Significance of Hessian Matrix
110186
How to interpret Hessian of a function
22754
"matrix is not positive definite" - even when highly correlated variables are removed
79737
Characterization of two-step 2x2 stochastic matrices
131564
What is the Jacobian matrix?
104008
Can the empirical Hessian of an M-estimator be indefinite?
112271
Definition of the hessian as a bilinear functional on the tangent space
77137
The rank of Jacobian matrix at a point of affine variety is independent of choice of generators
46567
Derivatives of inverse matrix
37653
Singular covariance matrix in Mahalanobis distance in Matlab
88746
Positive definiteness of the matrix $A+B$
59125
Why does this matrix give the derivative of a function?
139530
Taking derivatives with respect to a matrix
70606
Show that the LU decomposition of matrices of the form $\left[\begin{smallmatrix}0& x\\0 & y\end{smallmatrix}\right]$ is not unique
13640
What is the importance of eigenvalues/eigenvectors?
34576
Some questions about Hilbert matrix
75104
Existence of some type matrix
21065
Bordered Hessian matrix to find a minimum of the function