Last Updated
：2025/12/04
Gibbons-Hawking-York boundary term
Proper noun
Japanese Meaning
一般相対性理論において、時空の境界が存在する場合に、Einstein‐Hilbert作用に補正項として加え、変分原理を正しく適用するために必要な境界項。
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(physics) In general relativity, a term that needs to be added to the Einstein-Hilbert action when the underlying spacetime manifold has a boundary.
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Gibbons-Hawking-York boundary term
To obtain a well-posed variational principle for a spacetime with a boundary, one must include the Gibbons-Hawking-York boundary term in the gravitational action.
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To obtain a well-posed variational principle for a spacetime with a boundary, one must include the Gibbons-Hawking-York boundary term in the gravitational action.
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