Improvement of Incomplete Factorizations by a Sparse Secant Method.
In the present paper, the improvement of an incomplete factorization of a non-symmetric matrix A is discussed. Starting from the ideas of sparsity preserving quasi-Newton methods, an algorithm is developed which improves the approximation of A by the ...
Walter, Artur
core
Application of randomized quadrature formulas to the finite element method for elliptic equations. [PDF]
Kruse R, Polydorides N, Wu Y.
europepmc +1 more source
H 1 -conforming finite element cochain complexes and commuting quasi-interpolation operators on Cartesian meshes. [PDF]
Bonizzoni F, Kanschat G.
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Extrapolation Techniques For Constructing Higher Order Finite Element Methods
. The p-version of the finite element methods requires the exact calculation of the stiffness matrix by a special form of numerical integration. As an alternative to classical techniques that are based on Gauß quadrature, we propose to use low order ...
U. R Ude, U. Rüde
core
A parameter-free stabilized finite element method for scalar advection-diffusion problems
Bochev Pavel, Peterson Kara
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DIRECT MEDICAL IMAGE TO SIMULATION USING AUTO-SEGMENTATION AND POINT CLOUD-BASED CFD. [PDF]
Corpuz AM +5 more
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An analysis of the TDNNS method using natural norms. [PDF]
Pechstein AS, Schöberl J.
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An Adaptive Two-Level Method For The Coupling Of Nonlinear FEM-BEM Equations
. In this paper an a posteriori error estimate for nonlinear coupled FEM-BEM equations is derived by using hierarchical basis techniques. Based on the properties of two-level additive Schwarz operators for (linearized) differential equations and weakly ...
Patrick Mund +3 more
core
Serendipity discrete complexes with enhanced regularity. [PDF]
Di Pietro DA, Hanot M, Salah M, Salah M.
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An Equilibrated a Posteriori Error Estimator for Arbitrary-Order Nédélec Elements for Magnetostatic Problems. [PDF]
Gedicke J, Geevers S, Perugia I.
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