Sanjeeva Balasuriya

APrf Sanjeeva Balasuriya

Associate Professor

School of Mathematical Sciences

College of Science

Eligible to supervise Masters and PhD - email supervisor to discuss availability.

Please visit http://sanji-balasuriya.github.io

Year Citation
2025 Michalski, H., Mattner, T., Balasuriya, S., & Binder, B. (2025). The effect of obstacle length and height in supercritical free-surface flow. Theoretical and Computational Fluid Dynamics, 39(2), 23-1-23-23.
DOI
2025 Balasuriya, S., & Mittinty, M. N. (2025). Improving computational robustness in log-likelihood maximization for binary outcomes. Journal of Statistical Computation and Simulation, 95(11), 2426-2443.
DOI
2025 McGowan, S. P., Jones, N. L., Robertson, W. S. P., & Balasuriya, S. (2025). Data-Driven Dynamic Modal Bias Analysis and Correction for Earth System Models. Journal of Advances in Modeling Earth Systems, 17(5), e2024MS004779-1-e2024MS004779-25.
DOI
2025 Blake, L., Maclean, J., & Balasuriya, S. (2025). Rigorous convergence bounds for stochastic differential equations with application to uncertainty quantification. Physica D: Nonlinear Phenomena, 481, 134742-1-134742-19.
DOI
2025 Blachut, C., & Balasuriya, S. (2025). Trends and anomalies in the coherence of the Southern Polar Vortex: A 26 year meta-study. Scientific Reports, 15(1), 28707-1-28707-12.
DOI
2024 McGowan, S. P., Robertson, W. S. P., Blachut, C., & Balasuriya, S. (2024). Optimal Reconstruction of Vector Fields from Data for Prediction and Uncertainty Quantification. Journal of Nonlinear Science, 34(4), 73-1-73-29.
DOI Scopus1 WoS1
2024 Michalski, H., Mattner, T., Balasuriya, S., & Binder, B. (2024). The effect of obstacle length and height in subcritical free-surface flow. Theoretical and Computational Fluid Dynamics, 38(4), 511-530.
DOI Scopus1 WoS1
2024 Blachut, C., & Balasuriya, S. (2024). Convective modes reveal the incoherence of the Southern Polar Vortex. Scientific Reports, 14(1), 966-1-966-14.
DOI Scopus3 WoS2 Europe PMC1
2022 Tam, A. K. Y., Harding, B., Green, J. E. F., Balasuriya, S., & Binder, B. J. (2022). Thin-film lubrication model for biofilm expansion under strong adhesion. Physical Review E, 105(1), 1-15.
DOI Scopus6 WoS6 Europe PMC6
2022 Badza, A., Mattner, T. W., & Balasuriya, S. (2022). How sensitive are Lagrangian coherent structures to uncertainties in data?. Physica D: Nonlinear Phenomena, 444, 133580.
DOI Scopus14 WoS13
2022 Priyankara, K. G. D. S., Balasuriya, S., & Bollt, E. M. (2022). Melnikov Theory for Two-Dimensional Manifolds in Three-Dimensional Flows. SIAM Journal on Applied Dynamical Systems, 21(4), 2642-2696.
DOI
2020 Balasuriya, S. (2020). Stochastic sensitivity: a computable Lagrangian uncertainty measure for unsteady flows. SIAM Review, 62(4), 781-816.
DOI Scopus10 WoS9
2020 Balasuriya, S. (2020). Uncertainties in Lagrangian prediction. Dynamical Systems Magazine, Jan.
2020 Zhang, L., & Balasuriya, S. (2020). Controlling trajectories globally via spatiotemporal finite-time optimal control. SIAM Journal on Applied Dynamical Systems, 19(3), 1609-1632.
DOI WoS2
2020 Balasuriya, S. (2020). Uncertainty in finite-time Lyapunov exponent computations. Journal of Computational Dynamics, 7(2), 313-337.
