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On the post‐N EWTON ian approximation of theories of gravity
Author(s) -
Kasper U.,
Liebscher D.E.
Publication year - 1974
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.19742950104
Subject(s) - tetrad , covariant transformation , mathematical physics , metric (unit) , gravitation , linear approximation , point (geometry) , meaning (existential) , physics , parametric statistics , mathematics , theoretical physics , classical mechanics , quantum mechanics , philosophy , epistemology , statistics , nonlinear system , geometry , operations management , economics
The physical meaning of the parameters of the post‐N EWTON ian approximation is considered from a theoretical point of view. It is shown that the post‐N EWTON ian approximation of any L ORENTZ ‐covariant theory, which implies P OISSON equations for every metric coefficient in the linear approximation, is the member of a three‐parametric family of post‐N EWTON ian metrics. Some tetrad theories are cited.