A fake cusp and a fishtail

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We construct smooth 4-manifolds that are homeomorphic but not diffeomorphic to the "cusp" and the "fishtail", which are certain thickened singular 2-spheres.
14 pages, 22 figures

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Geometric Topology, Algebraic Geometry, 57R10

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http://salesiana.dossiersoluciones.com/handle/123456789/78348

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9904058
 http://arxiv.org/abs/math/9904058

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arXiv