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Key terms: z math if k end bmatrix begin real mz we geq matrices textbf vectors mathbb ij hermitian leq complex positive definite nonzero square define symmetric corner properties entries leading operator negative real matrix hermitian matrix upper left if and only if necessarily quadratic form principal minors conjugate transpose positive semidefinite cholesky decomposition positive definite matrix Search external links cited by footnotes on Wikipedia page Positive-definite matrix: |
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