ON THE STABILITY OF PARABOLIC DIFFERENTIAL AND DIFFERENCE EQUATIONS WITH A TIME-NONLOCAL CONDITION
Article
Computational Mathematics and Mathematical Physics.
Vol. 62.
2022.
P. 962-973
In this paper, we use the contemporary proof (by Abrosimov and Mednykh) of the Sforza formula for volume of an arbitrary non-Euclidean tetrahedron to derive new formulas that express volumes of hyperbolic tetrahedra of special kind (orthoschemes and tetrahedra with the symmetry group S4) via dihedral angles.