Díaz Sánchez, Raquel2023-06-202023-06-2019990179-537610.1007/PL00009440https://hdl.handle.net/20.500.14352/57388We give a characterization of the Gram matrices of spherical and finite-volume hyperbolic polytopes of a given combinatorial type. This is done in terms of the signs of certain minors of the Gram matrix.engjournal articlehttp://www.springerlink.com/content/fapge0cdq2cpq7lp/fulltext.pdfhttp://www.springerlink.com/open access514n -dimensional polytopesGeometría1204 Geometría