Gibbons–Hawking–York boundary term

E970552 UNEXPLORED

The Gibbons–Hawking–York boundary term is an additional term in the gravitational action of general relativity that ensures a well-defined variational principle in spacetimes with boundaries.

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Gary W. Gibbons knownFor Gibbons–Hawking–York boundary term
Gary W. Gibbons notableConcept Gibbons–Hawking–York boundary term
this entity surface form: Gibbons–Hawking–York boundary term in gravitational action