Abstract
By employing Riesz decomposition theorem about monotone functions, we prove a Flett type theorem for the Riemann–Stieltjes integral and related integral mean value results. Then, since monotone functions are inner functions for gauge integrable functions, we revisit classical mean value integral theorems in terms of the gauge integral.
Similar content being viewed by others
Data availability
The paper has no associated data.
References
Bartle, R.G.: A Modern Theory of Integration. Graduate Studies in Mathematics, vol. 32. American Mathematical Society, Providence (2001)
Bonnet, P.O.: Remarques sur quelques intégrales définies. J. Math. Pures Appl. 14, 249–256 (1849)
Demailly, J.-P.: Théorie élémentaire de l’intégration: l’intégrale de Kurzweil–Henstock. http://www-fourier.ujf-grenoble.fr/demailly/books.html (2011)
Mercer, A. McD.: A new mean value theorem for integrals. Math. Gazette 97, 510–512 (2013)
Kurz, D., Swartz, Ch.: Theories of Integration. The Integrals of Riemann, Lebesgue, Henstock-Kurzweil, and Mcshane. Series in Real Analysis, vol. 9. World Scientific (2004)
Riesz, F., Sz.-Nagy, B.: Functional Analysis. Dover Publication, New York (1990)
Rutherfoord, V., Sagher, Y.: Negligible variation and the change of variables theorem. Indiana Univ. Math. J. 61, 31–44 (2012)
Wayment, S.G.: An integral mean value theorem. Math. Gazette 54, 300–301 (1970)
Funding
The author declares that no funds, grants, or other spport were received during the preparation of the manuscript.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The author declares no potential conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Vîjîitu, V. A Flett Theorem for the Riemann–Stieltjes Integral. Results Math 79, 34 (2024). https://doi.org/10.1007/s00025-023-02062-7
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s00025-023-02062-7
Keywords
- Riesz decomposition
- Flett integral theorem
- Riemann–Stieltjes integral
- Jump function
- Gauge integral
- mean value theorem