Overview

As well as being a member of the Mathematics department you can also view my profile on the Environment and Sustainability Institute website.

Post doc at Warwick, Mathematics Institute 1986 - 1988, followed by a post doc at Bath, School of Math. Sci., 1988-1990. Joined Exeter in 1990 as lecturer, promoted to Reader in 1996 and Professor in 1999. Head of Dept. Mathematics 2003-2005, Associate Dean in the Postgraduate Faculty, 2003 - 2005.

Research Interests

• Mathematical systems theory,
• Dynamical systems,
• Control theory,
• Population dynamics,
• Systems biology.

Teaching Interests

• Matrix theory,
• Numerical linear algebra,
• Systems theory,
• Signal processing,
• Mathematical biology.

Other Relevant Information

Qualifications          : BSc, Mathematics, Warwick, PhD, Engineering, Warwick

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Publications

_{Copyright Notice: Any articles made available for download are for personal use only. Any other use requires prior permission of the author and the copyright holder.}

| 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1996 | 1995 | 1993 | 1992 | 1991 | 1990 | 1989 | 1988 | 1987 |

2023

• Bolton K. (2023) Towards a computational tool for the management of Natural Capital.
• Dong S, Das S, Townley S, Thornton A. (2023) Swarm Intelligence Based Drone Flocking Model, 2023 28th International Conference on Automation and Computing (ICAC), 30th Aug - 1st Sep 2023, 2023 28th International Conference on Automation and Computing (ICAC), DOI:10.1109/icac57885.2023.10275209. [PDF]
• Woods R, Menneer T, Wellaway I, Broughton B, Williams AJ, Sharpe RA, Townley S, England M, Taylor T, Morrissey K. (2023) Smartline Environmental Sensor Data and Utility Usage, 2017–2023, DOI:10.5255/UKDA-SN-856596. [PDF]
• Alsubhi M. (2023) Cyber-Natural Control Systems.
• Joshi H, Yavuz M, Townley S, Jha BK. (2023) Stability analysis of a non-singular fractional-order covid-19 model with nonlinear incidence and treatment rate, Physica Scripta, volume 98, no. 4, pages 045216-045216, DOI:10.1088/1402-4896/acbe7a. [PDF]
• Brakes P. (2023) The significance of non-human culture for the conservation of cetaceans and other vertebrates.
• Menneer T, Mueller M, Townley S. (2023) A cluster analysis approach to sampling domestic properties for sensor deployment, Building and Environment, volume 231, pages 110032-110032, article no. 110032, DOI:10.1016/j.buildenv.2023.110032. [PDF]
• Alrashedi Y. (2023) Localised vs. Centralised Management Of Spatially Distributed Populations.
• Guiver C, Rebarber R, Townley S. (2023) Low-gain integral control for a class of discrete-time Lur'e systems with applications to sampled-data control, INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL, volume 33, no. 3, pages 1410-1437, DOI:10.1002/rnc.6455. [PDF]
• Kumar Panda D, Das S, Townley S. (2023) Hyperparameter optimized classification pipeline for handling unbalanced urban and rural energy consumption patterns, Expert Systems with Applications, volume 214, pages 119127-119127, article no. 119127, DOI:10.1016/j.eswa.2022.119127. [PDF]

2022

• Panda DK. (2022) Data Analytics and Control for Stability and Resilience of Future Smart Grids.
• Edholm CJ, Guiver C, Rebarber R, Tenhumberg B, Townley S. (2022) Stabilization by Adaptive Feedback Control for Positive Difference Equations with Applications in Pest Management, SIAM Journal on Control and Optimization, volume 60, no. 4, pages 2214-2245, DOI:10.1137/21m1398240.
• Franco D, Guiver C, Smith P, Townley S. (2022) A switching feedback control approach for persistence of managed resources, Discrete and Continuous Dynamical Systems - B, volume 27, no. 3, DOI:10.3934/dcdsb.2021109.
• Panda DK, Das S, Townley S. (2022) Toward a More Renewable Energy-Based LFC Under Random Packet Transmissions and Delays With Stochastic Generation and Demand, IEEE Transactions on Automation Science and Engineering, volume 19, no. 2, pages 1217-1232, DOI:10.1109/tase.2020.3042570. [PDF]

2021

• Menneer T, Mueller M, Sharpe RA, Townley S. (2021) Modelling mould growth in domestic environments using relative humidity and temperature, Building and Environment, DOI:10.1016/j.buildenv.2021.108583.
• Guiver C, Poppelreiter N, Rebarber R, Tenhumberg B, Townley S. (2021) DYNAMIC OBSERVERS FOR UNKNOWN POPULATIONS, DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES B, volume 26, no. 6, pages 3279-3302, DOI:10.3934/dcdsb.2020232. [PDF]
• Parfett A, Townley S, Allerfeldt K. (2021) AI-based healthcare: a new dawn or apartheid revisited?, AI and Society, volume 36, no. 3, pages 983-999, DOI:10.1007/s00146-020-01120-w.

