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Functional limit theorems for the euler characteristic process in the critical regime

Part of: Limit theorems Applied homological algebra and category theory Geometric probability and stochastic geometry Combinatorial probability

Published online by Cambridge University Press:  17 March 2021

Andrew M. Thomas Open the ORCID record for Andrew M. Thomas [Opens in a new window]  and
Takashi Owada
Andrew M. Thomas*
Affiliation:
Purdue University
Takashi Owada*
Affiliation:
Purdue University
*
*Postal address: Department of Statistics, Purdue University, West Lafayette, IN47907, USA. Email address: thoma186@purdue.edu
*Postal address: Department of Statistics, Purdue University, West Lafayette, IN47907, USA. Email address: thoma186@purdue.edu
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Abstract

This study presents functional limit theorems for the Euler characteristic of Vietoris–Rips complexes. The points are drawn from a nonhomogeneous Poisson process on $\mathbb{R}^d$ , and the connectivity radius governing the formation of simplices is taken as a function of the time parameter t, which allows us to treat the Euler characteristic as a stochastic process. The setting in which this takes place is that of the critical regime, in which the simplicial complexes are highly connected and have nontrivial topology. We establish two ‘functional-level’ limit theorems, a strong law of large numbers and a central limit theorem, for the appropriately normalized Euler characteristic process.

Keywords

Functional central limit theoremfunctional strong law of large numbersEuler characteristicgeometric simplicial complex

MSC classification

Primary: 60F17: Functional limit theorems; invariance principles
Secondary: 55U10: Simplicial sets and complexes 60C05: Combinatorial probability 60D05: Geometric probability and stochastic geometry
Type
Original Article
Information
Advances in Applied Probability , Volume 53 , Issue 1 , March 2021 , pp. 57 - 80
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Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of Applied Probability Trust

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