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Diffeomorphisms of 4-manifolds with boundary and exotic embeddings
Published 28 Mar 2022 in math.GT, math.DG, and math.SG | (2203.14878v2)
Abstract: We define family versions of the invariant of 4-manifolds with contact boundary due to Kronheimer and Mrowka and use these to detect exotic diffeomorphisms of 4-manifolds with boundary. Further, we show the existence of the first example of exotic 3-spheres in a smooth closed 4-manifold with diffeomorphic complements.
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