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Stream: theory: algebraic topology

Topic: morphisms out of the décalage

view this post on Zulip Naso (Apr 02 2022 at 03:19):

On nlab (https://ncatlab.org/nlab/show/decalage#MorphismsOutOfIt) it says there is a morphism Dec0X→constX0\mathsf{Dec_0} X \to \mathsf{const} X_0 "given in degree 0 by s0::X1→X0s_0 :: X_1 \to X_0 and in every higher degree similarly by s0∘⋯∘s0s_0 \circ \cdots \circ s_0."

EDIT: nevermind, I'm pretty sure this is a typo and should be d0d_0 but I'm not sure if I can fix that myself.

view this post on Zulip John Baez (Apr 02 2022 at 16:47):

Right now the ability to edit the nLab has been disabled, as part of moving the whole website.

view this post on Zulip Mike Shulman (Apr 03 2022 at 15:54):

Drop a comment on the nForum that something should be edited when editing functionality is back.

view this post on Zulip Naso (Apr 04 2022 at 00:17):

OK Mike, I'll do that. Is there already a discussion for this on the nForum or do I start a new one?

view this post on Zulip Mike Shulman (Apr 04 2022 at 00:25):

If there's a discussion in the category "Latest Changes" whose name is that of the page in question ("decalage"), then put it there. You can search by topic name and category.

view this post on Zulip Naso (Apr 04 2022 at 01:33):

Done! https://nforum.ncatlab.org/discussion/990/decalage/?Focus=97815#Comment_97815 . Thank you :peace_sign: