A-priori estimates of the hp-adaptive BEM in elastic scattering of acoustic waves
Computer Assisted Methods in Engineering and Science, 2023 In the paper some a-priori hp-adaptive error estimates, applied to the problem of acoustic wave scattering on an elastic body in the 2D space, solved by the Boundary Element Method, are presented.
Andrzej Karafiat
doaj
Afternote to “Coupling at a Distance”: Convergence Analysis and A Priori Error Estimates
Computational Methods in Applied Mathematics, 2022 Abstract In their article “Coupling at a distance HDG and BEM”, Cockburn, Sayas and Solano proposed an iterative coupling of the hybridizable discontinuous Galerkin method (HDG) and the boundary element method (BEM) to solve an exterior Dirichlet problem.
Nestor Sánchez +2 more
openaire +3 more sources
Estimating the Position of an Image with Unknown Intensity Shape
Communications, 2021 The problem considered is to estimate the image position of a spatially extended object. It is assumed that the shape of the image intensity is a priori unknown, but it can be predicted with some error.
Yury E. Korchagin +3 more
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An approximation scheme for an Eikonal Equation with discontinuous coefficient [PDF]
, 2013 We consider the stationary Hamilton-Jacobi equation where the dynamics can vanish at some points, the cost function is strictly positive and is allowed to be discontinuous. More precisely, we consider special class of discontinuities for which the notion
Adriano Festa +4 more
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A Novel Approach to Speech Enhancement Based on Deep Neural Networks
Advances in Electrical and Computer Engineering, 2022 Minimum mean-square error (MMSE) approaches have been shown to achieve state-of-the-art performance on the task of speech enhancement. However, MMSE approaches lack the ability to accurately estimate non-stationary noise sources.
SALEHI, M., MIRZAKUCHAKI, S.
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Identifying the Unknown Source in Linear Parabolic Equation by a Convoluting Equation Method
Mathematics, 2022 This article is devoted to identifying a space-dependent source term in linear parabolic equations. Such a problem is ill posed, i.e., a small perturbation in the input data may cause a dramatically large error in the solution (if it exists).
Zhenping Li +2 more
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A priori error for unilateral contact problems with Lagrange multiplier and IsoGeometric Analysis [PDF]
, 2018 In this paper, we consider unilateral contact problem without friction between a rigid body and deformable one in the framework of isogeometric analysis.
Antolin, Pablo +2 more
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Spectral discretization of the time-dependent Navier-Stokes problem with mixed boundary conditions
Advances in Nonlinear Analysis, 2022 In this work, we handle a time-dependent Navier-Stokes problem in dimension three with a mixed boundary conditions. The variational formulation is written considering three independent unknowns: vorticity, velocity, and pressure.
Abdelwahed Mohamed, Chorfi Nejmeddine
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Comparative analysis of methods for calculating the mode of a stationary random process [PDF]
E3S Web of Conferences, 2021 The paper considers methods for calculating the mode of a stationary random process when solving the problem of processing measurement results under conditions of a priori uncertainty.
Marchuk Vladimir +3 more
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A Continuation Multilevel Monte Carlo algorithm [PDF]
, 2014 We propose a novel Continuation Multi Level Monte Carlo (CMLMC) algorithm for weak approximation of stochastic models. The CMLMC algorithm solves the given approximation problem for a sequence of decreasing tolerances, ending when the required error ...
Collier, Nathan +4 more
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