RT Journal Article T1 A characterization of Gram matrices of polytopes A1 Díaz Sánchez, Raquel AB We 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. PB Springer SN 0179-5376 YR 1999 FD 1999 LK https://hdl.handle.net/20.500.14352/57388 UL https://hdl.handle.net/20.500.14352/57388 LA eng DS Docta Complutense RD 13 may 2025