Timeline for Does homology have a coproduct?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 2, 2016 at 17:58 | comment | added | David E Speyer | Just double subscripts to save space on the page. | |
| Apr 2, 2016 at 17:46 | comment | added | john mangual | Can you explain why $C_{ij}\equiv C_i \times C_j$ is such a natural piece of notation? I have never had intuition for co-multiplication. To me it looks just likr factoring. Is $6=2\times 3$ a co-multiplication ? | |
| Apr 2, 2016 at 17:22 | history | edited | David E Speyer | CC BY-SA 3.0 |
added 20 characters in body
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| Apr 2, 2016 at 16:04 | history | answered | David E Speyer | CC BY-SA 3.0 |