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arXiv · 0907.0136

Cappell-Shaneson homotopy spheres are standard

Selman Akbulut
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Abstract

We show that an infinite sequence of homotopy 4-spheres constructed by Cappell-Shaneson are all diffeomorphic to S^4. This generalizes previous results of Akbulut-Kirby and Gompf.

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Selman Akbulut. 2009-10-29. Cappell-Shaneson homotopy spheres are standard. https://arxiv.org/abs/0907.0136

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