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Results tagged with linear-matrix-inequalities
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user 8799
Linear Matrix Inequalities (LMIs)
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Accepted
A Matrix Inequality for positive definite matrices
The answer is No. Here is a counter-example:
$$X=\begin{pmatrix} 9 & 3 \\ 3 & 1 \end{pmatrix},\qquad Y=\begin{pmatrix} 1 & 3 \\ 3 & 9 \end{pmatrix}.$$
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