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Mar 28, 2018 at 17:49 vote accept Raphael
Mar 28, 2018 at 14:11 history edited Raphael CC BY-SA 3.0
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Mar 28, 2018 at 13:55 comment added Raphael @FedorPetrov the matrix $A$ acts on $\ell^{2}$.
Mar 27, 2018 at 18:23 answer added Mikael de la Salle timeline score: 4
Mar 27, 2018 at 17:56 comment added Fedor Petrov I am confused. What is your $\ell^2 $, sequences or matrices?
Mar 27, 2018 at 17:23 review First posts
Mar 27, 2018 at 18:10
Mar 27, 2018 at 17:20 history asked Raphael CC BY-SA 3.0