Einstein-Hilbert action — An Etymological Dictionary of Astronomy and Astrophysics

Einstein-Hilbert action

ژیرش ِ اینشتین-هیلبرت

žireš-e Einstein-Hilbert

Fr.: action de Einstein-Hilbert

In → general relativity, the → action that yields → Einstein’s field equations. It is expressed by:
S_{EH</SUB = (1/2κ)∫d⁴x
(-g)^1/2R + S^m,

where κ ≡ 8πG and S^m is the matter part
of the action.}

See also: → Einstein; → Hilbert space; → action.

An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک