Jeff Strom
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Registered User
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May 8 |
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Homotopy equivalences preserving structure Can we express $X$ as a homotopy colimit of the various intersections and the map $f$ as a pointwise homotopy equivalence of diagrams? |
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May 7 |
awarded | ● Popular Question |
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Mar 23 |
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What are your favorite instructional counterexamples? The analogs in higher dimensions have nonzero homology in arbitrarily high dimensions! |
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Feb 19 |
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Strengthening the Compression Lemma in homotopy theory I think this is just straightforward obstruction theory. If I'm right, this will be in Whitehead's account of obstruction theory. I'll check when I have the book and some time, if I remember to. |
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Jan 29 |
awarded | ● Yearling |
