3 papers
math.PR2025
Universality of cutoff for independent random walks on the circle conditioned not to intersect
Anna Ben-Hamou, Pierre Tarrago
In the present paper, we consider a class of Markov processes on the discrete circle which has been introduced by König, O'Connell and Roch. These processes describe movements of…
math.PR2025
Mixing time of a matrix random walk generated by elementary transvections
Anna Ben-Hamou
We consider a Markov chain on invertible matrices with entries in which moves by picking an ordered pair of distinct rows and add the first one to the ot…
math.ST2024
On deviation probabilities in non-parametric regression with heavy-tailed noise
Anna Ben-Hamou, Arnaud Guyader
This paper is devoted to the problem of determining the concentration bounds that are achievable in non-parametric regression. We consider the setting where features are supported…