DOI Scopus9 WoS8
2020 Fang, L., Balasuriya, S., & Ouellette, N. (2020). Disentangling resolution, precision, and inherent stochasticity in nonlinear systems. Physical Review Research, 2(2), 023343-1-023343-9.
DOI Scopus5 WoS4
2019 Fang, L., Balasuriya, S., & Ouellette, N. T. (2019). Local linearity, coherent structures, and scale-to-scale coupling in turbulent flow. Physical Review Fluids, 4(1), 13 pages.
DOI Scopus8 WoS7
2019 Tam, A., Green, J. E. F., Balasuriya, S., Tek, E. L., Gardner, J. M., Sundstrom, J. F., . . . Binder, B. J. (2019). A thin-film extensional flow model for biofilm expansion by sliding motility. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 475(2229), 20190175-1-20190175-21.
DOI Scopus11 WoS12 Europe PMC10
2018 Balasuriya, S., Ouellette, N., & Rypina, I. (2018). Generalized Lagrangian coherent structures. Physica D: Nonlinear Phenomena, 372, 31-51.
DOI Scopus69 WoS67
2018 Tam, A., Green, J., Balasuriya, S., Tek, E., Gardner, J., Sundstrom, J., . . . Binder, B. (2018). Nutrient-limited growth with non-linear cell diffusion as a mechanism for floral pattern formation in yeast biofilms. Journal of Theoretical Biology, 448, 122-141.
DOI Scopus16 WoS17 Europe PMC12
2018 Tronnolone, H., Tam, A., Szenczi, Z., Green, J., Balasuriya, S., Tek, E., . . . Binder, B. (2018). Diffusion-limited growth of microbial colonies. Scientific Reports, 8(5992), 5992-1-5992-11.
DOI Scopus31 WoS27 Europe PMC23
2018 Balasuriya, S., & Gottwald, G. (2018). Estimating stable and unstable sets and their role as transport barriers in stochastic flows. Physical Review E, 98(1), 013106-1-013106-17.
DOI Scopus6 WoS4 Europe PMC1
2017 Sulalitha Priyankara, K., Balasuriya, S., & Bollt, E. (2017). Quantifying the role of folding in nonautonomous flows: the unsteady Double-Gyre. International Journal of Bifurcation and Chaos, 27(10), 1750156-1-1750156-19.
DOI Scopus10 WoS9
2017 Balasuriya, S. (2017). Unsteadily manipulating internal flow barriers. Journal of Fluid Mechanics, 818, 382-406.
DOI Scopus2 WoS3
2017 Balasuriya, S. (2017). Stochastic uncertainty of advected curves in finite-time unsteady flows. Physical Review E, 95(6), 062201-1-062201-12.
DOI Scopus4 WoS3
2017 Balasuriya, S. (2017). Transport between two fluids across their mutual flow interface: the streakline approach. SIAM Journal on Applied Dynamical Systems, 16(2), 1015-1044.
DOI Scopus7 WoS7
2016 Balasuriya, S. (2016). Impulsive perturbations to differential equations: stable/unstable pseudo-manifolds, heteroclinic connections, and flux. Nonlinearity, 29(12), 3897-3933.
DOI Scopus6 WoS5
2016 Balasuriya, S., Kalampattel, R., & Ouellette, N. (2016). Hyperbolic neighbourhoods as organizers of finite-time exponential stretching. Journal of Fluid Mechanics, 807, 509-545.
DOI Scopus25 WoS23
2016 Balasuriya, S. (2016). Meridional and zonal wavenumber dependence in tracer flux in Rossby waves. Fluids, 1(3), 1-34.
DOI Scopus4 WoS4
2016 Balasuriya, S. (2016). Local stable and unstable manifolds and their control in nonautonomous finite-time flows. Journal of Nonlinear Science, 26(4), 895-927.
DOI Scopus9 WoS7
