Mathematics (Sep 2024)

Fractional Calculus for Non-Discrete Signed Measures

  • Vassili N. Kolokoltsov,
  • Elina L. Shishkina

DOI
https://doi.org/10.3390/math12182804
Journal volume & issue
Vol. 12, no. 18
p. 2804

Abstract

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In this paper, we suggest a first-ever construction of fractional integral and differential operators based on signed measures including a vector-valued case. The study focuses on constructing the fractional power of the Riemann–Stieltjes integral with a signed measure, using semigroup theory. The main result is a theorem that provides the exact form of a semigroup for the Riemann–Stieltjes integral with a measure having a countable number of extrema. This article provides examples of semigroups based on integral operators with signed measures and discusses the fractional powers of differential operators with partial derivatives.

Keywords