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Book
Computability of Julia Sets
Authors: ---
ISBN: 3642088066 3540685464 9786612006395 1282006398 3540685472 Year: 2009 Publisher: Berlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer,

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Abstract

Among all computer-generated mathematical images, Julia sets of rational maps occupy one of the most prominent positions. Their beauty and complexity can be fascinating. They also hold a deep mathematical content. Computational hardness of Julia sets is the main subject of this book. By definition, a computable set in the plane can be visualized on a computer screen with an arbitrarily high magnification. There are countless programs to draw Julia sets. Yet, as the authors have discovered, it is possible to constructively produce examples of quadratic polynomials, whose Julia sets are not computable. This result is striking - it says that while a dynamical system can be described numerically with an arbitrary precision, the picture of the dynamics cannot be visualized. The book summarizes the present knowledge about the computational properties of Julia sets in a self-contained way. It is accessible to experts and students with interest in theoretical computer science or dynamical systems.


Book
Fixed Point of the Parabolic Renormalization Operator
Authors: ---
ISBN: 3319117076 3319117068 Year: 2014 Publisher: Cham : Springer International Publishing : Imprint: Springer,

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This monograph grew out of the authors' efforts to provide a natural geometric description for the class of maps invariant under parabolic renormalization and for the Inou-Shishikura fixed point itself as well as to carry out a computer-assisted study of the parabolic renormalization operator. It introduces a renormalization-invariant class of analytic maps with a maximal domain of analyticity and rigid covering properties and presents a numerical scheme for computing parabolic renormalization of a germ, which is used to compute the Inou-Shishikura renormalization fixed point.   Inside, readers will find a detailed introduction into the theory of parabolic bifurcation,  Fatou coordinates, Écalle-Voronin conjugacy invariants of parabolic germs, and the definition and basic properties of parabolic renormalization.   The systematic view of parabolic renormalization developed in the book and the numerical approach to its study will be interesting to both experts in the field as well as graduate students wishing to explore one of the frontiers of modern complex dynamics.


Book
Computability of Julia Sets
Authors: --- ---
ISBN: 9783540685470 Year: 2009 Publisher: Berlin Heidelberg Springer Berlin Heidelberg

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Abstract

Among all computer-generated mathematical images, Julia sets of rational maps occupy one of the most prominent positions. Their beauty and complexity can be fascinating. They also hold a deep mathematical content. Computational hardness of Julia sets is the main subject of this book. By definition, a computable set in the plane can be visualized on a computer screen with an arbitrarily high magnification. There are countless programs to draw Julia sets. Yet, as the authors have discovered, it is possible to constructively produce examples of quadratic polynomials, whose Julia sets are not computable. This result is striking - it says that while a dynamical system can be described numerically with an arbitrary precision, the picture of the dynamics cannot be visualized. The book summarizes the present knowledge about the computational properties of Julia sets in a self-contained way. It is accessible to experts and students with interest in theoretical computer science or dynamical systems.


Digital
Fixed Point of the Parabolic Renormalization Operator
Authors: ---
ISBN: 9783319117072 Year: 2014 Publisher: Cham Springer International Publishing

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Abstract

This monograph grew out of the authors' efforts to provide a natural geometric description for the class of maps invariant under parabolic renormalization and for the Inou-Shishikura fixed point itself as well as to carry out a computer-assisted study of the parabolic renormalization operator. It introduces a renormalization-invariant class of analytic maps with a maximal domain of analyticity and rigid covering properties and presents a numerical scheme for computing parabolic renormalization of a germ, which is used to compute the Inou-Shishikura renormalization fixed point.   Inside, readers will find a detailed introduction into the theory of parabolic bifurcation,  Fatou coordinates, Écalle-Voronin conjugacy invariants of parabolic germs, and the definition and basic properties of parabolic renormalization.   The systematic view of parabolic renormalization developed in the book and the numerical approach to its study will be interesting to both experts in the field as well as graduate students wishing to explore one of the frontiers of modern complex dynamics.


Digital
Computability of Julia Sets
Authors: --- --- --- --- --- et al.
ISBN: 9783540685470 Year: 2009 Publisher: Berlin, Heidelberg Springer Berlin Heidelberg

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Book
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This artist's book designed by Jack Fisher focuses on encounters and spaces between languages through the work of Imogen Stidworthy with contributions from writers Caroline Bergvall, Steven Connor, Mladen Dolar and Alphonso Lingis, and artists Werner Feiersinger, Aglaia Konrad and Willem Oorebeek. Taking Stidworthy's artistic practice as a starting point, it traces paths between the images and texts to address related questions. Central to these social and cultural borders which manifest in it. How are we located in the voice and language, and how does this shape our relation to ourselves, our bodies and the spaces we inhabit? Stidworthy's voice runs through the book in the form of video stills, photographs, transcripts and research material which are configured into new images and relationships. Exhibition: Matt's Gallery, London.

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