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Bibliographic Details
Main Authors: Egami, Masahiko, Kevkhishvili, Rusudan
Format: Preprint
Published: 2022
Subjects:
Online Access:https://arxiv.org/abs/2210.01321
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Table of Contents:
  • For a regular transient diffusion, we provide a decomposition of its last passage time to a certain state $α$. This is accomplished by transforming the original diffusion into two diffusions using the occupation time of the area above and below $α$. Based on these two processes, both having a reflecting boundary at $α$, we derive the decomposition formula of the Laplace transform of the last passage time explicitly in a simple form in terms of Green functions. This equation also leads to the Green function's decomposition formula. We demonstrate an application of these formulas to a diffusion with two-valued parameters.