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gr-qc1997
Building blocks for topology change in 3D
Radu Ionicioiu
We investigate topology change in 3D. Using Morse theory and handle decomposition we find the set of elementary cobordisms for 3-manifolds. These are: (i) Ø<-> S^2; (ii) Σ_g <-> Σ_…
gr-qc1997
Topology change from Kaluza-Klein dimensions
Radu Ionicioiu
In this letter we show that in a Kaluza-Klein framework we can have arbitrary topology change between the macroscopic (i.e. noncompactified) spacelike 3-hypersurfaces. This is achi…