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arxiv: 1211.4900 · v1 · pith:NGI3YTNGnew · submitted 2012-11-20 · 🧮 math.GN · math.GT

Exotic Differential Structures in Dimension 2

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keywords structuresdifferentialexoticlongsupportsalephdiffeomorphicdimension
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It is known that the long line supports $2^{\aleph_1}$ many non-diffeomorphic differential structures. We show that the long plane supports a similar number of exotic differential structures, ie structures which are not merely diffeomorphic to the product of two structures on the factor spaces.

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