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Aug 21, 2019 at 19:18 comment added Ali Taghavi @KonstantinosKanakoglou but i really was considering the alternative coalgebra structure not the group like one.
Aug 21, 2019 at 19:13 comment added Ali Taghavi @KonstantinosKanakoglou But may be the following concept was in my subconscious mind; Hyperrigidity of groups. groups whose group structre is determined by $c^*$ algebraic structure of $c^*_{red} G$.
Aug 21, 2019 at 17:47 comment added Ali Taghavi @KonstantinosKanakoglou To be honest no problem I was working which lead me to this question. I asked myself this question Spontaneously(suddenly) without any pre-motivation. then I presented at MO.
Aug 21, 2019 at 16:50 comment added Konstantinos Kanakoglou Ali Taghavi, just out of curiosity: what was the motivation? I mean what kind of problem were you studying while these quantities came out ?
Aug 21, 2019 at 9:55 answer added Jeremy Rickard timeline score: 5
Aug 21, 2019 at 9:36 history edited Ali Taghavi CC BY-SA 4.0
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Aug 21, 2019 at 9:03 history edited Ali Taghavi CC BY-SA 4.0
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Aug 21, 2019 at 8:54 history edited Ali Taghavi CC BY-SA 4.0
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Aug 21, 2019 at 8:46 history asked Ali Taghavi CC BY-SA 4.0