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A moduli space of exotic ℝ 4 'S
Robert E. Gompf
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Source: Crossref
Published: Jun 1, 1989
DOI: 10.1017/s0013091500028698
Open original source ↗Source abstract
In 1982, the first exotic ℝ 4 was discovered—a smooth manifold homeomorphic to ℝ 4 , but not diffeomorphic to it. The object shocked topologists by its open defiance of the rules of high-dimensional smoothing theory. The exotic ℝ 4 was constructed by connecting the two powerful machines of Freedman [4] and Donaldson [2] to earlier work of Casson [1].
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