Download Abstract Compositional Analysis of Iterated Relations: A by Frederic Geurts PDF

By Frederic Geurts

This self-contained monograph is an built-in examine of favourite platforms outlined through iterated kin utilizing the 2 paradigms of abstraction and composition. This incorporates the complexity of a few state-transition structures and improves knowing of complicated or chaotic phenomena rising in a few dynamical structures. the most insights and result of this paintings problem a structural type of complexity acquired through composition of easy interacting structures representing adversarial attracting behaviors. This complexity is expressed within the evolution of composed structures (their dynamics) and within the family among their preliminary and ultimate states (the computation they realize). The theoretical effects are confirmed via interpreting dynamical and computational houses of low-dimensional prototypes of chaotic structures, high-dimensional spatiotemporally complicated structures, and formal platforms.

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Additional resources for Abstract Compositional Analysis of Iterated Relations: A Structural Approach to Complex State Transition Systems

Example text

The expression i∈I ni is used to denote the upper bound of the ordinals family {ni | i ∈ I}. A limit ordinal n is such that k

The set of nonempty compact subsets of X, instead of P(X). Moreover, whereas in a power set P(X) the bottom element is the emptyset, it is not the case in K (X). – The theorem still holds when and-continuity is replaced by and-continuity*, L is equal to P(X) or to K (X), and X is a compact metric space. In case of RDS, all these assumptions are verified (see Def. 42 and Prop. 43). 5 Elementary Properties The following propositions will be used later. 48. If a relation f is injective, we have ∀u = v, ∀A, B ⊆ X, f (u) ∩ f (v) = f (A ∩ B) = ∅ f (A) ∩ f (B).

55 (Diameter). Let (X, d) be a metric space. Then, for any subset A ⊆ X, its diameter is diam(A) = sup d(x, y). x,y∈A In general, we use a RDS, which involves a compact metric space (X, d), where d is the metric defined on X. Relations are regarded as multi-valued functions from X to P(X). This requires a metric on P(X). We consider the standard Hausdorff metric. 56 (Hausdorff metric). Let (X, d) be a metric space. The Hausdorff metric h on P(X) is given as follows: ∀A, B ∈ P(X), h(A, B) = max{h (A, B), h (B, A)} where h (A, B) = sup h (x, B) x∈A h (x, B) = inf d(x, y).

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