Timeline for The derived exact couple of an exact couple without chasing elements
Current License: CC BY-SA 4.0
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| Jun 27 at 12:41 | comment | added | Elías Guisado Villalgordo | $\def\Im{\operatorname{Im}}\def\Ker{\operatorname{Ker}}$In McCleary's User's Guide to Spectral Sequences the exactness of \eqref{seq} is proven with the sequence of equalities:$$\Ker f' =\Ker f/\Im d=\Im g/\Im d=\Im g'.$$Among these, the last one is the only one that I think is non-trivial because of the way $g'$ is defined. | |
| Jun 27 at 8:25 | history | asked | Elías Guisado Villalgordo | CC BY-SA 4.0 |