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Stable Central Limit Theorems for Super Ornstein-Uhlenbeck Processes, II

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Abstract

This paper is a continuation of our recent paper (Electron. J. Probab., 24(141), (2019)) and is devoted to the asymptotic behavior of a class of supercritical super Ornstein-Uhlenbeck processes (Xt)t≥0 with branching mechanisms of infinite second moments. In the aforementioned paper, we proved stable central limit theorems for Xt(f) for some functions f of polynomial growth in three different regimes. However, we were not able to prove central limit theorems for Xt(f) for all functions f of polynomial growth. In this note, we show that the limiting stable random variables in the three different regimes are independent, and as a consequence, we get stable central limit theorems for Xt(f) for all functions f of polynomial growth.

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Acknowledgements

We thank the referees for the very helpful comments.

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Correspondence to Zhen Yao Sun.

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Yan Xia Ren is supported in part by NSFC (Grant Nos. 11731009 and 12071011) and the National Key R&D Program of China (Grant No. 2020YFA0712900). Renming Song is supported in part by Simons Foundation (#429343, Renming Song)

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Ren, Y.X., Song, R.M., Sun, Z.Y. et al. Stable Central Limit Theorems for Super Ornstein-Uhlenbeck Processes, II. Acta. Math. Sin.-English Ser. 38, 487–498 (2022). https://doi.org/10.1007/s10114-022-0559-y

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