Associate Professor Winston Sweatman staff profile picture

Contact details +64 (09) 414 0800  ext. 43601

Associate Professor Winston Sweatman

Associate Professor

Institute of Natural and Mathematical Sciences

Winston has worked in various areas of mathematics, in particular applying mathematical modelling.  He is a former President of the New Zealand Mathematical Society  (2013-2015). In his work in  stellar dynamics and celestial mechanics, he studies problems relating to a number of gravitationally attracting masses. He  is also active in mathematics-in-industry study groups, completing his 22nd in 2018. As well as study groups in New Zealand and Australia, he has contributed to  study groups in Canada, China, Ireland and Japan.  He is keen on sport and  won a Commonwealth Games silver medal at judo at Auckland 1990,  competing  for Scotland. 

Professional

Prizes and Awards

  • Best Poster ECMI 2008 (European Consortium for Mathematics in Industry 2008 conference), University College, London. The poster, 'A model for crop spray adhesion, bounce and shatter at a leaf', concerned maths-in-industry research and was joint work with G.N.Mercer of University of New South Wales and W.A.Forster of Plant Protection Chemistry NZ. A paper based on the poster was published in the conference proceedings. - (2008)
  • 00 - (1900)

Research Expertise

Research Interests

Mathematics: stellar dynamics, mathematics-in-industry, celestial mechanics, mathematical modelling, mathematical astronomy

Thematics

21st Century Citizenship

Area of Expertise

Field of research codes
Applied Mathematics (010200): Mathematical Aspects of Classical Mechanics, Quantum Mechanics and Quantum Information Theory (010503): Mathematical Physics (010500): Mathematical Sciences (010000): Numerical and Computational Mathematics (010300)

Research Outputs

Journal

Sweatman, WL. (2014). Orbits near central configurations for four equal masses. Celestial Mechanics and Dynamical Astronomy. 119(3-4), 379-395
[Journal article]Authored by: Sweatman, W.
Sivasankaran, A., Steves, BA., & Sweatman, WL. (2010). A global regularisation for integrating the Caledonian symmetric four-body problem. Celestial Mechanics and Dynamical Astronomy. 107(1), 157-168
[Journal article]Authored by: Sweatman, W.
Sweatman, WL., Psaltis, S., Dargaville, S., Fitt, A., Gibb, T., Lawson, B., . . . Marion, K. (2014). The mathematical modelling of cheese ripening. ANZIAM Journal. 55, M1-M38
[Journal article]Authored by: Sweatman, W.
Pritchard, G., Sweatman, WL., Mohammadian, G., & Kilby, P. (2012). A simplified financial transmission rights auction in the context of the New Zealand electricity grid. ANZIAM Journal. 54(SUPPL)
[Journal article]Authored by: Sweatman, W.
Zhao, Y., Bond, IA., & Sweatman, WL. (2014). An Android application for receiving notifications of astrophysical transient events. Astronomy and Computing. 6, 19-27
[Journal article]Authored by: Bond, I., Sweatman, W.
Ali, A., McKibbin, R., & Sweatman, WL. (2012). Simplified modelling of pollutant transport in stratified groundwater aquifers. iEMSs 2012 - Managing Resources of a Limited Planet: Proceedings of the 6th Biennial Meeting of the International Environmental Modelling and Software Society. , 2739-2746
[Journal article]Authored by: McKibbin, R., Sweatman, W.
Hocking, GC., Sweatman, WL., Fitt, AD., & Breward, C. (2011). Deformations during jet-stripping in the galvanizing process. Journal of Engineering Mathematics. 70(1-3), 297-306
[Journal article]Authored by: Sweatman, W.
Sweatman, WL., Wake, GC., & Cooper, H. (2010). Using influence diagrams as a tool for decision making. ANZIAM Journal. 52
[Journal article]Authored by: Sweatman, W., Wake, G.
Barry, SI., & Sweatman, WL. (2008). Modelling heat transfer in steel coils. ANZIAM Journal. 50(SUPPL.)
[Journal article]Authored by: Sweatman, W.
Sweatman, WL., Barry, SI., & McGuinness, M. (2012). Heat transfer during annealing of steel coils. Progress in Industrial Mathematics at ECMI 2010. Mathematics in Industry 17, 303-309
[Journal article]Authored by: Sweatman, W.
Senaratne, GG., Keam, RB., Sweatman, WL., Wake, GC., & Simpkin, RA. (2009). Inverse method for the detection of a foreign object using microwave measurements. IET Science, Measurement and Technology. 3(2), 148-158
[Journal article]Authored by: Sweatman, W., Wake, G.
Pimpunchat, B., Sweatman, WL., Wake, GC., Triampo, W., & Parshotam, A. (2009). A mathematical model for pollution in a river and its remediation by aeration. Applied Mathematics Letters. 22(3), 304-308
[Journal article]Authored by: Sweatman, W., Wake, G.
Lim, LL., Sweatman, WL., & McKibbin, R. (2008). A simple deterministic model for volcanic ashfall deposition. ANZIAM Journal. 49(3), 325-336
[Journal article]Authored by: McKibbin, R., Sweatman, W.
Senaratne, GG., Keam, RB., Sweatman, WL., & Wake, GC. (2007). Solutions to the inverse problem in a two-dimensional model for microwave breast tumour detection. International Journal of Intelligent Systems Technologies and Applications. 3(1-2), 133-148
[Journal article]Authored by: Sweatman, W., Wake, G.
Lim, LL., Sweatman, WL., McKibbin, R., & Connor, CB. (2008). Tephra fallout models: The effect of different source shapes on isomass maps. Mathematical Geosciences. 40(2), 147-157
[Journal article]Authored by: McKibbin, R., Sweatman, W.
Senaratne, GG., Keam, RB., Sweatman, WL., & Wake, GC. (2007). Solutions of inverse problems with potential application for breast tumour detection using microwave measurements. Computational and Mathematical Methods in Medicine. 8(4), 245-261
[Journal article]Authored by: Sweatman, W., Wake, G.
Sweatman, WL. (2007). Full ionization in binary-binary encounters of equal masses with a small positive total energy. Monthly Notices of the Royal Astronomical Society. 377(1), 459-464
[Journal article]Authored by: Sweatman, W.
Senaratne, GG., Keam, RB., Sweatman, WL., & Wake, GC. (2007). Solutions to the inverse problem in a two-dimensional model for microwave breast tumour detection. International Journal of Intelligent Systems Technologies and Applications. 3(1/2), 133-148 Retrieved from http://www.inderscience.com/info/inarticle.php?artid=14131
[Journal article]Authored by: Sweatman, W., Wake, G.
Sweatman, WL. (2006). A family of symmetrical schubart-like interplay orbits and their stability in the one-dimensional four-body problem. Celestial Mechanics and Dynamical Astronomy. 94(1), 37-65
[Journal article]Authored by: Sweatman, W.

