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Planar maps, random walks and circle packing

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This open access book focuses on the interplay between random walks on planar maps and Koebe’s circle packing theorem. Further topics covered include electric networks, the He–Schramm theorem on infinite circle packings, uniform spanning trees of planar maps, local limits of finite planar maps and the almost sure recurrence of simple random walks on these limits. One of its main goals is to present a self-contained proof that the uniform infinite planar triangulation (UIPT) is almost surely recurrent. Full proofs of all statements are provided. A planar map is a graph that can be drawn in the plane without crossing edges, together with a specification of the cyclic ordering of the edges incident to each vertex. One widely applicable method of drawing planar graphs is given by Koebe’s circle packing theorem (1936). Various geometric properties of these drawings, such as existence of accumulation points and bounds on the radii, encode important probabilistic information, such as the recurrence/transience of simple random walks and connectivity of the uniform spanning forest. This deep connection is especially fruitful to the study of random planar maps. The book is aimed at researchers and graduate students in mathematics and is suitable for a single-semester course; only a basic knowledge of graduate level probability theory is assumed.

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Detail Information

Series Title

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Call Number

519.282 ASA a

Publisher

Cham, Switzerland : Springer Cham., 2019

Collation

xii; 120 PG; ill.

Language

English

ISBN/ISSN

9783030279684

Classification

519.282

Content Type

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Media Type

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Carrier Type

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Edition

1

Subject(s)

Circle Packing
Electronic Networks
Planar Maps
Random Walk
Geometry

Specific Detail Info

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