activity
20192026
most citedIterated-logarithm laws for convex hulls of random walks with drift

3 citations · 3 across the 9 of their papers we have counts for

collaborators

9 papers

math.PR2026

On the convex hull of a planar Brownian bridge with a random Gaussian endpoint

Nikola Sandrić, Stjepan Šebek, Luka Šimek

We consider a one-parameter family of isotropic planar Gaussian processes \[ X_σ(t) =B_t+σt Z,\qquad 0\le t\le 1,\quad 0\le σ\le 1, \] where is a standard (-to-) planar B…

math.PR2025

Stability of storage processes with general release rates

Miha Brešar, Aleksandar Mijatović, Nikola Sandrić

This paper quantifies the ergodicity and the rate of decay of the tail of the stationary distribution for a broad class of storage models, encompassing constant, linear, and power-…

math.PR2025

Fluctuations for diameter and perimeter of convex hulls of multiple random walks

Wojciech Cygan, Tomislav Kralj, Nikola Sandrić +3

We study the diameter and perimeter of the convex hull generated by finitely many independent planar random walks whose increments have finite second moments. The large-time fluctu…

stat.ML2025

Rademacher learning rates for iterated random functions

Nikola Sandrić

Most existing literature on supervised machine learning assumes that the training dataset is drawn from an i.i.d. sample. However, many real-world problems exhibit temporal depende…

math.PR2024

On the convex hull of two planar random walks

Daniela Ivanković, Tomislav Kralj, Nikola Sandrić +1

In this paper, we study the limiting behavior of the perimeter and diameter functionals of the convex hull spanned by the first steps of two planar random walks. As the main re…

math.PR2023★ 3 cited

Iterated-logarithm laws for convex hulls of random walks with drift

Wojciech Cygan, Nikola Sandrić, Stjepan Šebek +1

We establish laws of the iterated logarithm for intrinsic volumes of the convex hull of many-step, multidimensional random walks whose increments have two moments and a non-zero dr…

math.PR2022

On subgeometric ergodicity of regime-switching diffusion processes

Petra Lazić, Nikola Sandrić

In this article, we discuss subgeometric ergodicity of a class of regime-switching diffusion processes. We derive conditions on the drift and diffusion coefficients, and the switch…

math.PR2022

Convex hulls of stable random walks

Wojciech Cygan, Nikola Sandrić, Stjepan Šebek

We consider convex hulls of random walks whose steps belong to the domain of attraction of a stable law in . We prove convergence of the convex hull in the space of a…

math.PR2019

Invariance principle for the capacity and the cardinality of the range of stable random walks

Wojciech Cygan, Nikola Sandrić, Stjepan Šebek

We prove an almost sure invariance principle for the capacity and the cardinality of the range of a class of -stable random walks on the integer lattice with $d/α…