Results 131 to 140 of about 1,262,805 (184)

AVERAGING OF DIFFERENCE SCHEMES

Mathematics of the USSR-Sbornik, 1987
The author considers the family of difference operators \(A_{\epsilon}u=\epsilon^{-2}(\sum_{y}p^{\epsilon}(x,y)u(y)-u(x))\) on the uniform grid of the mesh \(\epsilon\) ; x,y\(\in Q\), a bounded domain in \(R^ n\). Here \(p^{\epsilon}(x,y)=p^{\epsilon}(y,x)\geq 0\) (x\(\neq y)\); \(| p^{\epsilon}(x,x)| c,\epsilon\); \(\sum_{i}p^{\epsilon}(x,x+\epsilon ...
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Difference schemes or element schemes?

International Journal for Numerical Methods in Engineering, 1979
AbstractSeveral examples are presented to illustrate how standard finite differnce schemes for the wave eqation (e.g. Lax–Wendroff, Leafrog, etc.) can be developed from finite element analysis. The development of the diffrence schemes from the element schemes is made possible by using Galerkin's method on both the spacial and temporal dimensions.
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Difference schemes for the dispersive equation

Computing, 1983
In this paper a table of difference schemes for the dispersive equationui=auxxx is presented. A collection of criterions for deriving stability conditions of difference schemes is given and applied to these difference schemes.
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Different schemes for different teams

Computer Fraud & Security, 2009
There has been a lot of talk recently about ‘parceling’ or ‘parcel mule scams’ whose victims are ‘mules’ who pass on goods acquired with dirty money. Parceling is a variant of ‘money mule scams’, differing from them in terms of dynamics and type of ‘hook’ (job offers, dating services, or even fake charitable organisations that ask the victim to help ...
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Stable Matching of Difference Schemes

SIAM Journal on Numerical Analysis, 1972
Approximations that result from the natural matching of two stable dissipative difference schemes across a coordinate line are shown to be stable. The basic idea is to reformulate the matching scheme consistent to an equivalent initial boundary value problem and to verify the algebraic conditions for stability of such systems. An interesting comparison
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APPLICATION OF EXACT DIFFERENCE SCHEMES TO THE CONSTRUCTION AND STUDY OF DIFFERENCE SCHEMES FOR GENERALIZED SOLUTIONS

Mathematics of the USSR-Sbornik, 1983
This paper discusses the application of exact difference schemes to the construction and study of difference schemes for generalized solutions. Bibliography: 15 titles.
Lazarov, R. D.   +2 more
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Multisplitting with Different Weighting Schemes

SIAM Journal on Matrix Analysis and Applications, 1989
Iterative methods for approximating the solution of a linear algebraic system \(Ax=b\) are considered. A multisplitting of the matrix A is a sequence of splittings of the form \(A=B-C\), where B is nonsingular. When coupled with weighting diagonal matrices one can form a parallel algorithm.
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