A Simple Proof of Nehari's Theorem Based on Duality
Abstract
In this technical note we provide a simple proof of Nehari's theorem on the optimal approximation by$\mathcal {H}_\infty$functions, based on convex duality.
Fields of Study & Subjects
Analytic and geometric function theory
Mathematical Inequalities and Applications
Functional Equations Stability Results
Publication details
- Journal / source
- IEEE Transactions on Automatic Control
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Volume
- 71
- Issue
- 10
- Pages
- 1–5
- Publication date
- 1 January 2026
- Language
- EN