Conference

Kamoda, K., Rong, Z., Ishimaru, K., Sasaki, T., Thai, LT., Meldrano, F., . . . Triadis, D. (2016). Description of hererogeneous rock pore structures using mathematical models. Mathematics-for-Industry Lecture Note Series. Vol. 71 (pp. 38 - 49).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Sweatman, WL., Mercer, G., Boland, J., Cusimano, N., Greenwood, A., Harley, K., . . . Pettet, G. (2016). Seaweed cultivation and the remediation of by-products from ethanol production: a glorious green growth. ANZIAM Journal : Electronic Supplement. Vol. 56 (pp. M1 - M29).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Sweatman, WL., McGree, J., Carstens, CJ., Foster, KJ., Liu, S., Tierney, N., . . . Zaitouny, A. (2016). Visualisation and statistical modelling techniques for the management of inventory stock levels. ANZIAM Journal : Electronic Supplement. Vol. 57 (pp. M130 - M162). : 12th Biennial Engineering Mathematics and Applications Conference (EMAC2015)
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Fullard, L., Sweatman, W., Wilkins, M., Cater, J., Kueh, CSL., Lau, J., . . . Wang, Y. (2016). Eliminating early cut-offs and estimating cycle end time in a tumble dryer. In G. Wake, & AJ. Roberts (Eds.) ANZIAM Journal - Proceedings of the 2015 Mathematics and Statistics in Industry NZ Study Group, MISG-2015. Vol. 57 (pp. M237 - M267). : 2015 Mathematics and Statistics in Industry NZ Study Group, MISG-2015
[Conference Paper in Published Proceedings]Authored by: Fullard, L., Kueh, C., Sweatman, W., Wilkins, M.Contributed to by: Kueh, C.
Sweatman, WL. (2015). Mathematics-in-industry study group projects from Australia and New Zealand in the past decade. Springer Proceedings in Mathematics and Statistics. Vol. 117 (pp. 433 - 438).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Sweatman, WL. (2015). Symmetric four-body problems. Springer Proceedings in Mathematics and Statistics. Vol. 117 (pp. 439 - 444).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Sweatman, WL., Psaltis, S., Dargaville, S., & Fitt, A. (2017). A mathematical model of the ripening of cheddar cheese. In G. Russo, V. Capasso, G. Nicosia, & V. Romano (Eds.) Progress in Industrial Mathematics at ECMI 2014. Vol. 22 (pp. 1021 - 1027). : European Consortium for Mathematics in Industry
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
McKibbin, R., Ali, A., & Sweatman, WL. (2014). A simplified model for transport in aquifers. In K. Vafai, A. Began, A. Nakayama, & O. Manca (Eds.) Proceedings of the 5th International Conference on Porous Media and its Applications in Science and Engineering. (pp. 1 - 6). http://dc.engconfintl.org/porous_media_V/56: 5th International Conference on Porous Media and their Applications in Science
[Conference Paper in Published Proceedings]Authored by: McKibbin, R., Sweatman, W.
Sweatman, WL. (2014). Mathematics in industry study group (MISG) steel projects from Australia and New Zealand. In M. Wakayama, RS. Anderssen, J. Cheng, Y. Fukumoto, R. McKibbin, K. Polthier, . . . K-C. Toh (Eds.) Mathematics for Industry 1, The impact of applications on mathematics, Proceedings of the forum of Mathematics for Industry 2013. Vol. 1 (pp. 307 - 322). Tokyo, Japan
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.Edited by: McKibbin, R.
Ali, A., Sweatman, WL., & McKibbin, R. (2014). Pollution transport and its alleviation in groundwater aquifers. In M. Fontes, M. Gunther, & N. Marheineke (Eds.) Progress in Industrial Mathematics at ECMI 2012, Mathematics in Industry 19. Vol. Mathematics in Industry (pp. 53 - 58). : 17th European Conference on Mathematics for Industry, ECMI2012
[Conference Paper in Published Proceedings]Authored by: McKibbin, R., Sweatman, W.
Sweatman, WL. (2014). Symmetric Four-mass Schubart-like Systems. Proceedings of the International Astronomical Union. Vol. 9 (pp. 106 - 107).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Sweatman, WL., Wake, GC., Fullard, L., & Bruna, M. (2011). Recovering vanadium during the production of steel from iron sand. ANZIAM Journal. Vol. 53
[Conference Paper in Published Proceedings]Authored by: Fullard, L., Sweatman, W., Wake, G.
