S W Hawking and C J Hunter 1996 Class. Quantum Grav. 13 2735 doi:10.1088/0264-9381/13/10/012
S W Hawking and C J Hunter
Show affiliationsThis paper generalizes earlier work on Hamiltonian boundary terms by omitting the requirement that the spacelike hypersurfaces
intersect the timelike boundary
orthogonally. The expressions for the action and Hamiltonian are calculated and the required subtraction of a background contribution is discussed. The new features of a Hamiltonian formulation with non-orthogonal boundaries are then illustrated in two examples.
04.20.Fy Canonical formalism, Lagrangians, and variational principles
04.20.Gz Spacetime topology, causal structure, spinor structure
Issue 10 (October 1996)
Received 10 April 1996
S W Hawking and C J Hunter 1996 Class. Quantum Grav. 13 2735
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