activity
20232026
collaborators

5 papers

math.PR2026

Graph distance and effective resistance of the random walk trace in four and five dimensions

Arka Adhikari, Izumi Okada, Daisuke Shiraishi

In this paper, we prove that the fluctuations of the graph distance and the effective resistance on the trace of a random walk in four and five dimensions converge in distribution…

math.PR2026

Phase transition on the fluctuation of the structure of random walk ranges

Arka Adhikari, Izumi Okada

We investigate fluctuation phenomena for the graph distance and the number of cut points associated with random media arising from the range of a random walk. Our results demonstra…

math.PR2025

Strassen's LIL and a Phase transition for the capacity of the random walk under diameter constraints

Arka Adhikari, Izumi Okada

We discuss the relationship between the capacity and the geometry for the range of the random walk for . In particular, we consider how efficiently the random walk moves or wh…

math.PR2024

Favorite sites for simple random walk in two and more dimensions

Chenxu Hao, Xinyi Li, Izumi Okada +1

On the trace of a discrete-time simple random walk on for , we consider the evolution of favorite sites, i.e., sites that achieve the maximal local time at…

math.PR2023

Moderate Deviations for the Capacity of the Random Walk range in dimension four

Arka Adhikari, Izumi Okada

In this paper, we find a natural four dimensional analog of the moderate deviation results for the capacity of the random walk, which corresponds to Bass, Chen and Rosen \cite{BCR}…