# Tell, please, what are the PSK\precZSK and PSK\succZSK operators for

Tell, please, what are the $\prec$ and $\succ$ operators for when you use it with matrices?
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Most commonly, the relation $A\succ B$ is used to indicate "A-B" is positive definite.
$A\succ 7.3$ means $A\succ 7.3I$; that is, "A is symmetric, and its eigenvalues are greater than 7.3."
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Ben Owens
The name of this $\succ$ operator in the matrices is succeed and is $\prec$ precedes.