List questions from pseudoinverse

Published on 25 Mar 2026 - 12:46

123

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Is $A - AB(B + BAB)^+ BA = A(A + ABA)^+A$ true for positive semidefinite $A, B$?

Published on 04 May 2023 - 0:13

48

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Is it true that $\lim\limits_{z \to 0^+} \left((A + z I)^{-1} + B\right)^{-1} = A(A + ABA)^+ A$?

Published on 05 May 2023 - 0:42

66

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Polar Decomposition using Pseudoinverse

Published on 05 May 2023 - 23:50

18

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Finding the nearest pseudoinverse pair for two matrices

Published on 06 May 2023 - 13:44

143

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Integral involving a Dirac delta

Published on 07 May 2023 - 13:28

53

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Question regarding the projection of a vector onto the nullspace of a matrix

Published on 16 May 2023 - 17:56

136

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Moore-Penrose pseudoinverse as a limit

Published on 28 May 2023 - 14:19

73

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What can be said about $AA^+$ for symmetric real matrices?

Published on 29 May 2023 - 4:43

73

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Linear least squares and homogeneous solutions

Published on 30 May 2023 - 6:12

40

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Solve nonlinear algebra equation

Published on 02 Jun 2023 - 21:49

88

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SVD-based pseudoinverse solution sensitivity to equation linear combinations

Published on 06 Jun 2023 - 0:07

15

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Are least square solutions maintained?

Published on 11 Jun 2023 - 15:08

31

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Vector similar to, but not quite equal to least squares approximation of another vector

Published on 14 Jun 2023 - 19:18

126

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Potential error in paper asserting commutativity of symmetric matrix with Moore-Penrose projection operator

Published on 28 Jun 2023 - 16:46

List Question

SVD: Picking U and V when singular values are repeated

Is $A - AB(B + BAB)^+ BA = A(A + ABA)^+A$ true for positive semidefinite $A, B$?

Is it true that $\lim\limits_{z \to 0^+} \left((A + z I)^{-1} + B\right)^{-1} = A(A + ABA)^+ A$?

Polar Decomposition using Pseudoinverse

Finding the nearest pseudoinverse pair for two matrices

Integral involving a Dirac delta

Question regarding the projection of a vector onto the nullspace of a matrix

Moore-Penrose pseudoinverse as a limit

What can be said about $AA^+$ for symmetric real matrices?

Linear least squares and homogeneous solutions

Solve nonlinear algebra equation

SVD-based pseudoinverse solution sensitivity to equation linear combinations

Are least square solutions maintained?

Vector similar to, but not quite equal to least squares approximation of another vector

Potential error in paper asserting commutativity of symmetric matrix with Moore-Penrose projection operator

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