On the essential constants in Riemannian geometries

Details On the essential constants in Riemannian geometries On the essential constants in Riemannian geometries

2005-03-23

arxiv.org/abs/gr-qc/0503096v3

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, LaTeX2e typesetting system, no tables or figures, J. Math. Phys. 47, 092502 (2006) [still open issue]

Scientific paper

10.1063/1.2338760

In the present work the problem of distinguishing between essential and spurious (i.e., absorbable) constants contained in a metric tensor field in a Riemannian geometry is considered. The contribution of the study is the presentation of a sufficient and necessary criterion, in terms of a covariant statement, which enables one to determine whether a constant is essential or not. It turns out that the problem of characterization is reduced to that of solving a system of partial differential equations of the first order. In any case, the metric tensor field is assumed to be smooth with respect to the constant to be tested. It should be stressed that the entire analysis is purely of local character.

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