2020

• Jones O, Ezard THG, Dooley C, Healy K, Hodgson D, Mueller M, Townley S, Salguero-Gómez R. (2020) My family and other animals: Human demography under a comparative cross-species lens, Human Evolutionary Demography, Open Science Framework. [PDF]
• Naik PA, Yavuz M, Qureshi S, Zu J, Townley S. (2020) Modeling and analysis of COVID-19 epidemics with treatment in fractional derivatives using real data from Pakistan, The European Physical Journal Plus, volume 135, no. 10, article no. 795, DOI:10.1140/epjp/s13360-020-00819-5. [PDF]

2019

• Gianuca D, Votier SC, Pardo D, Wood AG, Sherley RB, Ireland L, Choquet R, Pradel R, Townley S, Forcada J. (2019) Sex-specific effects of fisheries and climate on the demography of sexually dimorphic seabirds, J Anim Ecol, volume 88, no. 9, pages 1366-1378, DOI:10.1111/1365-2656.13009. [PDF]
• Argyropoulos A, Townley S, Upton PM, Dickinson S, Pollard AS. (2019) Identifying on admission patients likely to develop acute kidney injury in hospital, BMC Nephrol, volume 20, no. 1, DOI:10.1186/s12882-019-1237-x. [PDF]

2018

• Nicol‑Harper A, Dooley C, Packman D, Mueller M, Bijak J, Hodgson D, Townley S, Ezard T. (2018) Inferring transient dynamics of human populations from matrix non-normality, Population Ecology, DOI:10.1007/s10144-018-0620-y.
• Edholm CJ, Tenhumberg B, Guiver C, Jin Y, Townley S, Rebarber R. (2018) Management of invasive insect species using optimal control theory, Ecological Modelling, volume 381, pages 36-45, DOI:10.1016/j.ecolmodel.2018.04.011.

2017

• Guiver C, Logemann H, Townley S. (2017) Low-gain integral control for multi-input multioutput linear systems with input nonlinearities, IEEE Transactions on Automatic Control, volume 62, no. 9, pages 4776-4783, DOI:10.1109/TAC.2017.2691301.
• Guiver C, Packman D, Townley S. (2017) A necessary condition for dispersal driven growth of populations with discrete patch dynamics, J Theor Biol, volume 424, pages 11-25, DOI:10.1016/j.jtbi.2017.03.030. [PDF]
• Bill A, Guiver C, Logemann H, Townley S. (2017) The converging-input converging-state property for Lur’e systems, Mathematics of Control, Signals, and Systems, volume 29, no. 1, DOI:10.1007/s00498-016-0184-3.
• McDonald JL, Franco M, Townley S, Ezard THG, Jelbert K, Hodgson DJ. (2017) Divergent demographic strategies of plants in variable environments, Nature Ecology & Evolution, volume 1, no. 2, article no. 0029, DOI:10.1038/s41559-016-0029. [PDF]
• Gianuca D, Phillips RA, Townley S, Votier SC. (2017) Global patterns of sex- and age-specific variation in seabird bycatch, Biological Conservation, volume 205, pages 60-76, DOI:10.1016/j.biocon.2016.11.028.

2016

• Guiver C, Hodgson D, Townley S. (2016) A note on the eigenvectors of perturbed matrices with applications to linear positive systems, Linear Algebra and Its Applications, volume 509, pages 143-167, DOI:10.1016/j.laa.2016.07.010.
• Bill A, Guiver C, Logemann H, Townley S. (2016) Stability of nonnegative Lur'e systems, SIAM Journal on Control and Optimization, volume 54, no. 3, pages 1176-1211, DOI:10.1137/140994599.
• Mcdonald JL, Stott I, Townley S, Hodgson DJ. (2016) Transients drive the demographic dynamics of plant populations in variable environments, Journal of Ecology, volume 104, no. 2, pages 306-314, DOI:10.1111/1365-2745.12528.
• Guiver C, Edholm C, Jin Y, Mueller M, Powell J, Rebarber R, Tenhumberg B, Townley S. (2016) Simple Adaptive Control for Positive Linear Systems with Applications to Pest Management, SIAM Journal on Applied Mathematics, volume 76, no. 1, pages 238-275, DOI:10.1137/140996926. [PDF]
• Guiver C, Mueller M, Hodgson D, Townley S. (2016) Robust set-point regulation for ecological models with multiple management goals, J Math Biol, volume 72, no. 6, pages 1467-1529, DOI:10.1007/s00285-015-0919-7. [PDF]

