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arXiv 1702.00907math.PR
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带跳扩散过程局部多项式阈值估计的中心极限定理

Central Limit Theorems of Local Polynomial Threshold Estimators for Diffusion Processes with Jumps

Yuping Song, Hanchao Wang

摘要:

中心极限定理在随机过程统计推断的研究中起着重要的作用。然而,当用非参数局部多项式阈值估计,特别是局部线性情形估计扩散过程的扩散系数时,估计器在扩散过程生成的$σ-$场上的自适应和可预测结构被破坏,经典的鞅差序列的中心极限定理不能成立.本文证明了带跳扩散过程波动函数局部多项式阈值估计的中心极限定理。我们相信我们对局部多项式阈值估计的证明为这一领域提供了一种新的方法,特别是局部线性情形。

英文摘要:

Central limit theorems play an important role in the study of statistical inference for stochastic processes. However, when the nonparametric local polynomial threshold estimator, especially local linear case, is employed to estimate the diffusion coefficients of diffusion processes, the adaptive and predictable structure of the estimator conditionally on the $σ-$field generated by diffusion processes is destroyed, the classical central limit theorem for martingale difference sequences can not work. In this paper, we proved the central limit theorems of local polynomial threshold estimators for the volatility function in diffusion processes with jumps. We believe that our proof for local polynomial threshold estimators provides a new method in this fields, especially local linear case.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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