Timeline for On limits and Colimits
Current License: CC BY-SA 2.5
7 events
| when toggle format | what | by | license | comment | |
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| Feb 10, 2010 at 6:07 | history | made wiki | Post Made Community Wiki by Harry Gindi | ||
| Dec 12, 2009 at 13:15 | comment | added | Shizhuo Zhang | Thank you. In fact, I did not have much motivation to ask this question. It is just from some of my homework.In my homework,the question is whether following two morphism exists 1. Hom(A, infinite coproduct Bi)--->infinite product Hom(A,Bi) 2. infinite coproduct Hom(A,Bi)---->Hom(A, infinite coproduct Bi) where A,Bi are all abelian groups. I just wonder know if I use co(limit)instead of co(product),whether they still exist. | |
| Dec 12, 2009 at 13:02 | history | edited | Harry Gindi | CC BY-SA 2.5 |
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| Dec 12, 2009 at 12:56 | comment | added | Harry Gindi | Covariant hom is covariant, so the first is just false. | |
| Dec 12, 2009 at 12:54 | comment | added | Shizhuo Zhang | actually, the original problem is whether these two morphism exist for infinite products and infinite coproduts. And A,Bi are abelian groups | |
| Dec 12, 2009 at 12:51 | history | edited | Harry Gindi | CC BY-SA 2.5 |
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| Dec 12, 2009 at 12:45 | history | answered | Harry Gindi | CC BY-SA 2.5 |