UK NONLINEAR NEWS: Issue Two Update

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Kingston University.


THE ROYAL STATISTICAL SOCIETY

TIMSAC (Time Series, Chaos and Applications) Study Group

DISCUSSION MEETING ON CHAOS
Thursday, 14 December 1995, at 4:30 p.m
(Tea at 4:00 p.m.)

The Royal Statistical Society, 12 Errol Street, London EC1
(Nearest Underground stations: Barbican, Moorgate)

DR JAROSLAV STARK
(University College London)
"Takens embedding theorm for stochastic systems"

PROF TOHRU KOHDA
(Kyushu University, Japan)
"Chaotic sequences in secure communications"

SUMMARIES

DR STARK: Takens Embedding Theorem provides the theoretical foundation for many popular techniques in nonlinear time series analysis. Current versions assume that the time series is generated by an autonomous deterministic system. We describe generalizations to forced systems, both for deterministic forcing, and for certain types of stochastic forcing.

PROF KOHDA: A stream cipher system is presented whose running-key sequences are chaotic bit sequences generated by Chebyshev polynomials. It is shown that such a chaotic sequences are ones of unpredictable i.i.d. binary random variables. This cipher system is an easier to implement stream cipher system containing a floating-point microprocessor.

For further information, please contact ...

Dr Catriona M Queen
Institute of Maths and Stats
University of Kent
Canterbury
Kent CT2 7NF UK.
TEL: +44 (0)1227 827702
FAX: +44 (0)1227 475453

C.M.Queen@ukc.ac.uk

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