Multidimensional parameter estimation of heavy‐tailed moving averages

MM Ljungdahl, M Podolskij - Scandinavian Journal of Statistics, 2022 - Wiley Online Library
In this article we present a parametric estimation method for certain multiparameter heavy‐
tailed Lévy‐driven moving averages. The theory relies on recent multivariate central limit …

A minimal contrast estimator for the linear fractional stable motion

MM Ljungdahl, M Podolskij - Statistical Inference for Stochastic Processes, 2020 - Springer
In this paper we present an estimator for the three-dimensional parameter (σ, α, H)(σ, α, H) of
the linear fractional stable motion, where H represents the self-similarity parameter, and (σ …

A Berry–Esseén theorem for partial sums of functionals of heavy-tailed moving averages

A Basse-O'Connor, M Podolskij, C Thäle - 2020 - projecteuclid.org
In this paper we obtain Berry–Esseén bounds on partial sums of functionals of heavy-tailed
moving averages, including the linear fractional stable noise, stable fractional ARIMA …

Estimation of mixed fractional stable processes using high-frequency data

F Mies, M Podolskij - The Annals of Statistics, 2023 - projecteuclid.org
Estimation of mixed fractional stable processes using high-frequency data Page 1 The
Annals of Statistics 2023, Vol. 51, No. 5, 1946–1964 https://doi.org/10.1214/23-AOS2312 © …

Asymptotic theory for quadratic variation of harmonizable fractional stable processes

A Basse-O'Connor, M Podolskij - Theory of Probability and Mathematical …, 2024 - ams.org
In this paper we study the asymptotic theory for quadratic variation of a harmonizable
fractional $\alpha $-stable process. We show a law of large numbers with a non-ergodic limit …

Mixing properties of stable random fields indexed by amenable and hyperbolic groups

M Mj, P Roy, S Sarkar - arXiv preprint arXiv:2205.15849, 2022 - arxiv.org
We show that any stationary symmteric $\alpha $-stable ($ S\alpha S $) random field
indexed by a countable amenable group $ G $ is weakly mixing if and only if it is generated …

Phase transition for extremes of a family of stationary multiple-stable processes

S Bai, Y Wang - arXiv preprint arXiv:2110.07497, 2021 - arxiv.org
We investigate a family of multiple-stable processes that may exhibit either long-range or
short-range dependence, depending on the parameters. There are two parameters for the …

A multidimensional stable limit theorem

M Barczy, G Pap - arXiv preprint arXiv:2012.04541, 2020 - arxiv.org
We establish multidimensional analogues of one-dimensional stable limit theorems due to
H\" ausler and Luschgy (2015) for so called explosive processes. As special cases we …

Phase transition for extremes of a family of stationary multiple-stable processes

S Bai, Y Wang - Annales de l'Institut Henri Poincare (B) …, 2024 - projecteuclid.org
We investigate a family of stationary processes that may exhibit either long-range or short-
range dependence, depending on the parameters. The processes can be represented as …

Limit theorems for high-frequency data: from semimartingales to ambit fields

N LENGERT - 2024 - orbilu.uni.lu
Understanding the asymptotic behavior of statistics based on high frequency observations
has gained considerable attention in the recent years, notably due to the ever-growing …