Want to take part in these discussions? Sign in if you have an account, or apply for one below
Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.
expanded/polished a little the Definition at exact couple
I have expanded the section Spectral sequences from exact couples
I have expanded a little the details of the proof of the converging cohomological spectral sequence constructed from an exact couple here, trying to work out some subtle points more transparently.
Apart from some more comments on how to see the convergence (which I am still not quite happy with, but anyway) I added the remark that the formula for the $E_\infty$-page manifestly identifies its elements with images of the first page under the map
$\array{ D \\ & {}_{\mathllap{f}}\nwarrow \\ && E }$in the exact couple
$\array{ D && \overset{g}{\longrightarrow} && D \\ & {}_{\mathllap{f}}\nwarrow && \swarrow_{\mathrlap{h}} \\ && E }$1 to 3 of 3