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AuthorHรถgnรคs, Gรถran. author
TitleProbability Measures on Semigroups [electronic resource] : Convolution Products, Random Walks, and Random Matrices / by Gรถran Hรถgnรคs, Arunava Mukherjea
ImprintBoston, MA : Springer US : Imprint: Springer, 1995
Connect tohttp://dx.doi.org/10.1007/978-1-4757-2388-5
Descript XII, 388 p. online resource

SUMMARY

A Scientific American article on chaos, see Crutchfield et al. (1986), illusยญ trates a very persuasive example of recurrence. A painting of Henri Poincare, or rather a digitized version of it, is stretched and cut to produce a mildly distorted image of Poincare. The same procedure is applied to the distorted image and the process is repeated over and over again on the successively more and more blurred images. After a dozen repetitions nothing seems to be left of the original portrait. Miraculously, structured images appear briefly as we continue to apply the distortion procedure to successive images. After 241 iterations the original picture reappears, unchanged! Apparently the pixels of the Poincare portrait were moving about in accorยญ dance with a strictly deterministic rule. More importantly, the set of all pixels, the whole portrait, was transformed by the distortion mechanism. In this examยญ ple the transformation seems to have been a reversible one since the original was faithfully recreated. It is not very farfetched to introduce a certain amount of randomness and irreversibility in the above example. Think of a random miscoloring of some pixels or of inadvertently giving a pixel the color of its neighbor. The methods in this book are geared towards being applicable to the asympยญ totics of such transformation processes. The transformations form a semigroup in a natural way; we want to investigate the long-term behavior of random elements of this semigroup


CONTENT

1. Semigroups -- 2. Probability Measures on Topological Semigroups -- 3. Random Walks on Semigroups -- 4. Random Matrices


Mathematics Topological groups Lie groups Applied mathematics Engineering mathematics Mathematics Applications of Mathematics Topological Groups Lie Groups



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