Mark H. A. Davis is confirmed dead at the age of 74.
Mark was best known as a British mathematician.
Mark Davis
Born
Mark Herbert Ainsworth Davis

(1945-04-25)25 April 1945
Died18 March 2020(2020-03-18) (aged 74)
NationalityEnglish
Alma mater
Known for
Awards
Scientific career
FieldsMathematician
InstitutionsImperial College London
ThesisDynamic Programming Conditions for Partially Observable Stochastic Systems (1971)
Doctoral advisorPravin Varaiya[1]
Websitewww.imperial.ac.uk/news/196534/obituary-professor-mark-davis/, sinews.siam.org/Details-Page/obituary-mark-ha-davis
Mark Herbert Ainsworth Davis (1945–2020) was Professor of Mathematics at Imperial College London. He made fundamental contributions to the theory of stochastic processes, stochastic control and mathematical finance.
Contents
1 Education and career
2 Research
3 Bibliography
4 References
Education and career
After completing his BA degree in Electrical Engineering at the University of Cambridge, Davis pursued his PhD degree at UC Berkeley under the supervision of Pravin Varaiya. His PhD thesis, obtained in 1971, initiated the martingale theory of stochastic control. Returning to the UK in 1972, Davis joined the Control Group at Imperial College London. From 1995 to 1999 he was Head of Research and Product Development at Tokyo-Mitsubishi International, leading a quantitative research team providing pricing models and risk analysis for fixed income, equity and credit-related products. He returned to Imperial College London in August 2000 to build Imperial’s Mathematical Finance group within the Department of Mathematics.
Research
Davis made several contributions to the theory of stochastic processes, stochastic control and mathematical finance. His early work in the 1970s initiated the martingale theory of stochastic control. One of his key contributions is the martingale optimality principle in stochastic control, which characterizes optimal strategies through the martingale property of the value process. In a 1984 paper he introduced the concept of Piecewise deterministic Markov process, a class of Markov models which have been used in many applications in engineering and science.
In the early 1990s, Davis introduced the deterministic approach to stochastic control by means of appropriate Lagrange multipliers. He was awarded the Naylor Prize by the London Mathematical Society in 2002 for his "contributions to stochastic analysis, stochastic control theory and mathematical finance" and delivered a lecture titled Optimal investment with randomly terminating income.
Davis was one of the founding editors of the journal Mathematical Finance. He is the author of three books on stochastic analysis and optimization.
Bibliography
Davis, Mark; Vinter, Richard B (1985). Stochastic modelling and control (1st ed.).
Davis, Mark H; Gabriel Burstein (1992). Deterministic methods in stochastic optimal control (1st ed.).
Davis, Mark H.A. (1993). Markov models and optimization. Chapman & Hall/CRC Monographs on Statistics & Applied Probability (1st ed.). ISBN 9780412314100.
Davis, Mark H; Alison Etheridge (2006). Louis Bachelier's Theory of Speculation. Princeton University Press. ISBN 9781400829309. JSTOR j.ctt7scn4.
Davis, Mark H; Darrell Duffie; Wendell H. Fleming; Steven E. Shreve (1995). Mathematical Finance. Springer.
Davis, Mark H.A. (2005). "Martingale Representation and All That". Advances in Control, Communication Networks, and Transportation Systems. Systems and Control: Foundations & Applications. Birkhauser. pp. 57–68. doi:10.1007/0-8176-4409-1_4. ISBN 978-0-8176-4385-0.
Davis, M. H. A. (1984). "Piecewise-Deterministic Markov Processes: A General Class of Non-Diffusion Stochastic Models". Journal of the Royal Statistical Society. Series B (Methodological). 46 (3): 353–388. doi:10.1111/j.2517-6161.1984.tb01308.x. JSTOR 2345677.
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