2015

• Ruiz A, Owens DH, Townley S. (2015) L2 approximation properties of recurrent neural networks, 1997 European Control Conference (ECC), DOI:10.23919/ecc.1997.7082360.
• Guiver C, Logemann H, Rebarber R, Bill A, Tenhumberg B, Hodgson D, Townley S. (2015) Integral control for population management, J Math Biol, volume 70, no. 5, pages 1015-1063, DOI:10.1007/s00285-014-0789-4. [PDF]
• Ilchmann A, Townley S. (2015) Adaptive high-gain fast-sampling P-control, ECC 1997 - European Control Conference, pages 1767-1772.
• Guiver C, Dreiwi H, Filannino D-M, Hodgson D, Lloyd S, Townley S. (2015) The role of population inertia in predicting the outcome of stage-structured biological invasions, Math Biosci, volume 265, pages 1-11, DOI:10.1016/j.mbs.2015.04.005. [PDF]

2014

• Kuijper B, Johnstone RA, Townley S. (2014) The evolution of multivariate maternal effects, PLoS Comput Biol, volume 10, no. 4, DOI:10.1371/journal.pcbi.1003550. [PDF]
• Guiver C, Hodgson D, Townley S. (2014) Positive state controllability of positive linear systems, Systems and Control Letters, volume 65, no. 1, pages 23-29, DOI:10.1016/j.sysconle.2013.12.002.
• Eager EA, Guiver C, Hodgson D, Rebarber R, Stott I, Townley S. (2014) Bounds on the dynamics of sink populations with noisy immigration, Theor Popul Biol, volume 92, pages 88-96, DOI:10.1016/j.tpb.2013.12.004. [PDF]

2013

• Townley S, Ezard THG. (2013) A G matrix analogue to capture the cumulative effects of nongenetic inheritance, J Evol Biol, volume 26, no. 6, pages 1234-1243, DOI:10.1111/jeb.12089. [PDF]

2012

• Stott I, Hodgson DJ, Townley S. (2012) popdemo: an R package for population demography using projection matrix analysis, METHODS IN ECOLOGY AND EVOLUTION, volume 3, no. 5, pages 797-802, DOI:10.1111/j.2041-210X.2012.00222.x. [PDF]
• Stott I, Hodgson DJ, Townley S. (2012) Beyond sensitivity: nonlinear perturbation analysis of transient dynamics, METHODS IN ECOLOGY AND EVOLUTION, volume 3, no. 4, pages 673-684, DOI:10.1111/j.2041-210X.2012.00199.x. [PDF]
• Elragig A, Townley S. (2012) A new necessary condition for Turing instabilities, Mathematical Biosciences, volume 239, no. 1, pages 131-138, DOI:10.1016/j.mbs.2012.04.006.
• Li G, Weiss G, Mueller M, Townley S, Belmont MR. (2012) Wave energy converter control by wave prediction and dynamic programming, Renewable Energy, volume 48, pages 392-403, DOI:10.1016/j.renene.2012.05.003.
• Townley S, Rebarber R, Tenhumberg B. (2012) Feedback control systems analysis of density dependent population dynamics, Systems and Control Letters, volume 61, no. 2, pages 309-315, DOI:10.1016/j.sysconle.2011.11.014.
• Rebarber R, Tenhumberg B, Townley S. (2012) Global asymptotic stability of density dependent integral population projection models, Theor Popul Biol, volume 81, no. 1, pages 81-87, DOI:10.1016/j.tpb.2011.11.002. [PDF]

2011

• Stott I, Townley S, Hodgson DJ. (2011) A framework for studying transient dynamics of population projection matrix models, Ecol Lett, volume 14, no. 9, pages 959-970, DOI:10.1111/j.1461-0248.2011.01659.x. [PDF]

2010

• Stott I, Townley S, Carslake D, Hodgson DJ. (2010) On reducibility and ergodicity of population projection matrix models, Methods in Ecology and Evolution, volume 1, pages 242-252, DOI:10.1111/j.2041-210X.2010.00032.x.
• Stott I, Franco M, Carslake D, Townley S, Hodgson D. (2010) Boom or bust? A comparative analysis of transient population dynamics in plants, Journal of Ecology, volume 98, no. 2, pages 302-311, DOI:10.1111/j.1365-2745.2009.01632.x.

