Riesz theorem

The Riesz theorem may refer to any of several mathematical theorems due to brothers Frigyes Riesz and Marcel Riesz:


 * F. and M. Riesz theorem
 * F. Riesz's theorem – Characterizes finite-dimensional Hausdorff topological vector spaces (TVSs).
 * Riesz representation theorem
 * M. Riesz extension theorem
 * Riesz–Thorin theorem
 * Riesz–Fischer theorem
 * Riesz's lemma
 * Riesz–Markov–Kakutani representation theorem