2016 Sewalt, L., Harley, K., van Heijster, P., & Balasuriya, S. (2016). Influences of Allee effects in the spreading of malignant tumours. Journal of Theoretical Biology, 394, 77-92.
DOI Scopus26 WoS26 Europe PMC17
2016 Balasuriya, S. (2016). A numerical scheme for computing stable and unstable manifolds in nonautonomous flows. International Journal of Bifurcation and Chaos, 26(14), 1630041-1-1630041-22.
DOI Scopus4 WoS3
2015 Balasuriya, S. (2015). Quantifying transport within a two-cell microdroplet induced by circular and sharp channel bends. Physics of Fluids, 27(5), 052005-1-052005-20.
DOI Scopus5 WoS5
2015 Balasuriya, S. (2015). Dynamical systems techniques for enhancing microfluidic mixing. Journal of Micromechanics and Microengineering, 25(9), 094005-1-094005-16.
DOI Scopus23 WoS22
2015 Binder, B., Blyth, M., & Balasuriya, S. (2015). Steady free-surface flow over spatially periodic topography. Journal of Fluid Mechanics, 781, R3-1-R3-14.
DOI Scopus5 WoS6
2014 Balasuriya, S., Froyland, G., & Santitissadeekorn, N. (2014). Absolute flux optimising curves of flows on a surface. Journal of Mathematical Analysis and Applications, 409(1), 119-139.
DOI Scopus8 WoS9
2014 Binder, B., Blyth, M., & Balasuriya, S. (2014). Non-uniqueness of steady free-surface flow at critical Froude number. EPL, 105(4), 44003-1-44003-6.
DOI Scopus22 WoS21
2014 Balasuriya, S., & Binder, B. (2014). Nonautonomous analysis of steady Korteweg-de Vries waves under nonlocalised forcing. Physica D: Nonlinear Phenomena, 285, 28-41.
DOI Scopus8 WoS9
2014 Balasuriya, S., & Padberg-Gehle, K. (2014). Nonautonomous control of stable and unstable manifolds in two-dimensional flows. Physica D, 276, 48-60.
DOI Scopus10 WoS11
2014 Balasuriya, S., & Padberg-Gehle, K. (2014). Accurate control of hyperbolic trajectories in any dimension. Physical Review E: Statistical, Nonlinear, and Soft Matter Physics, 90(3), 032903-1-032903-9.
DOI Scopus11 WoS13 Europe PMC3
2013 Balasuriya, S., & Padberg-Gehle, K. (2013). Controlling the unsteady analogue of saddle stagnation points. Siam Journal on Applied Mathematics, 73(2), 1038-1057.
DOI Scopus13 WoS15
2012 Balasuriya, S. (2012). Explicit invariant manifolds and specialised trajectories in a class of unsteady flows. Physics of Fluids, 24(12), 1-27.
DOI Scopus19 WoS20
2012 Balasuriya, S., & Finn, M. (2012). Energy constrained transport maximization across a fluid interface. Physical Review Letters, 108(24), 1-4.
DOI Scopus15 WoS16 Europe PMC1
2011 Balasuriya, S. (2011). A tangential displacement theory for locating perturbed saddles and their manifolds. SIAM Journal on Applied Dynamical Systems, 10(3), 1100-1126.
DOI Scopus21 WoS20
2010 Balasuriya, S. (2010). Species spreading due to environmental hostility, dispersal adaptation and Allee effects. Proceedings of World Academy of Science, Engineering & Technology, 65, 833-839.
2010 Balasuriya, S. (2010). Optimal frequency for microfluidic mixing across a fluid interface. Physical Review Letters, 105(6), 064501-1-064501-4.
DOI Scopus23 WoS23 Europe PMC5
2010 Balasuriya, S. (2010). Invasions with density-dependent ecological parameters. Journal of Theoretical Biology, 266(4), 657-666.
DOI Scopus7 WoS7 Europe PMC4
