activity
20042026
most citedThe efficiency of the estimators of the parameters in GARCH processes

182 citations · 508 across the 28 of their papers we have counts for

collaborators

32 papers

math.FA2026

Lacunary Series, Nonlinear Functionals and Banach Space Structure

Istvan Berkes, Eduard Stefanescu, Robert Tichy

In a previous paper \cite{BT} we studied the asymptotic behavior of for lacunary sequences of random variables in and used the r…

math.FA2025

A Marcinkiewicz-Zygmund inequality and the Kadec Pełczynśki theorem in Orlicz spaces

Istvan Berkes, Eduard Stefanescu, Robert Tichy

In this paper, we extend the Marcinkiewicz--Zygmund inequality to the setting of Orlicz and Lorentz spaces. Furthermore, we generalize a Kadec--Pełczyński-type result -- originally…

math.NT2023

Lacunary sequences in analysis, probability and number theory

Christoph Aistleitner, Istvan Berkes, Robert Tichy

In this paper we present the theory of lacunary trigonometric sums and lacunary sums of dilated functions, from the origins of the subject up to recent developments. We describe th…

math.PR2022★ 3 cited

Random walks on the circle and Diophantine approximation

Istvan Berkes, Bence Borda

Random walks on the circle group whose elementary steps are lattice variables with span or taken mod …

math.PR2020★ 2 cited

On the discrepancy of random subsequences of II

Istvan Berkes, Bence Borda

Let be an irrational number, let be independent, identically distributed, integer-valued random variables, and put . Assuming that $X_1…

math.NT2019★ 4 cited

On the discrepancy of random subsequences of

Istvan Berkes, Bence Borda

For irrational , is uniformly distributed mod 1 in the Weyl sense, and the asymptotic behavior of its discrepancy is completely known. In contrast, very few precise res…