2009

• Carslake D, Townley S, Hodgson DJ. (2009) Predicting the impact of stage-specific harvesting on population dynamics, J Anim Ecol, volume 78, no. 5, pages 1076-1085, DOI:10.1111/j.1365-2656.2009.01569.x. [PDF]
• Ke Z, Logemann H, Townley S. (2009) Adaptive sampled-data integral control of stable infinite-dimensional linear systems, Systems and Control Letters.
• Orosz G, Ashwin P, Townley S. (2009) Learning of spatiotemporal codes in a coupled oscillator system, IEEE Transactions on Neural Networks.
• Carslake D, Townley S, Hodgson DJ. (2009) Patterns and rules for sensitivity and elasticity in population projection matrices, Ecology, volume 90, no. 11, pages 3258-3267, DOI:10.1890/08-1188.1. [PDF]
• Lubben J, Boeckner D, Rebarber R, Townley S, Tenhumberg B. (2009) Parameterizing the growth-decline boundary for uncertain population projection models, THEOR POPUL BIOL, volume 75, no. 2-3, pages 85-97.

2008

• Townley S, Hodgson DJ. (2008) Erratum et addendum: Transient amplification and attenuation in stage-structured population dynamics, Journal of Applied Ecology, volume 45, no. 6, pages 1836-1839, DOI:10.1111/j.1365-2664.2008.01562.x.
• Townley S, Hodgson DJ. (2008) Predicting transient amplification in perturbed ecological systems (vol 44, pg 1243, 2007), JOURNAL OF APPLIED ECOLOGY, volume 45, no. 6, pages 1836-1839, DOI:10.1111/j.1365-2664.2008.01562.x. [PDF]
• McCarthy D, Townley S, Hodgson D. (2008) On second order sensitivity for stage-based population projection matrix models, Theor Popul Biol, volume 74, no. 1, pages 68-73, DOI:10.1016/j.tpb.2008.04.008. [PDF]
• Macclean,M.M,Carslake,D.J., Evans MR, Townley S, Hodgson DJ. (2008) The usefulness of sensitivity analysis for predicting the effects of cat predation on the population dynamics of their avian prey, IBIS, volume 150, pages 100-113.
• Carslake D, Townley S, Hodgson DJ. (2008) Nonlinearity in eigenvalue-perturbation curves of simulated population projection matrices, Theor Popul Biol, volume 73, no. 4, pages 498-505, DOI:10.1016/j.tpb.2008.03.004. [PDF]

2007

• Deines A, Peterson E, Boeckner D, Boyle J, Keighley A, Kogut J, Lubben J, Rebarber R, Ryan R, Tenhumberg B. (2007) Robust population management under uncertainty for structured population models, Ecol Appl, volume 17, no. 8, pages 2175-2183, DOI:10.1890/06-1090.1. [PDF]
• Ashwin P, Orosz G, Wordsworth J, Townley S. (2007) Dynamics on networks of cluster states for globally coupled phase oscillators, SIAM Journal on Applied Dynamical Systems, volume 6, pages 728-758. [PDF]
• Orosz G, Ashwin P, Wordsworth J, Townley S. (2007) Cluster synchronization, switching and spatio-temporal coding in a phase oscillator network, Proceedings of Applied Mathematics and Mechanics, volume 7, pages 1030703-1030704. [PDF]
• Orosz G, Ashwin P, Wordsworth J, Townley S. (2007) Cluster synchronization, switching and spatio-temporal coding in a phase oscillator network, Proceedings of Applied Mathematics and Mechanics, volume 7, pages 1030703-1030704. [PDF]
• Hodgson DJ, Carslake DJ, Kellie-Smith O, Townley S. (2007) Predicting transient amplification in disturbed natural systems, Journal of Applied Ecology, volume 44, no. 6, pages 1243-1251, DOI:10.1111/j.1365-2664.2007.01333.x.

2006

• Townley S. (2006) WELL‐POSED LINEAR SYSTEMS (Encyclopedia of Mathematics and its Applications 103), Bulletin of the London Mathematical Society, volume 38, no. 2, pages 351-352, DOI:10.1112/s0024609306213821.
• Hodgson D, Townley S, McCarthy D. (2006) Robustness: predicting the effects of life history perturbations on stage-structured population dynamics, Theor Popul Biol, volume 70, no. 2, pages 214-224, DOI:10.1016/j.tpb.2006.03.004. [PDF]
• Rebarber R, Townley S. (2006) Robustness with respect to sampling for stabilization of Riesz spectral systems, IEEE Transactions on Automatic Control, volume 51, pages 1519-1522.