Hocking, GC., Sweatman, WL., Fitt, AD., & Breward, C. (2012). Deformations arising during air-knife stripping in the galvanisation of steel. In M. Gunther, A. Bartel, M. Brunk, S. Schops, & M. Striebel (Eds.) Progress in Industrial Mathematics at ECMI 2010, Mathematics in Industry 17. (pp. 311 - 317). : 16th Europeon Conference on Mathematics for Industry
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Ali, A., Mckibbin, R., & Sweatman, WL. (2011). Fluid Flow and Solute Transport in Unevenly-stratified Groundwater Aquifers. AIP Conference Proceedings. Vol. 1453 (pp. 11 - 16).
[Conference Paper in Published Proceedings]Authored by: McKibbin, R., Sweatman, W.
Sweatman, WL., Barry, SI., & McGuiness, M. (2010). Heat transfer during steel coil annealing. Poster session presented at the meeting of The 16th European Conference on Mathematics for Industry. Wuppertal, Germany
[Conference Poster]Authored by: Sweatman, W.
Senaratne, G., Sweatman, WL., & Wake, GC. (2010). Inverse solutions to microwave scattering problem for breast tumor detection and size estimation. The 2nd International Conference on RF and Signal Processing Systems (RSPS - 2010). (pp. 411 - 416).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W., Wake, G.
McGuinness, M., Sweatman, WL., Baowan, D., & Barry, SI. (2009). Annealing steel coils. In T. Marchant, M. Edwards, & G. Mercer (Eds.) The 2008 Mathematics and Statistics in Industry Study Group (MISG2008). (pp. 61 - 80).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Hocking, GC., Sweatman, WL., Roberts, ME., & Fitt, A. (2010). Coating deformations in the continuous hot-dipped galvanizing process. In T. Marchant, M. Edwards, & G. Mercer (Eds.) Mathematics and Statistics in Industry Study Group (MISG2009). (pp. 75 - 89).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Hocking, GC., Sweatman, WL., & Roberts, ME. (2009). Coating deformation in the jet stripping process (bluescope steel research). In T. Marchant, & M. Edwards (Eds.) Mathematics and Statistics in Industry Study Group (MISG2009), Industry Problem Reports: Equation-free Summaries. (pp. 9 - 10).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Bond, IA., Lin, W., & Sweatman, WL. (2008). Delivering machine readable microlensing data across the internet. In E. Kerins, S. Mao, N. Rattenbury, & L. Wyrzykowski (Eds.) The Manchester Microlensing Conference: The 12th International Conference and ANGLES Microlensing Workshop. Vol. PoS(GMC8)047Online: The Manchester Microlensing Conference: The 12th International Conference and ANGLES Microlensing Workshop
[Conference Paper in Published Proceedings]Authored by: Bond, I., Sweatman, W.
Mercer, GN., Sweatman, WL., & Forster, WA. (2010). A model for spray droplet adhesion, bounce or shatter at a crop leaf surface.. In AD. Fitt, J. Norbury, H. Ockendon, & E. Wilson (Eds.)Vol. 15 (pp. 945 - 951). Berlin-Heidelberg: Progress in Industrial Mathematics at ECMI 2008
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Sweatman, WL., Pritchard, G., Whiten, B., Camden, M., & Nan, K. (2010). Optimising for Wind Power Contributions in an Electricity Grid. In AD. Fitt, J. Norbury, H. Ockendon, & RE. Wilson (Eds.) PROGRESS IN INDUSTRIAL MATHEMATICS AT ECMI 2008. Vol. 15 (pp. 1039 - 1045). : 15th European Conference on Mathematics for Industry
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Sivasankaran, A., Steves, BA., & Sweatman, WL. (2008). Close encounters in the Caledonian symmetric four-body problem. In H. Varvoglis, & Z. Knezevic (Eds.) The Astronomical Observatory of Belgrade (Special issue: Dynamics of Celestial Bodies - Proceedings of the 2008 International Conference in honor of John D. Hadjidemetriou). (pp. 177 - 180).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
McGuinness, M., Sweatman, WL., & Baowan, D. (2008). Cold-point determination in heat-treated steel coils (New Zealand Steel). Mathematics and Statistics in Industry Study Group - 2008, Industry Problem reports: Equation-free Summaries. (pp. 21 - 22).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Pritchard, G., Sweatman, WL., Nan, K., Camden, M., & Whiten, WJ. (2008). Maximising the contribution of wind power in an electric power grid. In T. Marchant, M. Edwards, & G. Mercer (Eds.) Proceedings of the 2007 Mathematics-in-Industry Study Group (MISG2007). (pp. 114 - 139).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Sweatman, WL. (2008, February). Full ionisation in four-body encounters between binary stars. Presented at Australia and New Zealand Industrial and Applied Mathematics (ANZIAM) 2008 Annual Conference. Katoomba, NSW.
