Question

Proof that $AA^T$ is invertible if $A$ has independent rows

score 410 · Answer 1 · 2021-02-01 17:53:07

410

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Proof that $AA^T$ is invertible if $A$ has independent rows

Published on 01 Feb 2021 - 17:53

score 179 · Answer 2 · 2021-02-02 17:24:56

179

Views

What are the requirements on a matrix $A$ for $A^TA$ to have an inverse?

Published on 02 Feb 2021 - 17:24

score 475 · Answer 3 · 2021-02-06 09:48:05

475

Views

A matrix equation $Ax=0$ has infinite solutions, does $A^Tx = 0$ have infinite solutions?

Published on 06 Feb 2021 - 9:48

score 60 · Answer 4 · 2021-02-08 16:52:41

60

Views

Determinant equals 1 whereas Inverse unequal to the transpose?

Published on 08 Feb 2021 - 16:52

score 86 · Answer 5 · 2021-02-09 08:52:00

86

Views

What does it mean to have the transpose symbol on the solution set of a linear system?

Published on 09 Feb 2021 - 8:52

score 79 · Answer 6 · 2021-02-17 18:34:12

79

Views

How do I find A if I have the transpose of A?

Published on 17 Feb 2021 - 18:34

score 57 · Answer 7 · 2021-02-28 18:45:38

57

Views

If $X \mapsto X^tG$ is an isomorphism, then $G$ is an invertible matrix. (Bilinear forms)

Published on 28 Feb 2021 - 18:45

score 415 · Answer 8 · 2021-03-04 13:28:32

415

Views

Covariance matrix multiplied by its transpose

Published on 04 Mar 2021 - 13:28

score 59 · Answer 9 · 2021-03-07 09:36:40

59

Views

Orthogonally equivalent matrices

Published on 07 Mar 2021 - 9:36

score 76 · Answer 10 · 2021-03-07 17:05:12

76

Views

How can we find the determinant of $2A^TA$ while only knowing the determinant of A and the order of the matrix?

Published on 07 Mar 2021 - 17:05

score 56 · Answer 11 · 2021-03-09 07:41:51

56

Views

When I build a representative matrix, I don't understand when to "transpose" its components

Published on 09 Mar 2021 - 7:41

score 91 · Answer 12 · 2026-03-26 19:24:40

91

Views

Question on invertible matrices $(E-A)$

Published on 26 Mar 2026 - 19:24

score 40 · Answer 13 · 2021-03-17 05:03:45

40

Views

Can we find the eigenvalues of a linear operator where it takes a vector to its transpose?

Published on 17 Mar 2021 - 5:03

score 35 · Answer 14 · 2021-03-21 02:58:17

35

Views

Relationship between two elements from two dual bases

Published on 21 Mar 2021 - 2:58

score 23 · Answer 15 · 2021-03-25 11:53:26

23

Views

Transposing ligand binding equation

Published on 25 Mar 2021 - 11:53

List Question

Proof that $AA^T$ is invertible if $A$ has independent rows

What are the requirements on a matrix $A$ for $A^TA$ to have an inverse?

A matrix equation $Ax=0$ has infinite solutions, does $A^Tx = 0$ have infinite solutions?

Determinant equals 1 whereas Inverse unequal to the transpose?

What does it mean to have the transpose symbol on the solution set of a linear system?

How do I find A if I have the transpose of A?

If $X \mapsto X^tG$ is an isomorphism, then $G$ is an invertible matrix. (Bilinear forms)

Covariance matrix multiplied by its transpose

Orthogonally equivalent matrices

How can we find the determinant of $2A^TA$ while only knowing the determinant of A and the order of the matrix?

When I build a representative matrix, I don't understand when to "transpose" its components

Question on invertible matrices $(E-A)$

Can we find the eigenvalues of a linear operator where it takes a vector to its transpose?

Relationship between two elements from two dual bases

Transposing ligand binding equation

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