Volatility change point detection for linear parabolic SPDEs

Fuente: arXiv
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Main Authors: Tonaki, Yozo, Kaino, Yusuke, Uchida, Masayuki
Format: Preprint
Published: 2025
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author Tonaki, Yozo
Kaino, Yusuke
Uchida, Masayuki
author_facet Tonaki, Yozo
Kaino, Yusuke
Uchida, Masayuki
contents We consider change point detection for the volatility in second order linear parabolic stochastic partial differential equations based on high frequency spatio-temporal data. We give a test statistic to detect changes in the volatility based on change point analysis for diffusion processes and derive the asymptotic null distribution of the test statistic. We also show that the test is consistent. Moreover, we provide some examples and then perform numerical simulations of the proposed test statistic.
format Preprint
id arxiv_https___arxiv_org_abs_2512_01277
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Volatility change point detection for linear parabolic SPDEs
Tonaki, Yozo
Kaino, Yusuke
Uchida, Masayuki
Statistics Theory
We consider change point detection for the volatility in second order linear parabolic stochastic partial differential equations based on high frequency spatio-temporal data. We give a test statistic to detect changes in the volatility based on change point analysis for diffusion processes and derive the asymptotic null distribution of the test statistic. We also show that the test is consistent. Moreover, we provide some examples and then perform numerical simulations of the proposed test statistic.
title Volatility change point detection for linear parabolic SPDEs
topic Statistics Theory
url https://arxiv.org/abs/2512.01277