# Probability Approximations via the Poisson Clumping Heuristic

Part of the Applied Mathematical Sciences book series (AMS, volume 77)

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Part of the Applied Mathematical Sciences book series (AMS, volume 77)

If you place a large number of points randomly in the unit square, what is the distribution of the radius of the largest circle containing no points? Of the smallest circle containing 4 points? Why do Brownian sample paths have local maxima but not points of increase, and how nearly do they have points of increase? Given two long strings of letters drawn i. i. d. from a finite alphabet, how long is the longest consecutive (resp. non-consecutive) substring appearing in both strings? If an imaginary particle performs a simple random walk on the vertices of a high-dimensional cube, how long does it take to visit every vertex? If a particle moves under the influence of a potential field and random perturbations of velocity, how long does it take to escape from a deep potential well? If cars on a freeway move with constant speed (random from car to car), what is the longest stretch of empty road you will see during a long journey? If you take a large i. i. d. sample from a 2-dimensional rotationally-invariant distribution, what is the maximum over all half-spaces of the deviation between the empirical and true distributions? These questions cover a wide cross-section of theoretical and applied probability. The common theme is that they all deal with maxima or min ima, in some sense.

Brownian motion Markov chain Maxima hitting time random walk

- DOI https://doi.org/10.1007/978-1-4757-6283-9
- Copyright Information Springer-Verlag New York 1989
- Publisher Name Springer, New York, NY
- eBook Packages Springer Book Archive
- Print ISBN 978-1-4419-3088-0
- Online ISBN 978-1-4757-6283-9
- Series Print ISSN 0066-5452
- Buy this book on publisher's site