List questions from positive-definite

Published on 26 Mar 2026 - 22:57

249

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Is difference of two projection matrices positive semi-definite or negative definite or indefinite?

Published on 27 Mar 2026 - 5:39

60

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Prove that the function is no-negative, connections to Fourier transform of $\exp(-|x|^{\alpha})$

Published on 25 Jul 2020 - 3:04

274

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Showing Gramian Matrix Positive Definite Using Outer Product

Published on 23 Feb 2026 - 8:56

207

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Number of negative elements of a PSD matrix and its square root

Published on 25 Jul 2020 - 14:03

926

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Prove that $q(x,y)=Ax^2+2Bxy+Cy^2$ is positive definite

Published on 26 Mar 2026 - 12:37

184

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Trace Inequality for difference of positive definite matrices

Published on 26 Jul 2020 - 21:17

257

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Is this Hankel matrix positive definite?

Published on 23 Feb 2026 - 21:58

56

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Proving an equality associated with symmetric positive definite matrices

Published on 29 Jul 2020 - 3:33

22

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About sufficient conditions for very structured positive definite matrices

Published on 29 Jul 2020 - 18:44

170

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Positive definite gradient shift?

Published on 25 Mar 2026 - 10:59

135

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How to prove the following double integral is positive definite?

Published on 30 Jul 2020 - 17:13

69

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Similar matrix for numerical computations

Published on 06 Jul 2016 - 8:29

70

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Creating custom correlation matrix

Published on 06 Jul 2016 - 13:39

117

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Maximize $\gamma$ such that $A+\gamma B\succeq 0$

Published on 25 Mar 2026 - 6:02

List Question

Division of Positive Definite Matrix - Inner Product Space

Is difference of two projection matrices positive semi-definite or negative definite or indefinite?

Prove that the function is no-negative, connections to Fourier transform of $\exp(-|x|^{\alpha})$

Showing Gramian Matrix Positive Definite Using Outer Product

Number of negative elements of a PSD matrix and its square root

Prove that $q(x,y)=Ax^2+2Bxy+Cy^2$ is positive definite

Trace Inequality for difference of positive definite matrices

Is this Hankel matrix positive definite?

Proving an equality associated with symmetric positive definite matrices

About sufficient conditions for very structured positive definite matrices

Positive definite gradient shift?

How to prove the following double integral is positive definite?

Similar matrix for numerical computations

Creating custom correlation matrix

Maximize $\gamma$ such that $A+\gamma B\succeq 0$

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