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Framed and oriented links of codimension 2

Jianhua Wang
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Abstract

We discuss the relationship between the m-th homotopy group of the one-point union of r copies of the two-dimensional sphere and the m-th homotopy group of the one-point union of r+1 copies of the Thom space of the oriented two-dimensional universal vector bundle. Using a suitably choosen isomorphism between them a forgetful homomorphism is computed by evaluating on factors of the Hilton splitting.

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Jianhua Wang. 2002-06-06. Framed and oriented links of codimension 2. https://arxiv.org/abs/math/0205300

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