Results 11 to 20 of about 92,391 (275)

A residual based A POSTERIORI error estimator for an augmented mixed finite element method in linear elasticity [PDF]

open access: yes, 2005
In this paper we develop a residual based a posteriori error analysis for an augmented mixed finite element method applied to the problem of linear elasticity in the plane. More precisely, we derive a reliable and efficient a posteriori error estimator
Heuer, N   +16 more
core   +7 more sources

Maximum norm a posteriori error estimate for a 2d singularly perturbed semilinear reaction-diffusion problem [PDF]

open access: yes, 2008
A singularly perturbed semilinear reaction-diffusion equation, posed in the unit square, is discretized on arbitrary nonuniform tensor-product meshes. We establish a second-order maximum norm a posteriori error estimate that holds true uniformly in the ...
Kopteva, Natalia
core   +4 more sources

Maximum norm a posteriori error estimation for parabolic problems using elliptic reconstructions [PDF]

open access: yes, 2013
A semilinear second-order parabolic equation is considered in a regular and a singularly perturbed regime. For this equation, we give computable a posteriori error estimates in the maximum norm.
Linss, Torsten, Kopteva, Natalia
core   +4 more sources

A posteriori corrections for cubic and quintic interpolating splines at equally-spaced knots [PDF]

open access: yes, 1985
The method proposed recently by Lucas [13], for the a posteriori correction of odd degree interpolating periodic splines is extended to non-periodic cubic and quintic ...
Soares, M J, Papamichael, N
core   +6 more sources

Saturation Assumption and Finite Element Method for a One-Dimensional Model [PDF]

open access: yes, 2002
In this paper we refer to the hierarchical finite element method and stabilization techniques for convection–diffusion equations. In particular, the aim is to outline an application of saturation assumption to a posteriori error estimates for such ...
De Rossi, Alessandra
core   +6 more sources

A Priori or a Posteriori? [PDF]

open access: yes, 2020
What is the significance of the distinction between the a priori and the a posteriori in metametaphysics? The primary relevance of the distinction concerns the source of metaphysical knowledge and our epistemic access to that source. For instance, how can we gain knowledge about things like numbers and sets, which are abstract objects?
openaire   +1 more source

A Posteriori Error Analysis for a New Fully Mixed Isotropic Discretization of the Stationary Stokes-Darcy Coupled Problem

open access: yesAbstract and Applied Analysis, 2020
In this paper, we develop an a posteriori error analysis for the stationary Stokes-Darcy coupled problem approximated by conforming the finite element method on isotropic meshes in ℝd, d∈2,3.
Houédanou Koffi Wilfrid   +2 more
doaj   +1 more source

Residual based a posteriori error estimation for Dirichlet boundary control problems [PDF]

open access: yesESAIM: Proceedings and Surveys, 2021
We study a residual–based a posteriori error estimate for the solution of Dirichlet boundary control problem governed by a convection diffusion equation on a two dimensional convex polygonal domain, using the local discontinuous Galerkin (LDG) method ...
Yücel Hamdullah
doaj   +1 more source

Universal a posteriori metrics game [PDF]

open access: yes2010 IEEE Information Theory Workshop, 2010
Over binary input channels, uniform distribution is a universal prior, in the sense that it allows to maximize the worst case mutual information over all binary input channels, ensuring at least 94.2% of the capacity. In this paper, we address a similar question, but with respect to a universal generalized linear decoder.
Emmanuel Abbe, Rethnakaran Pulikkoonattu
openaire   +4 more sources

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