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Hutchinson operator : ウィキペディア英語版 | Hutchinson operator In mathematics, in the study of fractals, a Hutchinson operator is the collective action of a set of contractions, called an iterated function system. The iteration of the operator converges to a unique attractor, which is the often self-similar fixed set of the operator. ==Definition== Let be an iterated function system, or a set of contractions from a compact set to itself. The operator is defined over subsets as : A key question is to describe the attractors of this operator, which are compact sets. One way of generating such a set is to start with an initial compact set (which can be a single point, called a seed) and iterate as follows : and taking the limit, the iteration converges to the attractor :
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