2005

• Ilchmann A, Townley S, Thuto M. (2005) Adaptive sampled-data tracking for input-constrained exothermic chemical reaction models, Systems and Control Letters, volume 54, no. 12, pages 1149-1161, DOI:10.1016/j.sysconle.2005.04.004.
• Townley SB, Rebarber R, Logemann H. (2005) Generalized sampled-data stabilization of well-posed linear infinite-dimensional systems, SIAM Journal on Control and Optimization, volume 44, no. 4, pages 1345-1369, DOI:10.1137/S0363012903434340.
• Townley SB, Lamooki JRR, Osinga HM. (2005) Bifurcations and limit dynamics in adaptive control systems, International Journal of Bifurcation and Chaos, volume 15, no. 5, pages 1641-1664, DOI:10.1142/S021812740501296X.
• Emirsajlow Z, Townley S. (2005) On application of the implemented semigroup to a problem arising in optimal control, International Journal of Control, volume 78, no. 4, pages 298-310, DOI:10.1080/00207170500093960.

2004

• Hodgson DJ, Townley S. (2004) Linking management changes to population dynamic responses: the transfer function of a projection matrix perturbation, Journal of Applied Ecology, volume 41, no. 6, pages 1155-1161, DOI:10.1111/j.0021-8901.2004.00959.x.
• Thuto, M.V., Ilchmann, A.. (2004) Input constrained adaptive l-tracking with applications to exothermic chemical reactor models, SIAM Journal on Control and Optimization, volume 43, no. 1, pages 154-173.
• Osinga HM, Lamooki GRR, Townley S. (2004) Numerical approximations of strong (un)stable manifolds, Dynamical Systems, volume 19, pages 195-215.

2003

• Lamooki GRR, Townley S. (2003) Partial stability in back-stepping and adaptive control, "'Proceedings of the 9th IEEE International Conference on Methods and Models in Automation and Robotics, August 2003'", volume 1, pages 491-496.
• Ozdemir N, Townley S. (2003) Integral-control by variable sampling based on steady state data, Automatica, volume 39, pages 135-140.
• Logemann, H.. (2003) Adaptive low-gain integral control of multivariable well-posed linear systems, SIAM Journal on Control and Optimization, volume 41, no. 6, pages 1722-1732.
• Townley SB, Crauel H, Matsikis I. (2003) Noise assisted high gain stabilization: Almost surely or in second mean, SIAM Journal on Control and Optimization, volume 42, no. 5, pages 1834-1853, DOI:10.1137/S0363012901393900.
• Townley TY, Townley S, Owens DH, Yu H. (2003) Norm optimal iterative learning plus prediction control, "Proceedings of the 9th IEEE International Conference on Methods and Models in Automation and Robotics, August 2003", volume 1, pages 539-544.
• Townley SB, Logemann H, Rebarber R. (2003) Stability of infinite-dimensional sampled-data systems, Transactions of the American Mathematical Society, volume 355, no. 8, pages 3301-3328, DOI:10.1090/S0002-9947-03-03142-8.

2002

• Rebarber R, Townley S. (2002) Nonrobustness of closed-loop stability for infinite-dimensional systems under sample and hold, IEEE Transactions on Automatic Control, volume 47, no. 8, pages 1381-1385, DOI:10.1109/TAC.2002.801189.

2001

• Ilchmann A, Thuto M, Townley S. (2001) λ-Tracking for exothermic chemical reactions with saturating inputs, 2001 European Control Conference, ECC 2001, pages 1928-1933, DOI:10.23919/ecc.2001.7076204.
• Rebarber R, Townley S. (2001) Robustness of closed-loop stability for infinite-dimensional systems under sample and hold - counterexamples, "Proc. Conference on Decision and Control, Sydney, December 2000", pages 3290-3295.
• Ilchmann A, Thuto MV, Townley S. (2001) Lambda-tracking for exothermic chemical reactions with saturating inputs, "Proc. European Control Conference, Porto, September 2001", pages 1928-1933.
• Ozdemir N, Townley S. (2001) Variable sampling integral control of infinite-dimensional systems, "'Proc. Conference on Decision and Control, Sydney, December 2000'", pages 3284-3289.

