Greedy algorithms in muldimensional Banach spaces / Ագահ ալգորիթմներ բազմաչափ բանախյան տարածություններում

Abstract

In a Banach space with Schauder basis it is natural to approximate a function by the terms of its series expansion. For example, we can approximate a function by partial sums of its series. In early studies, some linear approximations were obtained