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Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.

• CommentRowNumber1.
• CommentAuthorUrs
• CommentTimeFeb 3rd 2021
• (edited Feb 3rd 2021)

I have added a subsection Applications – In Cohomotopy and Cobordism theory highlighting how the properness of maps from compact to Hausdorff spaces is what makes the unstable Pontryagin-Thom isomorphism tick – for closed (hence compact) manifolds.

(This seems profound enough an example to justify mentioning. Also, it’s a point that tends to get lost in accounts of the theorem…)

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