New posts in Matrix Analysis

Can the trace of a positive matrix increase under a projection?

Spectral norm of projected matrix

Equality in trace duality

When does $\left\Vert f(\mathbf{N}) - f(\mathbf{M})\right\Vert_{\mathrm{op}} \leq k\left\Vert \mathbf{N} - \mathbf{M}\right\Vert_{\mathrm{op}}$ hold?

Properties of matrix $X=\left[\frac{1}{1-\bar\alpha_i \alpha_j}\right]_{ij}$

Reference request: continuity of Cholesky factor

Is this subset of matrices contractible inside the space of non-conformal matrices?

Representation theorem for matrices (reference request)

Commutant of the conjugations by unitary matrices

Consequences of eigenvector-eigenvalue formula found by studying neutrinos