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JOURNALS // Sibirskii Matematicheskii Zhurnal // Archive

Sibirsk. Mat. Zh., 2003 Volume 44, Number 2, Pages 402–414 (Mi smj1184)

This article is cited in 4 papers

The remainder term of the Taylor expansion for a holomorphic function is representable in Lagrange form

E. I. Radzievskayaa, G. V. Radzievskiib

a National University of Food Technologies
b Institute of Mathematics, Ukrainian National Academy of Sciences

Abstract: We show that the remainder of the Taylor expansion for a holomorphic function can be written down in Lagrange form, provided that the argument of the function is sufficiently close to the interpolation point. Moreover, the value of the derivative in the remainder can be taken in the intersection of the disk whose diameter joins the interpolation point and the argument of the function and an arbitrary small angle whose bisectrix is the ray from the interpolation point through the argument of the function.

Keywords: holomorphic function, Taylor expansion, remainder, mean value theorem.

UDC: 517.547.3, 519.652

Received: 28.04.2002


 English version:
Siberian Mathematical Journal, 2003, 44:2, 322–331

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