Complex variables for separation of the Hamilton-Jacobi equation on real pseudo-Riemannian manifolds
Author(s) -
Luca Degiovanni,
Giovanni Rastelli
Publication year - 2007
Publication title -
journal of mathematical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.708
H-Index - 119
eISSN - 1089-7658
pISSN - 0022-2488
DOI - 10.1063/1.2747611
Subject(s) - hamilton–jacobi equation , separation of variables , mathematics , eigenvalues and eigenvectors , manifold (fluid mechanics) , riemannian manifold , riemannian geometry , formalism (music) , mathematical analysis , pure mathematics , partial differential equation , physics , mechanical engineering , art , musical , quantum mechanics , engineering , visual arts
In this paper the geometric theory of separation of variables fortime-independent Hamilton-Jacobi equation is extended to include the case ofcomplex eigenvalues of a Killing tensor on pseudo-Riemannian manifolds. Thistask is performed without to complexify the manifold but just consideringcomplex-valued functions on it. The simple formalism introduced allows toextend in a very natural way the classical results on separation of variables(including Levi-Civita criterion and Stackel-Eisenhart theory) to the complexcase. Orthogonal variables only are considered.Comment: 26 pages, 5 low resolution picture
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