Greedy Approximation with Regard to Bases and General Minimal Systems
Greedy Approximation with Regard to Bases and General Minimal Systems
This paper is a survey which also contains some new results on the nonlinear approximation with regard to a basis or, more generally, with regard to a minimal system.Approximation takes place in a Banach or in a quasi-Banach space.The last decade was very successful in studying nonlinear approximation.This was motivated …