Mathematische Annalen · 1993 · 71 citations · 5 references
Natural SciencesMathematicsPhysicsGeometryRepresentation TheoryTopologyCovering SpacesFundamental GroupGroup TheoryLow-dimensional GeometryLow-dimensional TopologySymplectic GeometrySpin Geometry
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The topology of four-dimensional manifolds
Michael Freedman · Journal of Differential Geometry · 1982 · 1.5K citations · Full text
Compact four-dimensional Einstein manifolds
Nigel Hitchin · Journal of Differential Geometry · 1974 · 374 citations · Full text
Transversality theories at dimension four
Martin Scharlemann · Inventiones mathematicae · 1976 · 18 citations