STOCHASTIC DIFFERENTIAL
EQUATIONS AND APPLICATIONS
Second Edition
ABOUT OUR AUTHOR
Professor Xuerong Mao was born in 1957 in the city of Fuzhou in the
province of Fujian, Peoples Republic of China. After obtaining a
Diploma at the Textile University, Shanghai, he graduated from the
Department of Mathematics with a Masters Degree. His first teaching
appointment was Lecturer in the Department of Management at Fuzhou
University.
Arriving in England in 1987, he was awarded a Doctorate by the
Mathematics Institute at the University of Warwick and was then a Post-
Doctoral Research Fellow at the Science and Research Engineering
Council from 1989-1992. Moving to Scotland, he joined the Department
of Statistics and Modelling Science, University of Strathclyde, Glasgow
as a lecturer in 1992, was promoted to Reader in 1995 and made
Professor in 1998 which post he still holds.
Professor Mao is well known and highly respected for his mathematical
reputation and has published numerous papers in mathematical journals
in both China and the West, in addition to writing four published books;
Stability of Stochastic Differential Equations with Respect to
Semimartingales (1991), Exponential Stability of Stochastic Differential
Equations (1994), Stochastic Differential Equations and Applications
(First Edition)(1997) and
Stochastic Differential Equations with
Markovian Switching (2006).
Recognition came from the American Biographical Institute in 2000 with
the Millennium Gold Medal of Honour, and he has been visiting Guest
Professor of several Chinese universities including Huazhong University
of Science and Technology in Wuhan. He is a member of the editorial
boards of several international journals including Journal of Stochastic
Analysis and Applications and Journal of Dynamics of Continuous,
Discrete & Impulsive Systems Series B.
STOCHASTIC DIFFERENTIAL
EQUATIONS AND APPLICATIONS
Second Edition
Xuerong Mao
Department of Statistics and Modelling Science
University of Strathclyde, Glasgow
Horwood Publishing
Chichester, UK
HORWOOD PUBLISHING LIMITED
International Publishers in Science and Technology
Coll House, Westergate, Chichester, West Sussex, PO20 3QL, England
First published in 1997
Second Edition published in 2007
COPYRIGHT NOTICE
All Rights Reserved. No part of this publication may be reproduced, stored in a
retrieval system, or transmitted in any form or by any means, electronic,
mechanical, photocopying, recording, or otherwise, without the permission of
Horwood Publishing Limited, Coll House, Westergate, Chichester, West Sussex,
PO20 3QL, England.
© Horwood Publishing Limited, 2007.
British Library Cataloguing in Publication Data
A catalogue record of this book is available from the British Library
ISBN: 978-1-904275-34-3
Cover design by Jim Wilkie
Printed and bound in the UK by Antony Rowe Limited.
DEDICATION
To my parents:
Mr Mao Yiming and Mrs Chen Dezhen
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Preface to the Second Edition
In this new edition, I have added some material which is particu-
larly useful in applications, namely the new Section 9.3 on options and
their values and the new Chapter 11 on stochastic delay population
systems. In addition, more material has been added to Section 9.2 to
include several popular stochastic models in finance, while the con-
cept of the maximal local solution to a stochastic functional differential
equation has been added to Section 5.2 which forms a fundamental
theory for our new Chapter 11.
During this work, I have benefitted from valuable comments and
help from several people, including K.D. Elworthy, G. Gettinby, W.
Gurney, D.J. Higham, N. Jacob, P. Kloeden, J. Lam, X. Liao, E.
Renshaw, A.M. Stuart, A. Truman, G.G. Yin. I am grateful to them
all for their help.
I would like to thank the EPSRC/BBSRC, the Royal Society, the
London Mathematics Society as well as the Edinburgh Mathematical
Society for their financial support. Moreover, I should thank my
family, in particular, Weihong, for their constant support.
Xuerong Mao
Glasgow June 2007
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