[Conference Oral Presentation]Authored by: Sweatman, W.
McGuinness, M., Sweatman, WL., & Baowan, Y. (2008, February). Cold-point determination in heat treated steel coils. Presented at Australia and New Zealand Industrial and Applied Mathematics (ANZIAM) 2008 Annual Conference. Katoomba, NSW.
[Conference Oral Presentation]Authored by: Sweatman, W.
Sweatman, WL. (2007). Full ionisation in binary-binary scattering. Proceedings of the International Astronomical Union. Vol. 3 (pp. 233 - 234).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Mercer, GN., Sweatman, WL., Elvin, A., Caunce, J., Fulford, G., Harper, SA., . . . Pennifold, R. (2007). Process driven models for spray retention of plants. In G. Wake (Ed.) Proceedings of the 2006 Mathematics-in-Industry Study Group. (pp. 57 - 85).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Pimpunchat, B., Sweatman, WL., Triampo, W., Wake, GC., & Parshotam, A. (2007). Modelling river pollution and removal by aeration. MODSIM07 - Land, Water and Environmental Management: Integrated Systems for Sustainability, Proceedings. (pp. 2431 - 2437).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W., Wake, G.
Sweatman, WL. (2007, December). Full ionisation in binary-binary encounters at high velocity. Presented at 1st Joint International Meeting between the American Mathematical Society and the New Zealand Mathematical Society. Victoria University of Wellington, NZ.
[Conference Oral Presentation]Authored by: Sweatman, W.
Sweatman, WL. (2007). Ionisation in binary-binary scattering. Poster session presented at the meeting of International Astronomical Union (IAU) Symposium No.246: Dynamical Evolution of Dense Stellar Systems. Capri, Italy
[Conference Poster]Authored by: Sweatman, W.
Ling, CH., Bond, IA., & Sweatman, WL. (2007). The abundance of planets by gravitational microlensing. Proceedings of the 4th Annual Post Graduate Conference of the Institute of Information and Mathematical Sciences. (pp. 161 - 163).
[Conference Paper in Published Proceedings]Authored by: Bond, I., Sweatman, W.
Lin, W., Bond, IA., & Sweatman, WL. (2007). A real-time virtual observatory: An internet application to time critical astrophysics. Proceedings of the 4th Annual Post Graduate Conference of the Institute of Information and Mathematical Sciences. (pp. 130 - 135).
[Conference Paper in Published Proceedings]Authored by: Bond, I., Sweatman, W.
Pritchard, G., Sweatman, WL., & Nan, K. (2007). Operating and planning an electricity transmission grid to maximize the contribution of wind. Mathematics and Statistics in Industry Study Group 2007 Conference. (pp. 19 - 21).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.
Sweatman, WL. (2007, January). The destruction of binary stars in low energy gravitational encounters. Presented at Australian and New Zealand Industrial and Applied Mathematics Annual Conference. Fremantle, WA.
[Conference Oral Presentation]Authored by: Sweatman, W.
Senaratne, GG., Keam, RB., Sweatman, WL., & Wake, GC. (2006). Microwave scattering at malignant tissue boundaries: A new method for breast screening. 2006 SICE-ICASE International Joint Conference. (pp. 193 - 197).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W., Wake, G.
Sweatman, WL. (2006). Full ionisation in binary-binary encounters with small positive total energy. Poster session presented at the meeting of 26th General Assembly of the International Astronomical Union (IAU). Prague, Czech Republic
[Conference Poster]Authored by: Sweatman, W.
Mercer, GN., Sweatman, WL., & Elvin, A. (2006). Process driven models for spray retention of plants. Mathematics-in-Industry Study Group 2006: Problem Reports: Equation-Free Summaries. (pp. 7 - 9).
[Conference Paper in Published Proceedings]Authored by: Sweatman, W.

