The combination technique and some generalisations
The combination technique has repeatedly been shown to be an effective tool for the approximation with sparse grid spaces. Little is known about the reasons of this effectiveness and in some cases the combination technique can even break down. It is known, however, that the combination technique produces an exact result in the case of a projection into a sparse grid space if the involved partial projections commute. The performance of the combination technique is analysed using a projection...[Show more]
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|Source:||Linear Algebra and its Applications|
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