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About: Dyadic cubes     Goto   Sponge   NotDistinct   Permalink

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Type: yago:WikicatCubesyago:Abstraction100002137yago:Attribute100024264yago:Cube113916721yago:Polyhedron113883885yago:RegularPolyhedron113915999bookyago:Shape100027807yago:Solid113860793 New Facet based on Instances of this Class

In mathematics, the dyadic cubes are a collection of cubes in Rn of different sizes or scales such that the set of cubes of each scale partition Rn and each cube in one scale may be written as a union of cubes of a smaller scale. These are frequently used in mathematics (particularly harmonic analysis) as a way of discretizing objects in order to make computations or analysis easier. For example, to study an arbitrary subset of A of Euclidean space, one may instead replace it by a union of dyadic cubes of a particular size that cover the set. One can consider this set as a pixelized version of the original set, and as smaller cubes are used one gets a clearer image of the set A. Most notable appearances of dyadic cubes include the Whitney extension theorem and the Calderón–Zygmund lemma.