List of Publications

• V. Subburayan, S. Natesan, Solution of Singularly Perturbed System of 2D Parabolic Convection Diffusion Differential-Difference Equations Using Alternating Direction Method, Indian Journal of Pure and Applied Mathematics, (In Press).
• Aniruddha Seal, S. Natesan, An accurate finite-difference scheme for the numerical solution of a fractional differential equation, Computational Methods for Differential Equations, (In Press).
• Saurabh Bansal, S. Natesan, A novel higher-order efficient computational method for pricing European and Asian options, Numerical Algorithms, (In Press).
• Aniruddha Seal, S. Natesan, A numerical approach for nonlinear time-fractional diffusion equation with generalized memory kernel, Numerical Algorithms, (In Press).
• Aayushman Raina, S. Natesan, A Weak Galerkin Finite Element method for Fourth order Parabolic Singularly Perturbed Problems on layer adapted Shishkin mesh, Applied Numerical Mathematics, 207, 520 - 533, 2025.
• Aayushman Raina, S. Natesan, Suayip Toprakseven, Anisotropic Error Analysis of Weak Galerkin finite element method for Singularly Perturbed Biharmonic Problems, Mathematics and Computers in Simulation, 229, 203 - 221, 2025.
• Mrityunjoy Barman, S. Natesan, Ali Sendur, A parameter-uniform hybrid method for singularly perturbed parabolic 2D convection-diffusion-reaction problems, Applied Numerical Mathematics, 207, 111 - 135, 2025.
• Saurabh Bansal, S. Natesan, An Efficient Fourth-Order Numerical Scheme for Nonlinear Multi-Asset Option Pricing Problems, Mediterranean Journal of Mathematics, 21(7), 194, 2024.
• Sandip Maji, S. Natesan, Error analysis for discontinuous Galerkin method for time-fractional Burgers' equation, Mathematical Methods in the Applied Sciences, 47 (12), 9703 - 9717, 2024.
• S. Toprakseven, S. Natesan, An efficient Weak Galerkin FEM for Third-Order Singularly Perturbed Convection-Diffusion Differential Equations on Layer-Adapted Meshes, Applied Numerical Mathematics, 204, 130-146, 2024.
• Aniruddha Seal, S. Natesan, An Efficient Computational Technique for Semilinear Time--Fractional Diffusion Equation, Calcolo, 61(3), 47, 2024.
• Suleyman Cengizci, Omur Ugur, S. Natesan, SUPG-based stabilized finite element computations of convection-dominated 3D elliptic PDEs using shock-capturing, Journal of Computational and Applied Mathematics, 451, Article No. 116022, 2024.
• Sandip Maji, S. Natesan, Superconvergence analysis of interior penalty discontinuous Galerkin method for a class of time-fractional diffusion problems, Computational and Applied Mathematics, 43 (3), 133, 2024.
• N. Balasubramani, M. Guru Prem Prasad, S. Natesan, FFractal quintic spline solutions for singularly perturbed reaction-diffusion boundary-value problems, Applied Numerical Mathematics , 202, 89 - 99, 2024.
• Sandip Maji, S. Natesan, Adaptive-grid technique for the numerical solution of a class of fractional boundary-value-problems, Computational Methods for Differential Equations, 12(2), 338 - 349, 2024.
• Suleyman Cengizci, Omur Ugur, S. Natesan, A stabilized finite element formulation with shock-capturing for solving advection-dominated convection-diffusion equations having time-fractional derivatives, Journal of Computational Science, 76, Article No. 102214, 2024.
• Aniruddha Seal, S. Natesan, Suayip Toprakseven, A Dimensional-Splitting Weak Galerkin Finite Element Method for 2D Time-Fractional Diffusion Equation, Journal of Scientific Computing, 98, 56, 2024.
• Sandip Maji, S. Natesan, An Efficient Numerical Method for Fractional Advection - Diffusion - Reaction Problem with RLC Fractional Derivative, Mediterranean Journal of Mathematics, 20(6), 297, 2023.
• Jaspreet Kaur, S. Natesan, A novel numerical scheme for time-fractional Black-Scholes PDE governing European options in mathematical finance, Numerical Algorithms, 94(4), 1519-1549, 2023.
• Saurabh Bansal, S. Natesan, Richardson Extrapolation Technique for Generalized Black-Scholes PDEs for European Options, Computational and Applied Mathematics, 42 (5), 238, 2023.
• Sandip Maji, S. Natesan, Nonsymmetric interior penalty Galerkin method for nonlinear time-fractional integro-partial differential equations, Mathematics and Computers in Simulation, 213, 1 - 17, 2023.
• Arun Kumar, Tanya Chauhan, S. Natesan, Nhat Truong Pham, Ngoc Duy Nguyen, Chee Peng Lim, Towards an efficient machine learning model for financial time seriesforecasting, Soft Computing, 27(16), pp. 11329 - 11339, 2023.
• Suleyman Cengizci, S. Natesan, Hybridized successive complementary expansions for solving convection-dominated 2D elliptic PDEs with boundary layers, Computational and Applied Mathematics, 42 (6), 273, 2023.
• Gautam Singh, S. Natesan, Ali Sendur, Superconvergence error analysis of discontinuous Galerkin method with interior penalties for 2D elliptic convection - diffusion - reaction problems, International Journal of Computer Mathematics, 100(5), 948-967, 2023.
• Suleyman Cengizci, Omur Ugur, S. Natesan, A SUPG formulation augmented with shock-capturing for solving convection-dominated reaction-convection-diffusion equations, Computational and Applied Mathematics, 42 (5), 235, 2023.
