Abstract
The P-separation of variables in Laplace's equation Δ2u = 0 in flat n-dimensional space Sn is proved to be equivalent to the complete separation of variables in the invariant Laplace equation
, in a space Vn of constant curvature K ≠ 0 (Δ is the invariant Laplacian, and R is the scalar curvature, all in Vn).
Similar content being viewed by others
Literature cited
G. Darboux, Lecons sur les Systèmes Orthogonaux et les Coordonnées Curvilignes, Paris (1910).
P. Lagrange, “Les familles de surfaces de révolution qui possedent des harmoniques,” Acta Math.,71, Nos. 3–4, 283–315 (1939).
R. Lagrange, “Les familles de cones de meme sommet qui possedent des harmoniques,” Acta Math.,79, Nos. 1–2, 1–15 (1947).
P. Moon and D. E. Spencer, Field Theory Handbook, Springer-Verlag (1961).
M. I. Olevskii, “Triorthogonal systems is spaces of constant curvature,” Matem. Sb.,27, No. 3, 379–426 (1950).
L. P. Eisenhart, Riemannian Geometry, Princeton Univ. Press, Princeton (1925).
I. I. Tugov, “A class of equivalent equations,” Matem. Zametki,2, No. 6, 657–663 (1967).
I. I. Tugov, “The P-separation of variables in Schrödinger's equation,” Sibirsk. Matem. Zh.,9, No. 3, 685–694 (1968).
Author information
Authors and Affiliations
Additional information
Translated from Matematicheskie Zametki, Vol. 8, No. 1, pp. 121–127, July, 1970.
Rights and permissions
About this article
Cite this article
Tugov, I.I. P-separation of variables in Laplace's equation. Mathematical Notes of the Academy of Sciences of the USSR 8, 538–541 (1970). https://doi.org/10.1007/BF01093449
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01093449