Random geometric complexes.(English)Zbl 1219.05175

In this paper the expected topological properties are investigated for Čech and Vietoris-Rips complexes built on random points in $$\mathbb R^d$$. In particular are identified intervals of vanishing and non-vanishing for each homology group, and asymptotic formulas for the expected rank of homology are determined when this is non-vanishing. There is also a close connection to geometric probability, and in particular to the theory of geometric random graphs. The main technical contribution of the article is the application of discrete Morse theory in geometric probability. Several motivations and comments are also provided in the interesting introductory section

MSC:

 05C80 Random graphs (graph-theoretic aspects) 05E18 Group actions on combinatorial structures 60D05 Geometric probability and stochastic geometry
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