Special issue on interpolation, inequalities, invariants, operators, and related topics. Preface; 1–2

Neoclassical invariant theory – some lost theorems – a mathematical chat; pp. 3–6

Some new scales of characterization of Hardy’s inequality; pp. 7–18

Complex interpolation of compact operators mapping into lattice couples; pp. 19–28

The Besicovitch covering theorem and near-minimizers for the couple (L², BV); pp. 29–33

Simplified a priori estimate for the time periodic Burgers’ equation; pp. 34–41

Application of operator monotone functions in economics; pp. 42–47

Operator convex functions over C *-algebras; pp. 48–52

Some modern developments in the theory of real division algebras; pp. 53–59