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when toggle format what by license comment
Jun 5, 2014 at 21:48 comment added Christian Remling This works if $A=0$, and if $|\{ A_{ij}\not= 0 \}|\ge 1$, then it works too with $C(m,N)=N$.
Jun 5, 2014 at 20:55 answer added rodms timeline score: 2
Feb 4, 2014 at 13:40 history asked Paglia CC BY-SA 3.0