RUS  ENG
Full version
JOURNALS // Vestnik Udmurtskogo Universiteta. Matematika. Mekhanika. Komp'yuternye Nauki // Archive

Vestn. Udmurtsk. Univ. Mat. Mekh. Komp. Nauki, 2023 Volume 33, Issue 4, Pages 571–580 (Mi vuu869)

MATHEMATICS

On the general form of a linear continuous functional in the space of regulated functions

V. Ya. Derr

Udmurt State University, ul. Universitetskaya, 1, Izhevsk, 426034, Russia.

Abstract: The author's research continues on the theory of regulated functions (functions having finite one-sided limits at each point) and $\sigma$-continuous functions (bounded functions having no more than a countable set of discontinuity points), as well as on the theory of the *-integral. The representability of a regulated function in the form of a sum of a right-continuous function and a left-continuous function is proved ($rl$-representability of the proper function). It is shown that the general form of a linear continuous functional in the space of regulated functions ($\sigma$-continuous functions) is the *-integral of a regulated ($\sigma$-continuous) function over a function of bounded variation.

Keywords: regulated functions, $\sigma$-continuous functions, $rl$-representation, *-integral, linear continuous functional

UDC: 517.518.126, 517.911

MSC: 26B30, 26A42, 46A20

Received: 15.09.2023
Accepted: 13.12.2023

DOI: 10.35634/vm230403



Bibliographic databases:


© Steklov Math. Inst. of RAS, 2026