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math.ST2025
Asymptotics for Reinforced Stochastic Processes on Hierarchical Networks
Li Yang, Dandan Jiang, Jiang Hu +1
In this paper, we analyze the asymptotic behavior of a system of interacting reinforced stochastic processes on a directed network of agents. The sys…
math.ST2025
Asymptotic distributions of four linear hypotheses test statistics under generalized spiked model
Zhijun Liu, Jiang Hu, Zhidong Bai +1
In this paper, we establish the Central Limit Theorem (CLT) for linear spectral statistics (LSSs) of large-dimensional generalized spiked sample covariance matrices, where the spik…
math.ST2025
Edgeworth corrections for the spiked eigenvalues of non-Gaussian sample covariance matrices with applications
Yashi Wei, Jiang Hu, Zhidong Bai
Yang and Johnstone (2018) established an Edgeworth correction for the largest sample eigenvalue in a spiked covariance model under the assumption of Gaussian observations, leaving…