Of the existence of 7-dimensional spheres with nonstandard differentiable structure, which marked the beginning of a new field – differential topology
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Of the existence of 7-dimensional spheres with nonstandard differentiable structure, which marked the beginning of a new field – differential topology
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-18 from Wikipedia. The archived copy is preserved so this citation survives link rot.