2000

• Ozdemir N, Townley S. (2000) Variable sampling integral control of infinite-dimensional systems, Proceedings of the 39th IEEE Conference on Decision and Control (Cat. No.00CH37187), Proceedings of the 48h IEEE Conference on Decision and Control (CDC) held jointly with 2009 28th Chinese Control Conference, volume 4, DOI:10.1109/cdc.2000.912205.
• Townley S, Ilchmann A, Weiss MG, McClements W, Ruiz AC, Owens DH, Pratzel-Wolters D. (2000) Existence and learning of oscillations in recurrent neural networks, IEEE Trans Neural Netw, volume 11, no. 1, pages 205-214, DOI:10.1109/72.822523. [PDF]
• Lefèvre L, Georges D, Emirsjlow Z, Townley S. (2000) Discussion on:: 'From PDEs with boundary control to the abstract state equation with an unbounded input operator:: A tutorial' by Z.!Emirsjlow and S.!Townley, EUROPEAN JOURNAL OF CONTROL, volume 6, no. 1, pages 50-53, DOI:10.1016/S0947-3580(00)70909-5. [PDF]
• Emirsjlow Z, Townley S. (2000) From PDEs with boundary control to the abstract state equation with an unbounded input operator: A tutorial, European Journal of Control, volume 6, no. 1, pages 27-49, DOI:10.1016/S0947-3580(00)70908-3.
• Rebarber R, Townley S. (2000) Robustness of closed-loop stability for infinite dimensional systems under sample and hold - Counterexamples, Proceedings of the IEEE Conference on Decision and Control, volume 4, pages 3290-3294.

1999

• Townley S. (1999) An example of a globally stabilizing adaptive controller with a generically destabilizing parameter estimate, IEEE Transactions on Automatic Control, volume 44, no. 11, pages 2238-2241, DOI:10.1109/9.802953.
• Rebarber R, Townley S. (1999) Robustness with respect to delays for exponential stability of distributed parameter systems, SIAM Journal on Control and Optimization, volume 37, no. 1, pages 230-244, DOI:10.1137/s0363012996312453.
• Ilchmann A, Townley S. (1999) Adaptive high-gain λ-tracking with variable sampling rate, Systems and Control Letters, volume 36, no. 4, pages 285-293, DOI:10.1016/S0167-6911(98)00101-7.
• Logemann H, Ryan EP, Townley S. (1999) Integral control of linear systems with actuator nonlinearities: Lower bounds for the maximal regulating gain, IEEE Transactions on Automatic Control, volume 44, no. 6, pages 1315-1319, DOI:10.1109/9.769399.
• Ilchmann A, Townley S. (1999) Adaptive sampling control of high-gain stabilizable systems, IEEE Transactions on Automatic Control, volume 44, no. 10, pages 1961-1966, DOI:10.1109/9.793786.

1998

• Ruiz A, Owens DH, Townley S. (1998) Existence, learning, and replication of periodic motions in recurrent neural networks, IEEE Trans Neural Netw, volume 9, no. 4, pages 651-661, DOI:10.1109/72.701178. [PDF]
• Logemann H, Ryan EP, Townley S. (1998) Low-gain integral control of linear distributed parameter systems subject to input saturation, Proceedings of the IEEE Conference on Decision and Control, volume 1, pages 921-926.
• Logemann H, Ryan EP, Townley S. (1998) Integral control of infinite-dimensional linear systems subject to input saturation, SIAM Journal on Control and Optimization, volume 36, no. 6, pages 1940-1961, DOI:10.1137/S0363012996314142.
• Rebarber R, Townley S. (1998) Generalized sampled data feedback control of distributed parameter systems, Systems and Control Letters, volume 34, no. 5, pages 229-240, DOI:10.1016/S0167-6911(98)00011-5.

1997

• Curtain RF, Townley S, Logemann H, Zwart H. (1997) Well-posedness, stabilizability, and admissibility for Pritchard-Salamon systems, Journal of Mathematical Systems, Estimation, and Control, volume 7, no. 4, pages 439-476.
• Townley S. (1997) Guest editorial, IMA Journal of Mathematical Control and Information, volume 14, no. 1, pages 1-2, DOI:10.1093/imamci/14.1.1.
• Ilchmann A, Townley S. (1997) Adaptive high-gain fast-sampling P-control, ECC 1997 - European Control Conference, pages 1767-1772, DOI:10.23919/ecc.1997.7082359.
• Logemann H, Townley S. (1997) Adaptive control of infinite-dimensional systems without parameter estimation: An overview, IMA Journal of Mathematical Control and Information, volume 14, no. 2, pages 175-206, DOI:10.1093/imamci/14.2.175.
• Logemann H, Townley S. (1997) Low-gain control of uncertain regular linear systems, SIAM Journal on Control and Optimization, volume 35, no. 1, pages 78-116, DOI:10.1137/S0363012994275920.
• Logemann H, Townley S. (1997) Discrete-time low-gain control of uncertain infinite-dimensional systems, IEEE Transactions on Automatic Control, volume 42, no. 1, pages 22-37, DOI:10.1109/9.553685.
• Logemann H, Townley S. (1997) Adaptive integral control of time-delay systems, IEE Proceedings: Control Theory and Applications, volume 144, no. 6, pages 531-536, DOI:10.1049/ip-cta:19971526.
• Rebarber R, Townley S. (1997) Stabilization of distributed parameter systems by piecewise polynomial control, IEEE Transactions on Automatic Control, volume 42, no. 9, pages 1254-1257, DOI:10.1109/9.623087.

