User adam W

1 vote

reducing invertible matrix in an equation of matrix

answered Oct 13, 2012 at 0:03

1 vote

Eigen Values of Sum of Negative Definite Matrix and a rank-one Positive SemiDefinite Matrix , i.e. ($A+xx^{H}$)

answered Oct 14, 2012 at 18:16

1 vote

Accepted

Convex Combination of Hermitian Matrices

answered Oct 14, 2012 at 22:08

1 vote

Gram Matrices Rank

answered Oct 13, 2012 at 2:31

1 vote

Accepted

Quadratic Matrix Equation

answered Oct 25, 2012 at 13:45

1 vote

Compute Cholesky of $\Sigma^{-1}$ from Cholesky of $\Sigma$

answered Oct 28, 2012 at 3:12

1 vote

Rank of a rectangular Vandermonde Matrix to which weighted columns are added

answered Mar 19, 2013 at 16:28

1 vote

Accepted

SVD and how to get two points on a 3D line from the representation of the line by means of two intersecting planes?

answered Mar 22, 2013 at 2:55

1 vote

Accepted

Computing the decay factor for a full rank wide matrix, or finding a unit vector farthest away from a set of spanning unit vectors

answered Mar 20, 2013 at 17:33

1 vote

Computing the decay factor for a full rank wide matrix, or finding a unit vector farthest away from a set of spanning unit vectors

answered Mar 25, 2013 at 23:36

1 vote

Accepted

Transforming matrix-equation to overdetermined minimum problem

answered Mar 16, 2013 at 15:10

1 vote

Showing a Linear Transformation is $0$ through an Inner Product Condition

answered Mar 16, 2013 at 21:35

1 vote

Accepted

RREF Matrix with unknown variable d

answered Feb 28, 2013 at 3:03

1 vote

Accepted

Finding a condition(s) on a left inverse of a tall matrix that makes it unique.

answered Mar 5, 2013 at 2:18

1 vote

Looking for solution of a linear equation (which is a very important lemma in my research).

answered Mar 5, 2013 at 16:52

1 vote

Accepted

Variant of Cholesky Decomposition: solve $B^TB=A$ for general square matrix $A$

answered Feb 3, 2013 at 18:54

1 vote

Eigenvector of a sparse structured matrix corresponding to the eigenvalue 1

answered Feb 7, 2013 at 15:45

1 vote

Finding all matrices $B$ such that $AB=BA$ for a fixed matrix $A$

answered Feb 7, 2013 at 3:55

1 vote

Algorithm to find the optimal setup

answered Jan 22, 2013 at 5:05

1 vote

Accepted

multiplying rows to get great pivots for numerical $LR$ decomposition of invertible Matrix $A$

answered Jan 30, 2013 at 16:13

1 vote

Accepted

Matrix Transpose and Multiplication Notation : $uv^{T}$ vs $uv^{T}I$

answered Jan 27, 2013 at 12:15

1 vote

Cofactor theorem

answered Jan 29, 2013 at 16:47

1 vote

Matrix polynomial - is there a trick?

answered Jan 18, 2013 at 17:52

1 vote

Relation between Eigenvalues of a given matrix and another set of rank-one matrices.

answered Nov 24, 2013 at 18:31

1 vote

the determinant of the adjugate matrix removing the last line and the last column

answered Oct 29, 2013 at 21:27

1 vote

Odd or even row dot product based on order of Matrix

answered Nov 8, 2013 at 16:46

1 vote

Known probability for one month, what is the probability for 100 months?

answered Nov 26, 2013 at 2:27

1 vote

Diagonalizing Matrices

answered Mar 22, 2013 at 2:26

1 vote

Accepted

Recovering matrix elements from a matrix equation

answered Mar 26, 2013 at 17:59

1 vote

Eigenvalues of anti-triangular block matrix

answered Mar 29, 2013 at 15:11

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146 Answers

reducing invertible matrix in an equation of matrix

Eigen Values of Sum of Negative Definite Matrix and a rank-one Positive SemiDefinite Matrix , i.e. ($A+xx^{H}$)

Convex Combination of Hermitian Matrices

Gram Matrices Rank

Quadratic Matrix Equation

Compute Cholesky of $\Sigma^{-1}$ from Cholesky of $\Sigma$

Rank of a rectangular Vandermonde Matrix to which weighted columns are added

SVD and how to get two points on a 3D line from the representation of the line by means of two intersecting planes?

Computing the decay factor for a full rank wide matrix, or finding a unit vector farthest away from a set of spanning unit vectors

Computing the decay factor for a full rank wide matrix, or finding a unit vector farthest away from a set of spanning unit vectors

Transforming matrix-equation to overdetermined minimum problem

Showing a Linear Transformation is $0$ through an Inner Product Condition

RREF Matrix with unknown variable d

Finding a condition(s) on a left inverse of a tall matrix that makes it unique.

Looking for solution of a linear equation (which is a very important lemma in my research).

Variant of Cholesky Decomposition: solve $B^TB=A$ for general square matrix $A$

Eigenvector of a sparse structured matrix corresponding to the eigenvalue 1

Finding all matrices $B$ such that $AB=BA$ for a fixed matrix $A$

Algorithm to find the optimal setup

multiplying rows to get great pivots for numerical $LR$ decomposition of invertible Matrix $A$

Matrix Transpose and Multiplication Notation : $uv^{T}$ vs $uv^{T}I$

Cofactor theorem

Matrix polynomial - is there a trick?

Relation between Eigenvalues of a given matrix and another set of rank-one matrices.

the determinant of the adjugate matrix removing the last line and the last column

Odd or even row dot product based on order of Matrix

Known probability for one month, what is the probability for 100 months?

Diagonalizing Matrices

Recovering matrix elements from a matrix equation

Eigenvalues of anti-triangular block matrix