsurface bundle over S 1closed orientable 3-manifold2m-fold branched cyclic coveringTopología1210 Topología