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A moduli space of exotic ℝ4'S
Published online by Cambridge University Press: 20 January 2009
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In 1982, the first exotic ℝ4 was discovered—a smooth manifold homeomorphic to ℝ4, but not diffeomorphic to it. The object shocked topologists by its open defiance of the rules of high-dimensional smoothing theory. The exotic ℝ4 was constructed by connecting the two powerful machines of Freedman [4] and Donaldson [2] to earlier work of Casson [1].
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- Copyright © Edinburgh Mathematical Society 1989
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