Yixuan Zhang

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20242026

most citedConstant Stepsize Q-learning: Distributional Convergence, Bias and Extrapolation

1 citations · 1 across the 9 of their papers we have counts for

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math.PR2026

Gaussian Approximation in Wasserstein-p: Markovian Martingale Differences and Stochastic Approximation

Yixuan Zhang, Qiaomin Xie

We establish nonasymptotic Gaussian approximation bounds in higher-order Wasserstein distance $W_{p}$ , $p \geq 2$ , for deterministic matrix-weighted sums of multivariate Poisson martin…

math.PR2026

Wasserstein-p Central Limit Theorem Rates: From Local Dependence to Markov Chains

Yixuan Zhang, Qiaomin Xie

Non-asymptotic central limit theorem (CLT) rates play a central role in modern machine learning and operations research. In this paper, we study CLT rates for multivariate dependen…