Spacetime foam

General Relativity – An Einstein Centenary Survey

J M Irvine · Physics Bulletin · 1980 · 2.7K citations

Natural Sciences, Astronomy, Physics +9

Relativity, groups and topology

L.R. · Nuclear Physics · 1965 · 1.1K citations

Natural Sciences, Mathematics, Physics +10

Gravitational multi-instantons

G. W. Gibbons, S. W. Hawking · Physics Letters B · 1978 · 778 citations

Path integrals and the indefiniteness of the gravitational action

G. W. Gibbons, S. W. Hawking, Malcolm J. Perry · Nuclear Physics B · 1978 · 675 citations

Natural Sciences, Astronomy, Physics +14

Compact four-dimensional Einstein manifolds

Nigel Hitchin · Journal of Differential Geometry · 1974 · 374 citations · Full text

Natural Sciences, Mathematics, Physics +12