Abstract
We show here 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.
We show here 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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