Results 111 to 120 of about 1,730 (224)

Quadrature formulas for calculating the hadamard integral of a special form

, 2020
© 2016, International Journal of Pharmacy and Technology. All rights reserved.Currently, the issues related to finding solutions to some economic problems, such as problems pertaining to the queuing systems are of great interest. These problems, in turn,
Galimyanov A., Gorskay T., Vorontsova V., Gilemzyanov A.   +3 more
core  

A priori error estimates for finite element methods with numerical quadrature for nonmonotone nonlinear elliptic problems [PDF]

, 2018
The effect of numerical quadrature in finite element methods for solving quasilinear elliptic problems of nonmonotone type is studied. Under similar assumption on the quadrature formula as for linear problems, optimal error estimates in the L 2 and the H
Vilmart, Gilles, Abdulle, Assyr
core  

On the best interval quadrature formulae for classes of differentiable periodic functions

, 2007
In this paper we solve the problem about optimal interval quadrature formula for the class WrF of differentiable periodic functions with rearrangement invariant set F of their derivatives of order r.
Skorokhodov, D.S., Babenko, V.F.
core   +1 more source

Atmospheric Gaseous Radiation, Part I: Gaseous Absorption and Rayleigh Scattering in UV‐Visible Region, and UV Index Prediction

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 6, June 2026.
Abstract The ultraviolet (UV) and visible spectral regions account for about half of the solar incoming energy, making the accurate treatment of ozone, oxygen and water vapor and Rayleigh scattering in this region crucial for understanding solar radiation modulation through absorption and scattering.
Jiangnan Li, Robin J. Hogan
wiley   +1 more source

Hierarchical QAM and Inter-Layer FEC for Multi-View Video Plus Depth Format in Two-Way Relay Channels

Applied Sciences
This paper presents an enhanced method for the transmission of 3D video in the Multi-view Video plus Depth (MVD) format over Two-Way Relay Channels (TWRC).
Dongho You, Sung-Hoon Kim, Dong Ho Kim
doaj   +1 more source

Optimal Quadrature Formulas with Derivative in the Space : Optimal Quadrature Formulas with Derivative in the Space

. This paper studies the problem of construction of optimal quadrature formulas in the sense of Sard in the space . In this paper the quadrature sum consists of values of the integrand and its first derivative at nodes.
Kuziev, Sh.S, Nuraliev, F.A.
core  

A Unified Vector Electromagnetic Framework for Ionospheric Scintillation and Polarization Effects in GNSS

Radio Science, Volume 61, Issue 6, June 2026.
Abstract The ionosphere imposes coupled amplitude, phase, and polarization distortions on trans‐ionospheric Global Navigation Satellite System (GNSS) signals, reflecting the structure and dynamics of electron‐density irregularities. Classical weak‐scatter theory provides a mature framework for interpreting amplitude and phase scintillation, but these ...
T. Durgonics, S. S. Beeck
wiley   +1 more source

Decay analysis of bivariate Chebyshev coefficients for functions with limited regularity

Results in Applied Mathematics
The Chebyshev polynomial approximation is a useful tool to approximate smooth and non-smooth functions. In fact, for a sufficiently smooth function, the partial sum of Chebyshev series expansion provides optimal polynomial approximation.
Akansha
doaj   +1 more source

Optimal Quadrature Formulae [PDF]

The Computer Journal, 1967
openaire   +2 more sources

A note on the degree of approximation with an optimal, discrete polynomial

, 1980
A saturation theorem and an asymptotic theorem are proved for an optimal, discrete, positive algebraic polynomial operator.
Swetits, J.J., Swetits, J. J., Wood, B.
core   +1 more source