Abstract.
Starting from the (apparently) elementary problem of deciding how many different topological spaces can be obtained by gluing together in pairs the faces of an octahedron, we will describe the central rôle played by hyperbolic geometry within three-dimensional topology. We will also point out the striking difference with the two dimensional case, and we will review some of the results of the combinatorial and computational approach to three-manifolds developed by different mathematicians over the last several years.
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Lecture held by Carlo Petronio in the Seminario Matematico e Fisico di Milano on April 23, 2007
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Petronio, C., Heard, D. & Pervova, E. Combinatorial and Geometric Methods in Topology. Milan j. math. 76, 69–92 (2008). https://doi.org/10.1007/s00032-007-0080-x
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DOI: https://doi.org/10.1007/s00032-007-0080-x