Results 31 to 40 of about 2,360,976 (284)

Interpolation of the Function of Two Variables with Large Gradients in the Boundary Layers [PDF]

Учёные записки Казанского университета: Серия Физико-математические науки, 2015
The problem of interpolation for the function of two variables with large gradients in the boundary layers is investigated. It is suggested that the function can be represented as a sum of a regular component with bounded derivatives up to some order and
A.I. Zadorin
doaj  

A Non-Standard Finite Difference Scheme for Magneto-Hydro Dynamics Boundary Layer Flows of an Incompressible Fluid Past a Flat Plate

Mathematical and Computational Applications, 2021
This paper deals with a non-standard implicit finite difference scheme that is defined on a quasi-uniform mesh for approximate solutions of the Magneto-Hydro Dynamics (MHD) boundary layer flow of an incompressible fluid past a flat plate for a wide range
Riccardo Fazio, Alessandra Jannelli
doaj   +1 more source

On Asymptotic Global Error Estimation and Control of Finite Difference Solutions for Semilinear Parabolic Equations

, 2014
The aim of this paper is to extend the global error estimation and control addressed in Lang and Verwer [SIAM J. Sci. Comput. 29, 2007] for initial value problems to finite difference solutions of semilinear parabolic partial differential equations.
Berzins, Jens Lang, Kristian Debrabant, Lang, Lang, Lang, Larsson, Lawson, Nowak, Schmich, Schönauer, Shampine, Skeel, Thomas, Wouver, Wouver   +15 more
core   +1 more source

Conformal symplectic and constraint-preserving model order reduction of constrained conformal Hamiltonian systems

Applied Mathematics in Science and Engineering
Dissipative and constrained dynamical systems model various physical phenomena comprising damping and constraining forces. These forces give rise to specific geometric properties of the dynamical system's governing equations. In this paper, we reduce and
Vidushi Sachan, Ashish Bhatt
doaj   +1 more source

Assembly Error Tolerance Estimation for Large-Scale Hydrostatic Bearing Segmented Sliders under Static and Low-Speed Conditions

Machines, 2023
Hydrostatic bearings come with certain advantages over rolling bearings in moving large-scale structures. However, assembly errors are a serious matter on large scales.
Michal Michalec, Jan Foltýn, Tomáš Dryml, Lukáš Snopek, Dominik Javorský, Martin Čupr, Petr Svoboda   +6 more
doaj   +1 more source

Optimal, reliable estimation of quantum states [PDF]

, 2006
Accurately inferring the state of a quantum device from the results of measurements is a crucial task in building quantum information processing hardware.
Aliferis P, Altepeter J B, Blume-Kohout R Hayden P, Carlin B P, Derka R, Gross D Liu Y-K Flammia S T Becker S Eisert J, Helstrom C W, Hradil Z, Häffner H, Robin Blume-Kohout, Zyczkowski K   +10 more
core   +2 more sources

An Algorithm Based on Compute Unified Device Architecture for Estimating Covering Functionals of Convex Bodies

Axioms
In Chuanming Zong’s program to attack Hadwiger’s covering conjecture, which is a longstanding open problem from Convex and Discrete Geometry, it is essential to estimate covering functionals of convex bodies effectively. Recently, He et al. and Yu et al.
Xiangyang Han, Senlin Wu, Longzhen Zhang
doaj   +1 more source

An operational collocation based on the Bell polynomials for solving high order Volterra integro-differential equations [PDF]

Journal of Mahani Mathematical Research
In this paper, an operational matrix method based on the Bell polynomials  has been presented to find approximate solutions of high-order Volterra integro-differential equations.
Najmeh Kasaei, Esmail Hesameddini, Mohammad Nabati   +2 more
doaj   +1 more source

An Enhanced LMMSE Channel Estimation under High Speed Railway Scenarios

, 2017
With the rapid deployment of the high speed railway (HSR), the wireless communication in HSR has been one of the indispensable scenarios in the fifth generation (5G) communications. In order to improve the performance of the orthogonal frequency division
Li, Yuli, Long, Hang, Tang, Qing, Yang, Haojun   +3 more
core   +1 more source

The estimation of truncation error by τ-estimation revisited [PDF]

Journal of Computational Physics, 2012
The aim of this paper was to accurately estimate the local truncation error of partial differential equations, that are numerically solved using a finite difference or finite volume approach on structured and unstructured meshes. In this work, we approximated the local truncation error using the @t-estimation procedure, which aims to compare the ...
Fraysse, François, Vicente Buendia, Javier de, Valero Sánchez, Eusebio   +2 more
openaire   +3 more sources