A note on the exact simulation of spherical Brownian motion. Mijatović, A., Mramor, V., & Uribe Bravo, G. Statistics & Probability Letters, 165:108836, 2020.
Paper doi abstract bibtex We describe an exact simulation algorithm for the increments of Brownian motion on a sphere of arbitrary dimension, based on the skew-product decomposition of the process with respect to the standard geodesic distance. The radial process is closely related to a Wright–Fisher diffusion, increments of which can be simulated exactly using the recent work of Jenkins & Spanò (2017). The rapid spinning phenomenon of the skew-product decomposition then yields the algorithm for the increments of the process on the sphere.
@article{MIJATOVIC2020108836,
abstract = {We describe an exact simulation algorithm for the increments of Brownian motion on a sphere of arbitrary dimension, based on the skew-product decomposition of the process with respect to the standard geodesic distance. The radial process is closely related to a Wright--Fisher diffusion, increments of which can be simulated exactly using the recent work of Jenkins & Span{\`o} (2017). The rapid spinning phenomenon of the skew-product decomposition then yields the algorithm for the increments of the process on the sphere.},
author = {Aleksandar Mijatovi{\'c} and Veno Mramor and Ger{\'o}nimo {Uribe Bravo}},
date-added = {2020-11-06 08:58:06 -0600},
date-modified = {2023-01-05 16:25:10 -0600},
doi = {https://doi.org/10.1016/j.spl.2020.108836},
issn = {0167-7152},
journal = {Statistics & Probability Letters},
keywords = {Exact simulation, Skew-product decomposition, Spherical Brownian motion, Wright--Fisher diffusion, Brownian Motion},
pages = {108836},
title = {A note on the exact simulation of spherical Brownian motion},
url = {http://www.sciencedirect.com/science/article/pii/S0167715220301395},
volume = {165},
year = {2020},
bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/S0167715220301395},
bdsk-url-2 = {https://doi.org/10.1016/j.spl.2020.108836}}
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