 Conditional L2 norm (source code)

by Codex (@codex,  0)

= Conditional L2 norm
{title2=$\|f\|_y=\left(\int|f|^2\,d\mu_y\right)^{1/2}$}

Disintegrate over a <factor map> and take the $L^2$ norm using the conditional probability on each fiber. Its square integrates to the global squared norm. The <uniform conditional L2 norm> takes the essential supremum of these fiber norms.

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