2010 Balasuriya, S., & Gottwald, G. (2010). Wavespeed in reaction–diffusion systems, with applications to chemotaxis and population pressure. Journal of Mathematical Biology, 61(3), 377-399.
DOI Scopus10 WoS9 Europe PMC6
2008 Balasuriya, S., & Volpert, V. (2008). Wavespeed analysis: approximating Arrhenius kinetics with step-function kinetics. Combustion Theory and Modelling, 12(4), 643-670.
DOI Scopus12 WoS8
2007 Balasuriya, S., Gottwald, G., Hornibrook, J., & Lafortune, S. (2007). High Lewis number combustion wavefronts: a perturbative Melnikove analysis. Siam Journal on Applied Mathematics, 67(2), 464-486.
DOI Scopus19 WoS20
2007 Balasuriya, S. (2007). Separatrix splitting through high-frequency non-smooth perturbations. Dynamics of Continuous Discrete and Impulsive Systems-Series A-Mathematical Analysis, 14(3), 333-343.
WoS1
2007 Balasuriya, S. S., Bandara, K. M. K., Ekanayake, S. D., & Jayasinghe, M. T. R. (2007). The Influence of Transfer Plates on the Lateral Behaviour of Apartment Buildings. ENGINEER-JOURNAL OF THE INSTITUTION OF ENGINEERS SRI LANKA, 40(4), 22-30.
DOI
2006 Balasuriya, S. (2006). Cross-separatrix flux in time-aperiodic and time-impulsive flows. Nonlinearity, 19(12), 2775-2795.
DOI Scopus19 WoS19
2005 Balasuriya, S. (2005). Direct chaotic flux quantification in perturbed planar flows: general time-periodicity. SIAM Journal on Applied Dynamical Systems, 4(2), 282-311.
DOI Scopus17 WoS16
2005 Balasuriya, S. (2005). Optimal perturbation for enhanced chaotic transport. Physica D, 202(3-4), 155-176.
DOI Scopus32 WoS29
2005 Balasuriya, S. (2005). Approach for maximizing chaotic mixing in microfluidic devices. Physics of Fluids, 17(11), 118103-1-118103-4.
DOI Scopus22 WoS23
2004 Balasuriya, S. (2004). An analytical study of general hyper-diffusivity and barotropic eddies. Geophysical and Astrophysical Fluid Dynamics, 98(1), 39-62.
DOI Scopus1 WoS2
2003 Balasuriya, S., Mezić, I., & Jones, C. K. R. T. (2003). Weak finite-time Melnikov theory and 3D viscous perturbations of Euler flows. Physica D Nonlinear Phenomena, 176(1-2), 82-106.
DOI Scopus19 WoS18
2001 Balasuriya, S., & Jones, C. K. R. T. (2001). Diffusive draining and growth of eddies. Nonlinear Processes in Geophysics, 8(4-5), 241-251.
DOI Scopus16 WoS16
2001 Balasuriya, S. (2001). Gradient evolution for potential vorticity flows. Nonlinear Processes in Geophysics, 8(4-5), 253-263.
DOI Scopus9 WoS8
2000 Sandstede, B., Balasuriya, S., Jones, C. K. R. T., & Miller, P. (2000). Melnikov theory for finite-time vector fields. Nonlinearity, 13(4), 1357-1377.
DOI Scopus32 WoS29
1999 Balasuriya, S. (1999). Lifetime and Illness in Almost Deterministic Maps. Journal of Mathematical Analysis and Applications, 235(1), 274-294.
DOI
1998 Balasuriya, S., Jones, C. K. R. T., & Sandstede, B. (1998). Viscous perturbations of vorticity-conserving flows and separatrix splitting. Nonlinearity, 11(1), 47-77.
DOI Scopus26 WoS26
1997 Balasuriya, S. (1997). Vanishing viscosity in the barotropic β-plane. Journal of Mathematical Analysis and Applications, 214(1), 128-150.
DOI Scopus18 WoS16
- Tam, A., Binder, B., Green, E., Balasuriya, S., Tek, E. L., Gardner, J., . . . Jiranek, V. (n.d.). A thin-film extensional flow model for biofilm expansion by sliding motility.
DOI