1996

• Ruiz A, Owens DH, Townley S. (1996) Learning periodic signals with recurrent neural, IEE Conference Publication, no. 427 /2, pages 1131-1136.
• Logemann H, Townley S. (1996) Low gain control of uncertain distributed parameter systems: Part 1 & Part 2, IEE Colloquium (Digest), no. 139.
• Townley S, Kamstra M. (1996) Integral control with saturating input, IEE Conference Publication, no. 427 /2, pages 805-808, DOI:10.1049/cp:19960655.
• Triantafillidis S, Leach JA, Owens DH, Townley S. (1996) Qualitative dynamics, root-loci and asymptotic structure of universal adaptive stabilizers, IMA Journal of Mathematical Control and Information, volume 13, no. 3, pages 251-278, DOI:10.1093/imamci/13.3.251.
• Townley S. (1996) Topological aspects of universal adaptive stabilization, SIAM Journal on Control and Optimization, volume 34, no. 3, pages 1044-1070, DOI:10.1137/S0363012992231951.
• Logemann H, Townley S. (1996) The effect of small delays in the feedback loop on the stability of neutral systems, Systems and Control Letters, volume 27, no. 5, pages 267-274, DOI:10.1016/0167-6911(96)00002-3.
• Emirsajlow Z, Pritchard AJ, Townley S. (1996) On structured perturbations for two classes of linear infinite-dimensional systems, Dynamics and Control, volume 6, no. 3, pages 227-261, DOI:10.1007/BF02169488.
• Ruiz A, Owens DH, Townley S. (1996) Existence of limit cycles in recurrent neural networks, IEEE International Symposium on Industrial Electronics, volume 1, pages 104-108.

1995

• Leach JA, Triantafillidis S, Owens DH, Townley S. (1995) Dynamics of universal adaptive stabilization: computational and analytical studies, Control, theory and advanced technology, volume 10, no. 4 pt 4, pages 1689-1716.
• Townley S, Owens DH, Triantafillidis S, Leach JA. (1995) Local and limiting analysis of stable universal adaptive dynamics, Proceedings of the IEEE Conference on Decision and Control, volume 3, pages 2334-2339.
• Townley S. (1995) Simple adaptive stabilization of output feedback stabilizable distributed parameter systems, Dynamics and Control, volume 5, no. 2, pages 107-123, DOI:10.1007/BF01973944.
• Rebarber R, Townley S. (1995) Robustness and continuity of the spectrum for uncertain distributed parameter systems, Automatica, volume 31, no. 11, pages 1533-1546, DOI:10.1016/0005-1098(95)00088-E.
• Triantafillidis S, Leach JA, Owens DH, Townley S. (1995) Limit systems, limit gains and non-generic behaviours arising in adaptive stabilizing control, Dynamics and Stability of Systems, volume 10, no. 3, pages 233-254, DOI:10.1080/02681119508806206.
• Townley S. (1995) Topological aspects of universal adaptive stabilization, Proceedings of the IEEE Conference on Decision and Control, volume 2, pages 1894-1899.
• Leach JA, Triantafillidis S, Owens DH, Townley S. (1995) The dynamics of universal adaptive stabilization: Computational and analytical studies, CONTROL-THEORY AND ADVANCED TECHNOLOGY, volume 10, no. 4, pages 1689-1716. [PDF]
• Logemann H, Townley S. (1995) Adaptive low-gain sampled-data control of DPS, PROCEEDINGS OF THE 34TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, pages 2946-2947. [PDF]

1993

• RYAN EP, TOWNLEY S. (1993) NONLINEAR UNCERTAIN SYSTEMS AND ROBUSTNESS OPTIMIZATION, INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL, volume 3, no. 3, pages 241-260, DOI:10.1002/rnc.4590030305. [PDF]
• Ilchmann A, Townley S. (1993) Simple adaptive stabilization of high-gain stabilizable systems, Systems and Control Letters, volume 20, no. 3, pages 189-198, DOI:10.1016/0167-6911(93)90060-J.
• Hicks AC, Townley S. (1993) On exact solutions of differential equations arising in universal adaptive stabilization, Systems and Control Letters, volume 20, no. 2, pages 117-129, DOI:10.1016/0167-6911(93)90024-Z.
• TOWNLEY S. (1993) ROBUST STABILITY RADII FOR DISTRIBUTED-PARAMETER SYSTEMS - A SURVEY, ANALYSIS AND OPTIMIZATION OF SYSTEMS : STATE AND FREQUENCY DOMAIN APPROACHES FOR INFINITE-DIMENSIONAL SYSTEMS, volume 185, pages 302-313. [PDF]

