$$ \newcommand\bs[1]{\boldsymbol{#1}} \newcommand\norm[1]{\left\lVert#1\right\rVert} \DeclareMathOperator{\Tr}{Tr} \newcommand\argmin[1]{\underset{\bs{#1}}{\arg\min}} \newcommand\argmax[1]{\underset{\bs{#1}}{\arg\max}} $$
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$$ \newcommand\bs[1]{\boldsymbol{#1}} \newcommand\norm[1]{\left\lVert#1\right\rVert} \DeclareMathOperator{\Tr}{Tr} \newcommand\argmin[1]{\underset{\bs{#1}}{\arg\min}} \newcommand\argmax[1]{\underset{\bs{#1}}{\arg\max}} $$
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$$ \newcommand\bs[1]{\boldsymbol{#1}} \newcommand\norm[1]{\left\lVert#1\right\rVert} \DeclareMathOperator{\Tr}{Tr} \newcommand\argmin[1]{\underset{\bs{#1}}{\arg\min}} \newcommand\argmax[1]{\underset{\bs{#1}}{\arg\max}} $$