Abstract:
The theory of Stäckel spaces is generalized to the case when the coordinate system in which there is complete separation of variables in the free Hamilton–Jacobi equation contains complex variables. Theorems which establish necessary and sufficient criteria of such spaces are proved.
Citation:
V. G. Bagrov, V. V. Obukhov, “Complete separation of variables in the free Hamilton–Jacobi equation”, TMF, 97:2 (1993), 250–269; Theoret. and Math. Phys., 97:2 (1993), 1275–1289