List questions from positive-definite

Published on 10 Apr 2026 - 22:45

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Relation between the maximum eigenvalues of symmetric positive definite matrix $A$ and $B A B^\dagger$

Published on 10 May 2026 - 14:55

68

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How can we conclude that $q$ is indefinite?

Published on 14 Apr 2026 - 20:37

2.1k

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Analyze the symmetric property of positive definite matrices

Published on 13 Apr 2026 - 10:23

807

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Inequality for determinant of convex combination

Published on 11 Apr 2026 - 15:23

74

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Inequality for inner products

Published on 10 Apr 2026 - 13:49

93

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Conditions on correlation parameter for positive (semi) definitiveness of variance-covariance matrix

Published on 10 May 2026 - 21:57

266

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Is there an easy way to compute the determinant of this block matrix?

Published on 10 May 2026 - 12:34

406

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Nearest Kronecker Product with Positive Semi-Definite Residual

Published on 10 May 2026 - 15:51

884

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How to prove that inverse matrix is element-wise greater than the other

Published on 12 Apr 2026 - 15:03

1.1k

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Positive semidefinite matrix using Schur Complement

Published on 06 May 2026 - 17:32

48

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positive matrices diagonalised by involutions

Published on 10 May 2026 - 15:12

820

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Let $A\in\mathbb{R}^{n\times n}$ be positive definite and symmetric. Show that $\langle x,y \rangle_A:=\langle Ax,y \rangle$ defines an inner product.

Published on 15 Apr 2026 - 23:45

208

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Continuity of a supremum function

Published on 12 Apr 2026 - 5:55

119

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Uniform bound on a compact space (by Taylor expansion?)

Published on 13 Apr 2026 - 10:32

List Question

Question about a step in Schur product theorem

Relation between the maximum eigenvalues of symmetric positive definite matrix $A$ and $B A B^\dagger$

How can we conclude that $q$ is indefinite?

Analyze the symmetric property of positive definite matrices

Inequality for determinant of convex combination

Inequality for inner products

Conditions on correlation parameter for positive (semi) definitiveness of variance-covariance matrix

Is there an easy way to compute the determinant of this block matrix?

Nearest Kronecker Product with Positive Semi-Definite Residual

How to prove that inverse matrix is element-wise greater than the other

Positive semidefinite matrix using Schur Complement

positive matrices diagonalised by involutions

Let $A\in\mathbb{R}^{n\times n}$ be positive definite and symmetric. Show that $\langle x,y \rangle_A:=\langle Ax,y \rangle$ defines an inner product.

Continuity of a supremum function

Uniform bound on a compact space (by Taylor expansion?)

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