Results 81 to 90 of about 267 (138)

Improvement of Incomplete Factorizations by a Sparse Secant Method.

open access: yes, 1990
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  

Trefftz co-chain calculus. [PDF]

open access: yesZ Angew Math Phys, 2022
Casati D   +3 more
europepmc   +1 more source

Combination of PSInSAR and GPS for stress and strain tensor estimation in Afar

open access: yesJournal of Geodetic Science
Nigussie Andnet   +2 more
doaj   +1 more source

Numerical investigation of a new class of waves in an open nonlinear heat-conducting medium

open access: yesOpen Mathematics, 2013
Dimova Milena   +2 more
doaj   +1 more source

Stability Estimates of the Mortar Finite Element Method for 3-Dimensional Problems

open access: yes, 1998
This paper is concerned with the mortar finite element method for three spatial variables. The two main issues are the proof of the LBB condition based on appropriate choices of Lagrange multipliers and optimal efficiency of corresponding multigrid ...
Dahmen, Wolfgang   +4 more
core  

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