On norm sub-additivity and super-additivity inequalities for concave and convex functions
On norm sub-additivity and super-additivity inequalities for concave and convex functions
Abstract Sub-additive and super-additive inequalities for concave and convex functions have been generalized to the case of matrices by several authors over a period of time. These lead to some interesting inequalities for matrices, which in some cases coincide with, and in other cases are at variance with the corresponding …