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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.
Algebra. --- Algorithms. --- Computer science. --- Computer software. --- Information theory. --- Julia sets. --- Julia sets --- Engineering & Applied Sciences --- Mathematics --- Physical Sciences & Mathematics --- Geometry --- Computer Science --- Data processing --- Fractals. --- Data processing. --- Fractal geometry --- Fractal sets --- Geometry, Fractal --- Sets, Fractal --- Sets of fractional dimension --- Sets, Julia --- Mathematics. --- Computer programming. --- Computers. --- Computer science --- Programming Techniques. --- Theory of Computation. --- Algorithm Analysis and Problem Complexity. --- Mathematics of Computing. --- Dimension theory (Topology) --- Fractals --- Software, Computer --- Computer systems --- Communication theory --- Communication --- Cybernetics --- Informatics --- Science --- Mathematical analysis --- Algorism --- Algebra --- Arithmetic --- Foundations --- Computer science—Mathematics. --- Automatic computers --- Automatic data processors --- Computer hardware --- Computing machines (Computers) --- Electronic brains --- Electronic calculating-machines --- Electronic computers --- Hardware, Computer --- Machine theory --- Calculators --- Cyberspace --- Computers --- Electronic computer programming --- Electronic data processing --- Electronic digital computers --- Programming (Electronic computers) --- Coding theory --- Programming
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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.
Differential equations, Parabolic. --- Differential equations, Parabolic --- Renormalization (Physics) --- Numerical solutions. --- Charge and mass renormalization --- Mass and charge renormalization --- Electric charge and distribution --- Mass (Physics) --- Physical measurements --- Quantum field theory --- Numerical analysis --- Parabolic differential equations --- Parabolic partial differential equations --- Differential equations, Partial --- Differentiable dynamical systems. --- Functions of complex variables. --- Numerical analysis. --- Dynamical Systems and Ergodic Theory. --- Functions of a Complex Variable. --- Numerical Analysis. --- Mathematical analysis --- Complex variables --- Elliptic functions --- Functions of real variables --- Differential dynamical systems --- Dynamical systems, Differentiable --- Dynamics, Differentiable --- Differential equations --- Global analysis (Mathematics) --- Topological dynamics --- Dynamics. --- Ergodic theory. --- Ergodic transformations --- Continuous groups --- Mathematical physics --- Measure theory --- Transformations (Mathematics) --- Dynamical systems --- Kinetics --- Mathematics --- Mechanics, Analytic --- Force and energy --- Mechanics --- Physics --- Statics
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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.
Algebra --- Complex analysis --- Computer science --- Computer. Automation --- algebra --- toegepaste informatica --- complexe analyse (wiskunde) --- informatica --- wiskunde --- algoritmen
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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.
Mathematics --- Algebraic geometry --- Differential geometry. Global analysis --- Functional analysis --- Ergodic theory. Information theory --- Numerical analysis --- complexe veranderlijken --- differentiaal geometrie --- functies (wiskunde) --- wiskunde --- numerieke analyse --- informatietheorie
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Algebra --- Complex analysis --- Computer science --- Computer. Automation --- algebra --- toegepaste informatica --- complexe analyse (wiskunde) --- informatica --- wiskunde --- algoritmen
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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.
texts [document genres] --- installations [visual works] --- language [general communication] --- video art --- Art --- Stidworthy, Imogen --- texts [documents] --- Language and languages in art --- Words in art --- kunst --- concept art --- Groot-Brittannië --- installaties --- conceptuele kunst --- 7.071 STIDWORTHY --- Stidworthy Imogen --- woord en beeld --- Exhibitions
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