Results 91 to 100 of about 360,754 (261)

Some estimations on continuous random variables for (k, s) −fractional integral operators

open access: yesMoroccan Journal of Pure and Applied Analysis, 2020
In this work, we establish some new (k, s) −fractional integral inequalities of continuous random variables by using the (k, s) −Riemann-Liouville fractional integral operator.
Houas Mohamed
doaj   +1 more source

Riemann integrability versus weak continuity [PDF]

open access: yesarXiv, 2015
In this paper we focus on the relation between Riemann integrability and weak continuity. A Banach space $X$ is said to have the weak Lebesgue property if every Riemann integrable function from $[0,1]$ into $X$ is weakly continuous almost everywhere.
arxiv  

Lp-error Bounds Of Two And Three-point Quadrature Rules For Riemann-stieltjes Integrals [PDF]

open access: yes, 2018
In this work, Lp-error estimates of general two and three point quadrature rules for Riemann-Stieltjes integrals are give n.
arxiv   +1 more source

A Generalization of the Riemann-Lebesgue Theorem for Riemann Integrability

open access: yesReal Analysis Exchange, 2020
A classical theorem of Riemann and Lebesgue says that a bounded function defined on a compact interval is Riemann integrable if and only if it is continuous almost everywhere. In this note, we generalize their result and show that the difference between the upper and lower Riemann integrals of a not necessarily Riemann integrable function equals the ...
openaire   +3 more sources

Enhance decoding of lower limb motor imagery‐electroencephalography patterns by Riemannian clustering

open access: yesInterdisciplinary Medicine, EarlyView.
Abstract Brain‐Computer Interface (BCI) based on motor imagery (MI) has attracted great interest as a new rehabilitation method for stroke. Riemannian geometry‐based classification algorithms are widely used in MI‐BCI due to their strong robustness and generalization capabilities.
Xinwei Sun   +8 more
wiley   +1 more source

Extension and Application of Deleting Items and Disturbing Mesh Theorem of Riemann Integral [PDF]

open access: yesarXiv, 2018
The deleting items and disturbing mesh theorems of Riemann Integral are extended to multiple integral,line integral and surface integral respectively by constructing various of incomplete Riemann sum and non-Riemann sum sequences which converge to the same limit of classical Riemann sum.
arxiv  

Disaster avoided: current state of the Baltic Sea without human intervention to reduce nutrient loads

open access: yesLimnology and Oceanography Letters, EarlyView.
Abstract Excessive nutrient inputs have caused eutrophication of coastal ecosystems worldwide, triggering extensive algal blooms, oxygen‐depletion, and collapse of local fisheries. In the Baltic Sea, inputs of nitrogen (N) and phosphorus (P) have been significantly reduced since the 1980s, but the environmental state shows little to no signs of ...
Eva Ehrnsten   +3 more
wiley   +1 more source

On spectral question of the Cauchy-Riemann operator with homogeneous boundary value conditions

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
In this paper we consider the eigenvalue problem for the Cauchy - Riemann operator with homogeneous Dirichlet type boundary conditions. The statement of the problem is justified to the theorem of M. Otelbaev and A.N.
N.S. Imanbaev, B.E. Kanguzhin
doaj   +1 more source

Aquatic heatwaves increase surface chlorophyll concentrations in experimental and reference lakes

open access: yesLimnology and Oceanography Letters, EarlyView.
Abstract Aquatic heatwaves are increasing in frequency, intensity, and duration worldwide. While increases in mean water temperatures are linked to enhanced phytoplankton biomass, it is unclear how heatwaves alter phytoplankton dynamics in lakes at an ecosystem scale.
Daniel K. Szydlowski   +3 more
wiley   +1 more source

Fractional Calculus for Non-Discrete Signed Measures

open access: yesMathematics
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
Vassili N. Kolokoltsov   +1 more
doaj   +1 more source

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