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Oct 25, 2018 at 13:18 answer added Kapil timeline score: 1
Oct 25, 2018 at 2:37 comment added Sirui Lu @RobertIsrael Is there any rigorous proof that the span of $A_1v$, $A_2 v$, $A_3v$ and $v$ will have dimension 3?
Oct 25, 2018 at 2:15 review Close votes
Oct 29, 2018 at 11:02
Oct 25, 2018 at 1:54 comment added Robert Israel Of course it's not unique: you can multiply $(a_1, a_2, a_3, s)$ by the same scalar. Generically, that will be all, i.e. the span of $A_1 v$, $A_2 v$, $A_3 v$ and $v$ will have dimension $3$.
Oct 25, 2018 at 1:26 history asked Sirui Lu CC BY-SA 4.0