Supervision and Teaching

Summary of Doctoral Supervision

Position Current Completed
Supervisor 1 0
Co-supervisor 3 8

Courses Coordinated

Current Doctoral Supervision

Supervisor of:

  • Valerie Chopovda - Doctor of Philosophy
    Computational Studies in the Few-Body Problem

Co-supervisor of:

  • Shumaila Noreen - Doctor of Philosophy
    The effect of Respiratory Sinus Arrhythmia on coronary blood flow and cardiac output
  • Mehmood Baryalai - Doctor of Philosophy
    A Platform for Practical Homomorphic Encryption in Neural Network Classification

Completed Doctoral Supervision

Co-supervisor of:

  • 2018 - ~ Khadija Tul Kubra - Doctor of Philosophy
    Mathematical modelling of fluid flow and heat and pollutant transport in a porous medium with embedded objects
  • 2016 - Saghir Ahmad - Doctor of Philosophy
    Design and construction of software for general linear methods
  • 2015 - Yu Zhao - Doctor of Philosophy
    Event based transient notification architecture and NoSQL solution for astronomical data management
  • 2015 - Amjad Ali - Doctor of Philosophy
    Simplified Modelling of Pollutant Transport in Naturally-layered Aquifers
  • 2013 - Haydn Cooper - Doctor of Philosophy
    Discrete Groups and Computational Geometry
  • 2013 - Cho Hong Ling - Doctor of Philosophy
    Simulation and Modelling of Gravitational Microlensing Events Using Graphical Processing Units
  • 2009 - Senaratne Galkadowite Gametiralalage - Doctor of Philosophy
    Microwave Signal processing for Foreign Object Identification.
  • 2006 - Leng Leng Lim - Doctor of Philosophy
    Modelling of Volcanic Ash

Massey Contact Centre Mon - Fri 8:30am to 4:30pm 0800 MASSEY (+64 6 350 5701) TXT 5222 contact@massey.ac.nz Web chat Staff Alumni News Māori @ Massey