Timeline for Cohomology and Eilenberg-MacLane spaces
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Dec 19, 2016 at 15:34 | history | edited | Mark Grant | CC BY-SA 3.0 |
changed a \vee to a \wedge in point 4
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| Nov 5, 2016 at 10:34 | history | edited | Andrew Stacey | CC BY-SA 3.0 |
If we're putting the tilde's in, they should be put in throughout.
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| Nov 5, 2016 at 0:43 | history | edited | Michael Albanese | CC BY-SA 3.0 |
deleted 169 characters in body
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| Oct 28, 2009 at 7:43 | comment | added | Andrew Stacey | The Pontrijagin product on a based loop space is concatenation of loops. This defines a morphism Omega Y x Omega Y -> Omega Y for any space Y. Then given two morphisms f,g X -> Y, we form the composition X -> X x X -> Omega Y x Omega Y -> Omega Y. | |
| Oct 28, 2009 at 6:06 | vote | accept | Aaron Mazel-Gee | ||
| Oct 28, 2009 at 6:06 | comment | added | Aaron Mazel-Gee | Thanks. So for question 3, we just identify the points of K(G,n) as loops in K(G,n+1), and then...what is the Pontrjagin product, exactly? To find the new image of a point of X, we take the product of its two old image points (i.e., compose the loops in K(G,n+1) that they represent)? | |
| Oct 27, 2009 at 21:33 | history | answered | Andrew Stacey | CC BY-SA 2.5 |