Year Citation
2016 Balasuriya, S. (2016). Barriers and Transport in Unsteady Flows: A Melnikov Approach (Vol. 21). Philadelphia: Society for Industrial and Applied Mathematics Press (SIAM).

Year Citation
2014 Balasuriya, S. (2014). Nonautonomous flows as open dynamical systems: characterising escape rates and time-varying boundaries. In W. Bahsoun, C. Bose, & G. Froyland (Eds.), Ergodic Theory, Open Dynamics, and Coherent Structures (Vol. 70, 1 ed., pp. 1-30). New York, USA: Springer.
DOI Scopus10 WoS8
2014 Balasuriya, S. (2014). Nonautonomous Flows as Open Dynamical Systems: Characterising Escape Rates and Time-Varying Boundaries. In Springer Proceedings in Mathematics & Statistics (pp. 1-30). Springer New York.
DOI

Year Citation
2014 Balasuriya, S. (2014). Flow barriers in realistic flows, and their relationship to invariant manifolds. Poster session presented at the meeting of Oberwolfach Reports. Zurich: European Mathematical Society.
- Tam, A., Balasuriya, S., Green, E., & Binder, B. (n.d.). Understanding floral pattern formation in yeast biofilms. Poster session presented at the meeting of Unknown Conference.
DOI

Year Citation
- Tam, A., Green, E., Balasuriya, S., Tek, E. L., Gardner, J., Sundstrom, J., . . . Binder, B. (n.d.). Code and Data [Computer Software].
DOI

Year Citation
2024 Blake, L., Maclean, J., & Balasuriya, S. (2024). Unifying Lyapunov exponents with probabilistic uncertainty
quantification.
2023 Blake, L., Maclean, J., & Balasuriya, S. (2023). The convergence of stochastic differential equations to their
linearisation in small noise limits.
2021 Balasuriya, S., & Bollt, E. (2021). Globally optimal stretching foliations of dynamical systems reveal the
organizing skeleton of intensive instabilities.

Please visit https://sanji-balasuriya.github.io

Please visit https://sanji-balasuriya.github.io

Date Role Research Topic Program Degree Type Student Load Student Name
2025 Principal Supervisor Methods for inference and forecasting in mechanistic models with unresolved processes Doctor of Philosophy Doctorate Full Time Mr Liam Andrew Alex Blake
2025 Principal Supervisor Geometric Blow-up Techniques for the Study of Switching in Multi-Scale Systems Doctor of Philosophy Doctorate Full Time Mr Tyson Jack Rowe
2025 Principal Supervisor Geometric Blow-up Techniques for the Study of Switching in Multi-Scale Systems Doctor of Philosophy Doctorate Full Time Mr Tyson Jack Rowe
2025 Principal Supervisor Methods for inference and forecasting in mechanistic models with unresolved processes Doctor of Philosophy Doctorate Full Time Mr Liam Andrew Alex Blake
2024 Co-Supervisor Open channel flow past a topographic disturbance: generalised model for short and long length bumps Doctor of Philosophy Doctorate Full Time Mr Hugh Clarke Michalski
2024 Co-Supervisor Open channel flow past a topographic disturbance: generalised model for short and long length bumps Doctor of Philosophy Doctorate Full Time Mr Hugh Clarke Michalski
2021 Co-Supervisor Analysis of the Inverse Free Surface Potential Flow Problem in Three Dimensions Doctor of Philosophy Doctorate Full Time Miss Elizabeth Marilyn Auke Jagersma
2021 Co-Supervisor Analysis of the Inverse Free Surface Potential Flow Problem in Three Dimensions Doctor of Philosophy Doctorate Full Time Miss Elizabeth Marilyn Auke Jagersma

Date Role Research Topic Program Degree Type Student Load Student Name
2022 - 2024 Principal Supervisor Methods for inference and forecasting in mechanistic models with unresolved processes Doctor of Philosophy Master Full Time Mr Liam Andrew Alex Blake
2021 - 2025 Principal Supervisor Reconstructing dynamics from data: Algorithms for the prediction, estimation, and correction of chaotic systems Doctor of Philosophy Doctorate Full Time Mr Sean McGowan
2019 - 2021 Principal Supervisor Lagrangian Coherent Data Assimilation for Chaotic Geophysical Systems Master of Philosophy Master Full Time Ms Rose Joy Crocker
2018 - 2022 Principal Supervisor A Quantitative Evaluation of Lagrangian Coherent Structure Detection Methods Based on Computational and Experimental Limitations Doctor of Philosophy Doctorate Full Time Mr Aleksandar Badza
2016 - 2019 Co-Supervisor Mathematical Modelling of Pattern Formation in Yeast Biofilms Doctor of Philosophy Doctorate Full Time Mr Alexander Tam

Date Role Research Topic Location Program Supervision Type Student Load Student Name
2016 - ongoing External Supervisor Stretching and folding in data-driven and chaotic systems Clarkson University, USA Clarkson does not have official external supervisors; this is an unofficial capacity. The student has joint publications with me already. Doctorate - K.G. Sulalitha Priyankara
2015 - 2016 External Supervisor Patterns in natural systems Leiden University (Netherlands) This was an unoffical external supervision; a joint publication resulted from this, and the student graduated in 2016. Doctorate - Lotte Sewalt

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