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Proceedings of the American Mathematical Society
ISSN 1088-6826 (e) ISSN 0002-9939 (p)
     

Geometric Brownian motion with delay: mean square characterisation

Author(s): John A. D. Appleby; Xuerong Mao; Markus Riedle
Journal: Proc. Amer. Math. Soc. 137 (2009), 339-348.
MSC (2000): Primary 60H20, 60H10, 34K20, 34K50
Posted: April 22, 2008
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Abstract: A geometric Brownian motion with delay is the solution of a stochastic differential equation where the drift and diffusion coefficients depend linearly on the past of the solution, i.e. a linear stochastic functional differential equation. In this work the asymptotic mean square behaviour of a geometric Brownian motion with delay is completely characterised by a sufficient and necessary condition in terms of the drift and diffusion coefficients.


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Additional Information:

John A. D. Appleby
Affiliation: School of Mathematical Sciences, Dublin City University, Dublin 9, Ireland
Email: john.appleby@dcu.ie

Xuerong Mao
Affiliation: Department of Statistical and Modelling Science, Strathclyde University, Glasgow, United Kingdom
Email: xuerong@stams.strath.ac.uk

Markus Riedle
Affiliation: School of Mathematics, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
Email: markus.riedle@manchester.ac.uk

DOI: 10.1090/S0002-9939-08-09490-2
PII: S 0002-9939(08)09490-2
Keywords: Stochastic functional differential equations, geometric Brownian motion, mean square stability, renewal equation, variation of constants formula
Received by editor(s): March 23, 2007,
Received by editor(s) in revised form: November 15, 2007, and January 11, 2008
Posted: April 22, 2008
Additional Notes: The first author was partially funded by an Albert College Fellowship, awarded by Dublin City University's Research Advisory Panel.
Communicated by: Richard C. Bradley
Copyright of article: Copyright 2008, American Mathematical Society


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