ON INTEGRAL EXPRESSIONS FOR VOLUMES OF HYPERBOLIC TETRAHEDRA

摘要

In this paper, we derive the Derevnin-Mednykh integral expression for the volume of a hyperbolic tetrahedron in terms of dihedral angles from the Murakami-Yano expression. As a consequence, we derive an expression for the volume of a hyperbolic tetrahedron in terms of edge lengths.