A. Asgarova

most citedA Chebyshev type alternation theorem for best approximation by a sum of two algebras

1 citations · 1 across the 2 of their papers we have counts for

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2 papers

math.FA2024

A note on the approximation by a sum of two algebras

Aida Asgarova, Vugar Ismailov

We consider the problem of approximation of a continuous function $f$ defined on a compact metric space $X$ by elements from a sum of two algebras. We prove a de la Vallée Poussin…

math.FA2022★ 1 cited

A Chebyshev type alternation theorem for best approximation by a sum of two algebras

Aida Asgarova, Ali Huseynli, Vugar Ismailov

Let $X$ be a compact metric space, $C (X)$ be the space of continuous real-valued functions on $X$ , and $A_{1}$ , $A_{2}$ be two closed subalgebras of $C (X)$ containing constant function…