Structured low-rank approximation (SLRA) is a mathematical framework that seeks to approximate a given data matrix by another matrix of lower rank while preserving intrinsic structural properties.

An algorithm for determining the triangular decomposition H = R * DR of a Hankel matrix H using O(n 2) operations is derived. The derivation is based on the Lanczos algorithm and the relation between ...

The study of Hilbert and Hankel operators on analytic function spaces has emerged as a vibrant research field, uniting aspects of harmonic analysis, operator theory and complex analysis. These ...

An operator theoretic approach is used to study problems of diffraction of time-harmonic electromagnetic (or acoustic) waves by right angle wedges Ωw such that one of the faces is perfectly conducting ...