Timeline for Comodule exercises desired
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 17, 2011 at 19:52 | comment | added | Ostap Chervak | while reading these two post and seeing bunch of words like coalgebra,comodule,coflat,cosemisiple,coalgebra,Cotor I was terribly confused of phrase " construct a counterexample". Just a minor COmment | |
| Jul 29, 2010 at 8:28 | comment | added | Leonid Positselski | It's not too difficult, yes. For those who would rather look up a written proof, there is the book "Hopf Algebras" by M.E. Sweedler, containing many results about coalgebras. Another source is the book "Hopf algebras and their actions on rings" by S. Montgomery. | |
| Jul 28, 2010 at 23:12 | comment | added | Sean Tilson | thank you very much! is it easy to see that every coalgebra is the union of its finite dimensional subalgebras? | |
| Jul 28, 2010 at 21:12 | history | answered | Leonid Positselski | CC BY-SA 2.5 |