Results 41 to 50 of about 444,655 (183)

A posteriori error control for discontinuous Galerkin methods for parabolic problems

open access: yes, 2010
We derive energy-norm a posteriori error bounds for an Euler time-stepping method combined with various spatial discontinuous Galerkin schemes for linear parabolic problems.
Emmanuil H. Georgoulis   +4 more
core   +1 more source

Space-time adaptive finite elements for nonlocal parabolic variational inequalities [PDF]

open access: yes, 2019
This article considers the error analysis of finite element discretizations and adaptive mesh refinement procedures for nonlocal dynamic contact and friction, both in the domain and on the boundary. For a large class of parabolic variational inequalities
Gimperlein, Heiko, Stocek, Jakub
core   +2 more sources

A quoi sert la modalisation a posteriori ?

open access: yesAnglophonia, 2015
This paper explores Paul Larreya’s concept of a posteriori modalisation. We first come back on Larreya’s distinction between a priori and a posteriori modalisation and suggest that his typology of the uses and functions of a posteriori modalisation ...
Grégory Furmaniak
doaj   +1 more source

MATRIX-VECTOR ALGORITHMS OF LOCAL POSTERIORI INFERENCE IN ALGEBRAIC BAYESIAN NETWORKS ON QUANTA PROPOSITIONS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
Posteriori inference is one of the three kinds of probabilistic-logic inferences in the probabilistic graphical models theory and the base for processing of knowledge patterns with probabilistic uncertainty using Bayesian networks. The paper deals with a
A. A. Zolotin   +2 more
doaj   +1 more source

An a posteriori error analysis of a mixed finite element Galerkin approximation to second order linear parabolic problems [PDF]

open access: yes, 2010
In this article, a posteriori error estimates are derived for a mixed finite element Galerkin approximation to second order linear parabolic initial and boundary value problems. Using mixed elliptic reconstruction method, a posteriori error estimates in $
Memon, S., Nataraj, N., Pani, A. K.
core  

Rigorous a-posteriori analysis using numerical eigenvalue bounds in a surface growth model

open access: yes, 2017
In order to prove numerically the global existence and uniqueness of smooth solutions of a fourth order, nonlinear PDE, we derive rigorous a-posteriori upper bounds on the supremum of the numerical range of the linearized operator. These bounds also have
Blömker, Dirk, Nolde, Christian
core   +1 more source

Reliable a-posteriori error estimators for $hp$-adaptive finite element approximations of eigenvalue/eigenvector problems [PDF]

open access: yes, 2011
We present reliable a-posteriori error estimates for $hp$-adaptive finite element approximations of eigenvalue/eigenvector problems. Starting from our earlier work on $h$ adaptive finite element approximations we show a way to obtain reliable and ...
Giani, Stefano   +2 more
core   +2 more sources

A Posteriori Probabilistic Bounds of Convex Scenario Programs with Validation Tests

open access: yes, 2020
Scenario programs have established themselves as efficient tools towards decision-making under uncertainty. To assess the quality of scenario-based solutions a posteriori, validation tests based on Bernoulli trials have been widely adopted in practice ...
Shang, Chao, You, Fengqi
core   +1 more source

A Comparative Study of the Epistemological Foundations of the Critique of Metaphysics in the Philosophical Thoughts of Kant and Carnap [PDF]

open access: yesJournal of Philosophical Investigations
Metaphysics has a long-standing history in philosophy. Although it does not date back as far as philosophy itself, it has always been a fundamental part of philosophical systems and is regarded as "first philosophy", the highest domain of rational ...
Amin Navakhti Moghaddam
doaj   +1 more source

A-posteriori existence in adaptive computations [PDF]

open access: yes, 2006
This short note demonstrates that it is not necessary to assume the existence of exact solutions in an a-posteriori error analysis. If the residual of a stable numerical solution is sufficiently small there exists a nearby exact solution for which an a ...
Ortner, Christoph
core  

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