Title: On completely positive matrices
Title: Removing critical eigenvalues of Hermitian matrix pencils and Hamiltonian matrices with minimal perturbations
Title: The 2-Steiner distance matrix of a tree
Title: Inequalities for different means of positive definite matrices
Title: Simultaneous triangularization over max-algebras
Title: Positivity of GCD tensors and their determinants
Title: The four-vector theorem for inverse tridiagonal matrices and a generalization