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JOURNALS // Doklady Rossijskoj Akademii Nauk. Mathematika, Informatika, Processy Upravlenia // Archive

Dokl. RAN. Math. Inf. Proc. Upr., 2022 Volume 503, Pages 11–15 (Mi danma240)

MATHEMATICS

Taylor-type formulas for arbitrary continuous functions on intervals and their application in control problems for distributed systems

A. N. Agadzhanov

Trapeznikov Institute of Control Sciences, Russian Academy of Sciences, Moscow, Russia

Abstract: Two classes of Taylor-type formulas for arbitrary continuous functions on intervals are obtained using Bernstein polynomials. These formulas are applicable to both smooth functions and functions that have neither finite nor infinite derivatives at any point. The Taylor-type formulas are considered in close connection with Dini derivatives, which exist for any continuous function. An example is given in which these formulas are applied to the problem of controlling a distributed oscillatory system whose dynamics obeys the d’Alembert representation.

Keywords: Taylor's formula, Bernstein polynomials, fractal functions, Dini derivatives, Caputo fractional derivatives, distributed systems.

UDC: 517.26+517.28

Presented: S. N. Vassilyev
Received: 06.10.2021
Revised: 27.02.2022
Accepted: 28.02.2022

DOI: 10.31857/S2686954322020023


 English version:
Doklady Mathematics, 2022, 105:2, 56–60

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© Steklov Math. Inst. of RAS, 2026