1992

• TOWNLEY S. (1992) GENERIC PROPERTIES OF UNIVERSAL ADAPTIVE STABILIZATION SCHEMES, PROCEEDINGS OF THE 31ST IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, pages 3630-3631. [PDF]

1991

• Townley S, Owens DH. (1991) A note on the problem of multivariable adaptive tracking, IMA Journal of Mathematical Control and Information, volume 8, no. 4, pages 389-395, DOI:10.1093/imamci/8.4.389.
• Pritchard AJ, Townley S. (1991) Robustness optimization for uncertain infinite-dimensional systems with unbounded inputs, IMA Journal of Mathematical Control and Information, volume 8, no. 2, pages 121-133, DOI:10.1093/imamci/8.2.121.
• Townley S, Ryan EP. (1991) On the supremally regulated complex stability radius as a real robustness measure, Systems and Control Letters, volume 16, no. 4, pages 249-259, DOI:10.1016/0167-6911(91)90012-4.

1990

• Pritchard AJ, Townley S. (1990) ROBUSTNESS OPTIMIZATION FOR ABSTRACT, UNCERTAIN CONTROL SYSTEMS: UNBOUNDED INPUTS AND PERTURBATIONS, Control of Distributed Parameter Systems 1989, Elsevier, 117-121, DOI:10.1016/b978-0-08-037036-1.50025-2.
• TOWNLEY S. (1990) Book Reviews, IMA Journal of Mathematical Control and Information, volume 7, no. 4, pages 396-397, DOI:10.1093/imamci/7.4.396.
• PRITCHARD AJ, TOWNLEY S. (1990) REAL STABILITY RADII FOR INFINITE DIMENSIONAL SYSTEMS, ROBUST CONTROL OF LINEAR SYSTEMS AND NONLINEAR CONTROL, volume 4, pages 635-646. [PDF]
• Ryan EP, Townley S. (1990) Non-linear systems: Robustness optimization and universal adaptive stabilization, Proceedings of the IEEE Conference on Decision and Control, volume 6, pages 3228-3229, DOI:10.1109/cdc.1990.203387.
• HINRICHSEN D, PRITCHARD AJ, TOWNLEY SB. (1990) RICCATI EQUATION APPROACH TO MAXIMIZING THE COMPLEX STABILITY RADIUS BY STATE FEEDBACK, INTERNATIONAL JOURNAL OF CONTROL, volume 52, no. 4, pages 769-794, DOI:10.1080/00207179008953567. [PDF]
• Townley S. (1990) Stability radius optimization: A geometric approach, Systems and Control Letters, volume 14, no. 3, pages 199-207, DOI:10.1016/0167-6911(90)90014-L.

1989

• Pritchard AJ, Townley S. (1989) Robustness Optimization for Abstract, Uncertain Control Systems: Unbounded Inputs and Perturbations, IFAC-PapersOnLine, volume 22, no. 4, pages 117-121, DOI:10.1016/s1474-6670(17)53529-6.
• Pritchard AJ, Townley S. (1989) Robustness of linear systems, Journal of Differential Equations, volume 77, no. 2, pages 254-286, DOI:10.1016/0022-0396(89)90144-7.

1988

• Pritchard AJ, Townley S. (1988) Robust compensator design via structured stability radii, Systems and Control Letters, volume 11, no. 1, pages 33-37, DOI:10.1016/0167-6911(88)90108-9.

1987

• Chapman MJ, Pritchard AJ, Townley SB. (1987) Modelling linear distributed parameter systems, Systems Science, volume 13, no. 3-4, pages 37-50.
• Pritchard AJ, Townley S. (1987) ROBUSTNESS OF INFINITE DIMENSIONAL SYSTEMS, IFAC Proceedings Series, no. 3, pages 459-462.
• PRITCHARD AJ, TOWNLEY S. (1987) A STABILITY RADIUS FOR INFINITE DIMENSIONAL SYSTEMS, LECTURE NOTES IN CONTROL AND INFORMATION SCIENCES, volume 102, pages 272-291. [PDF]

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