Qinwei Chen

collaborators

3 papers

math.PR2025

The maximal correlation coefficient associated with the minimum

Yinshan Chang, Qinwei Chen

For independent random variables $(X_{i})_{1 \leq i \leq n}$ , we consider the maximal correlation coefficient $R = R (min_{i : 1 \leq i \leq m} X_{i}, min_{j : ℓ + 1 \leq j \leq n} X_{j})$ . If $X_1,X…

math.PR2025

Strong law of large numbers for a function of the local times of a transient random walk on groups

Yinshan Chang, Qinwei Chen, Qian Meng +1

This paper presents the strong law of large numbers for a function of the local times of a transient random walk on groups, extending the research of Asymont and Korshunov for rand…

math.PR2024

On the maximal correlation of some stochastic processes

Yinshan Chang, Qinwei Chen

We study the maximal correlation coefficient $R (X, Y)$ between two stochastic processes $X$ and $Y$ . In the case when $(X, Y)$ is a random walk, we find $R (X, Y)$ using the Csáki-Fisc…