Hamiltonians for Reduced Gravity
Grant, James D. E. · Moss, Ian G.
Original · EN
A generalised canonical formulation of gravity is devised for foliations of spacetime with codimension n≥1. The new formalism retains n-dimensional covariance and is especially suited to 2+2 decompositions of spacetime. It is also possible to use the generalised formalism to obtain boundary contributions to the 3+1 Hamiltonian.
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