Results 1 to 10 of about 61,523 (203)

Integral Representation of Functions of Bounded Variation [PDF]

open access: yesJournal of Mathematics, 2019
Functions of bounded variations form important transition between absolute continuous and singular functions. With Bainov’s introduction of impulsive differential equations having solutions of bounded variation, this class of functions had eventually ...
Z. Lipcsey   +3 more
doaj   +4 more sources

On functions of bounded variation [PDF]

open access: yesMathematical Proceedings of the Cambridge Philosophical Society, 2016
AbstractThe recently introduced concept of ${\mathcal D}$-variation unifies previous concepts of variation of multivariate functions. In this paper, we give an affirmative answer to the open question from [20] whether every function of bounded Hardy–Krause variation is Borel measurable and has bounded ${\mathcal D}$-variation.
Aistleitner, Christoph   +3 more
openaire   +5 more sources

On separation by function of bounded variation

open access: yesPeriodica Mathematica Hungarica, 2023
AbstractIn the present paper we are concerned with the problem of separation of two given functions by an increasing (decreasing) function or by a function of bounded variation. In the context of separation by a function of bounded variation we give two approaches.
Andrzej Olbryś
exaly   +2 more sources

On the trace operator for functions of bounded 𝔸-variation [PDF]

open access: yesAnalysis & PDE, 2020
We consider the space BVA(Omega) of functions of bounded A-variation. For a given first-order linear homogeneous differential operator with constant coefficients A, this is the space of L-1-functions u : Omega -> R-N such that the distributional differential expression Au is a finite (vectorial) Radon measure.
Breit, Dominic   +2 more
openaire   +4 more sources

On functions of bounded p-variation

open access: yesJournal of Mathematical Analysis and Applications, 2009
The authors obtain estimates of the total \(p\)-variation ...
Martin Lind
exaly   +3 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 the order of magnitude of Walsh-Fourier transform [PDF]

open access: yesMathematica Bohemica, 2020
For a Lebesgue integrable complex-valued function $f$ defined on $\mathbb R^+:=[0,\infty)$ let $\hat f$ be its Walsh-Fourier transform. The Riemann-Lebesgue lemma says that $\hat f(y)\to0$ as $y\to\infty$.
Bhikha Lila Ghodadra, Vanda Fülöp
doaj   +1 more source

On the approximation of bounded functions by trigonometric polynomials in Hausdorff metric [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2023
The article discusses a method for constructing a spline function to obtain estimates that are exact in order to approximate bounded functions by trigonometric polynomials in the Hausdorff metric.
Sadekova, Ekaterina H.
doaj   +1 more source

Grüss-Type Inequalities for Vector-Valued Functions

open access: yesMathematics, 2022
Grüss-type inequalities have been widely studied and applied in different contexts. In this work, we provide and prove vectorial versions of Grüss-type inequalities involving vector-valued functions defined on Rn for inner- and cross-products.
Mohammad W. Alomari   +2 more
doaj   +1 more source

On new Milne-type inequalities for fractional integrals

open access: yesJournal of Inequalities and Applications, 2023
In this study, fractional versions of Milne-type inequalities are investigated for differentiable convex functions. We present Milne-type inequalities for bounded functions, Lipschitz functions, functions of bounded variation, etc., found in the ...
Hüseyin Budak   +2 more
doaj   +1 more source

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