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Nov 11, 2014 at 22:14 comment added Yemon Choi @AliTaghavi Surely this should be asked as a separate question?
Nov 11, 2014 at 22:06 comment added Ali Taghavi A question on nilpotency: Is there a $C^{*}$ algebra such that each nilpotentce element has all its roots: that is for every nilpotent $a$ and $n\in \mathbb{N}$ there is $b$ with $b^{n}=a$?
Mar 29, 2013 at 23:47 answer added Yemon Choi timeline score: 10
Mar 29, 2013 at 23:40 vote accept Yemon Choi
Mar 29, 2013 at 23:06 answer added Douglas Somerset timeline score: 16
Mar 29, 2013 at 21:56 history asked Yemon Choi CC BY-SA 3.0