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Homotopy Groups of Spheres
List Price: US$15
Order Code: FOMPOS/4
Not available for online purchase and cannot be shipped to destinations outside of the US and Canada. Customers in the US/Canada, please call 1-800-321-4267 to place an order for these items.
This item is also sold as part of the following set: FOMSET/1

One important unsolved problem is the computation of the homotopy groups of spheres, which are formed by the classes of homotopic mappings from one sphere onto another. This picture shows how a large sphere crumples, folds, and layers itself as it maps homotopically onto a smaller sphere. It can also be seen as a haunting image of a castle on the edge of a cliff, against a swirling yellow sky. In color.

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