Use of this positive semi-definite matrix in optimization?
87318
Why are symmetric positive definite (SPD) matrices so important?
86623
Why is $B^TB+\lambda\Omega$ positive definite?
144357
Choose $\rho$ such that $\rho$-norm minimizes the matrix condition number
24459
Why does correlation matrix need to be positive semi-definite and what does it mean to be or not to be positive semi-definite?
69349
If $A$ is positive definite, then $\int_{\mathbb{R}^n}\mathrm{e}^{-\langle Ax,x\rangle}\text{d}x=\left|\det\left({\pi}^{-1}A\right)\right|^{-1/2}$
138457
Seminorms: Absolute Convexity
15969
How to prove that $A$ is positive semi-definite if all principal minors are non-negative?
21065
Bordered Hessian matrix to find a minimum of the function
143793
If $A$ is symmetric, then the matrix exponential $e^{A}$ is positive definite
88746
Positive definiteness of the matrix $A+B$
67686
Square root of Positive Definite Matrix
140910
Solving minimization problem $L_2$ IRLS (Iteration derivation)
97040
Question about an application of the Rank-Nullity theorem
51834
Positivity of a determinant
92763
Optimising $x_1x_2+x_2x_3+\cdots+x_nx_1$ given certain constraints
12394
Overlapping positive definite block matrices
132978
Matrix Calculus in Least-Square method