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Smoothing topological isotopy of surfaces in 4-manifolds with a boundary geometric dual

Cha, Jae Choon et al.
arXiv (All) · Papers
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geometric-topology
We prove that topological isotopy implies smooth isotopy for neat surfaces with common nonempty boundary in a smooth orientable 4-manifold, in the presence of a geometric dual in the boundary. Together with our earlier work on surface smoothing, this shows that the natural map from smooth isotopy cl
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