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Feb 24, 2023 at 14:23 comment added nicolas what paper is it ? link seems broken
Nov 20, 2013 at 3:04 review Close votes
Nov 20, 2013 at 14:19
Nov 14, 2013 at 16:22 comment added Benjamin Steinberg Try reading this paper projecteuclid.org/DPubS/Repository/1.0/…, which is one of the original references on the subject. The terminology is a bit outdated but the paper is very readable.
Nov 14, 2013 at 2:05 review Close votes
Nov 14, 2013 at 4:58
Nov 14, 2013 at 0:47 comment added Zhen Lin You shouldn't have skipped ahead. The bit about idempotents is very important! The key point is that the Yoneda embedding is fully faithful, so any idempotent on $\mathcal{C}(-, c)$ comes from a unique idempotent on $C$, and that the splitting of an idempotent is preserved by any functor whatsoever.
Nov 14, 2013 at 0:40 review First posts
Nov 14, 2013 at 1:35
Nov 14, 2013 at 0:22 history asked Samuel M CC BY-SA 3.0