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A Generalization of the Riemann Integral [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1952
By considering certain kinds of sets as exceptional in the definition of the Riemann integral, a variety of possible generalizations of the integral concept for bounded functions is obtained, one of which is the Lebesgue integral. Such an extension has been discussed by E. H.
Casper Goffman
openaire   +2 more sources

Pattern Integration with Improper Riemann Integrals [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1951
2. The improper integral defined as the limit of a sum. We first consider the case where ak = 1 (k =1, 2, 3, * * * ). A fundamental difficulty not encountered in the previous paper is apparent from the definition of .fof(x)dx. Bromwich and Hardy have considered this problem [2]. As they point out, the ordinary definition of this improper integral is by
R. E. Carr
openaire   +3 more sources

The Lebesgue integral as a Riemann integral [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
The object of this paper is to develop a very direct theory of the Lebesgue integral that is easily accessible to any audience familiar with the Riemann integral.
Enrique A. Gonzalez-Velasco
doaj   +3 more sources

ON THE POSITIVITY OF RIEMANN–STIELTJES INTEGRALS [PDF]

open access: bronzeBulletin of the Australian Mathematical Society, 2012
AbstractWe study the question whether a Riemann–Stieltjes integral of a positive continuous function with respect to a nonnegative function of bounded variation is positive.
Lukkarinen, Jani, Pakkanen, Mikko S.
openaire   +7 more sources

Existence and computation of Riemann-Stieltjes integrals through Riemann integrals

open access: green, 2011
We study the existence of Riemann-Stieltjes integrals of bounded functions against a given integrator. We are also concerned with the possibility of computing the resulting integrals by means of related Riemann integrals. In particular, we present a new generalization to the well-known formula for continuous integrands and continuously differentiable ...
Rodrigo López Pouso
openaire   +4 more sources

On the Riemann-Stieltjes Integral [PDF]

open access: yesMathematics Interdisciplinary Research, 2022
This study contributes to the theory of Riemann-Stieltjes integral. We prove that if all continuous piecewise linear functions are Riemann-Stieltjes integrable with respect to a bounded integrator α : [a,b] → R, then α must be of bounded variation on [a ...
Ali Parsian
doaj   +1 more source

On interval-valued $\mathbb{K}$-Riemann integral and Hermite-Hadamard type inequalities

open access: yesAIMS Mathematics, 2021
We introduce the concepts of $\mathbb{K}$-Riemann integral and radial $\mathbb{K}$-g$H$-derivative for interval-valued functions. We also give some important properties of interval-valued $\mathbb{K}$-Riemann integral, and extend interval-valued Hermite ...
Zehao Sha   +3 more
doaj   +1 more source

New Hermite-Hadamard inequalities in fuzzy-interval fractional calculus via exponentially convex fuzzy interval-valued function

open access: yesAIMS Mathematics, 2021
In the present note, we develop Hermite-Hadamard type inequality and He's inequality for exponential type convex fuzzy interval-valued functions via fuzzy Riemann-Liouville fractional integral and fuzzy He's fractional integral.
Yanping Yang   +3 more
doaj   +1 more source

Riemann integral and its relation with Lebesgue integral

open access: yesBibechana, 2010
This review explains the limitations of the Riemann integral and focuses on the more general concept. It has been suggested that a better route is to abandon the Riemann integral for Lebesgue integral and explained the importance of Lebesgue integral in ...
Mani Raj Bhattrai
doaj   +3 more sources

A Comprehensive Review on the Fejér-Type Inequality Pertaining to Fractional Integral Operators

open access: yesAxioms, 2023
A review of the results on the fractional Fejér-type inequalities, associated with different families of convexities and different kinds of fractional integrals, is presented.
Muhammad Tariq   +2 more
doaj   +1 more source

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