• Sandip Maji, S. Natesan, Analytical and numerical solution techniques for a class of time-fractional integro-partial differential equations, Numerical Algorithms, 94 (1), 229 - 256, 2023.
• V. Subburayan, S. Natesan, Robust Numerical Method for Space Shift 2D Singularly Perturbed Parabolic Convection Diffusion Differential Equations, Computational and Applied Mathematics, 42(4), Article No. 153, 2023.
• Dev Priya Goel, Kushagra Mahajan, Ngoc Duy Nguyen, S. Natesan, Chee Peng Lim, Towards an Efficient Backbone for Preserving Features in Speech Emotion Recognition: Deep-Shallow Convolution with Recurrent Neural Network, Neural Computing and Applications, 35(3), 2457 - 2469, 2023.
• Aniruddha Seal, S. Natesan, Convergence analysis of a second-order scheme for fractional differential equation with integral boundary conditions, Journal of Applied Mathematics and Computing, 69(1), 465 - 489, 2023.
• Suleyman Cengizci, Omur Ugur, S. Natesan, SUPG-YZβ computation of chemically reactive convection-dominated nonlinear models, International Journal of Computer Mathematics, 100(2), 283 - 303, 2023.
• Sandip Maji, S. Natesan, Analytical and numerical solutions of time-fractional advection-diffusion-reaction equation, Applied Numerical Mathematics, 185, 549-570, 2023.
• Mrityunjoy Barman, S. Natesan, Ali Sendur, Alternating Direction Implicit Method for Singularly Perturbed 2D Parabolic Convection-Diffusion-Reaction Problem with Two Small Parameters, International Journal of Computer Mathematics, 100(2), 253 - 282, 2023.
• V. Subburayan, S. Natesan, Parameter Uniform Numerical Method for Singularly Perturbed 2D Parabolic PDE with Shift in Space, Mathematics, 3310, 10(18), 2022.
• Maneesh Kumar Singh, S. Natesan, Numerical analysis of singularly perturbed system of parabolic convection-diffusion problem with regular boundary layers, Differential Equations and Dynamical Systems, 30(3), 695-717, 2022.
• Gautam Singh, S. Natesan, Superconvergence error estimates of discontinuous Galerkin time stepping for singularly perturbed parabolic problems, Numerical Algorithms, 90(3), 1073-1090, 2022.
• Avijit, Das, S. Natesan, Numerical Analysis of a Fully-Discrete Stabilized FEM for System of Singularly Perturbed Parabolic IBVPs, International Journal of Computer Mathematics, 99(8), 1595-1616, 2022.
• A. Majumdar, S. Natesan, Parameter-uniform numerical method for singularly perturbed 2-D parabolic convection-diffusion problem with interior layers, Mathematical Methods in the Applied Sciences, , 45(5), 3039-3057, 2022.
• Jaisal Singh, Srinivasan Natesan, Marcin Paprzycki, Maria Ganzha, Experimenting with Assamese Handwritten Character Recognition, In: Big-Data-Analytics in Astronomy, Science, and Engineering. BDA 2021. Lecture Notes in Computer Science. Springer, Vol 13167, 851-859, 2022.
• Avijit, Das, S. Natesan, Convergence Analysis of a Fully-discrete FEM for Singularly Perturbed Two-Parameter Parabolic PDE, Mathematics and Computers in Simulation, 197,185-206, 2022.
• Mihir Yadav, Divyansh Mangal, Srinivasan Natesan, Marcin Paprzycki, Maria Ganzha, Assamese Character Recognition Using Convolutional Neural Networks, In: Proceedings of 2nd International Conference on Artificial Intelligence: Advances and Applications. Algorithms for Intelligent Systems. Springer, Singapore, 851-859, 2022.
• Avijit, Das, S. Natesan, Stability and Error Analysis of a Fully-Discrete Numerical Method for System of 2D Singularly Perturbed Parabolic PDEs, Computers and Mathematics with Applications, 110, 135-145, 2022.
• Avijit, Das, S. Natesan, An Efficient DWR-Type a Posteriori Error Bound of SDFEM for Singularly Perturbed Convection-Diffusion PDEs, Journal of Scientific Computing, 90(2): 73, 2022.
• Avijit, Das, S. Natesan, A Novel Two-step Streamline-diffusion FEM for Singularly Perturbed 2D Parabolic PDEs, Applied Numerical Mathematics , 172, 259-278, 2022.
• S. Natesan, Maneesh Kumar Singh, Robust computational method for singularly perturbed system of parabolic convection-diffusion problems with interior layers, Computational and Mathematical Methods , 3(6), e1146, 2021.
• Ali Sendur, S. Natesan, Gautam Singh, Error estimates for a fully discrete ε-uniform finite element method on quasi uniform meshes, Hacettepe Journal of Mathematics and Statistics, 50(2), 1306-1324, 2021.
• Maneesh Kumar Singh, Gautam Singh, S. Natesan, A unified study on superconvergence analysis of Galerkin FEM for singularly perturbed systems of multiscale nature, Journal of Applied Mathematics and Computing, 66(1-2), 221-246, 2021.
• N. Balasubramani, M. Guru Prem Prasad, S. Natesan, Fractal quintic spline method for non-linear boundary-value problems, Hacettepe Journal of Mathematics and Statistics, 49 (6), 1885 - 1903, 2020.
• Avijit, Das, S. Natesan, SDFEM for Singularly Perturbed Boundary-Value Problems with Two Parameters, Journal of Applied Mathematics and Computing, 64 (1-2), 591 - 614, 2020.
• Maneesh Kumar Singh, S. Natesan, Numerical solution of 2D singularly perturbed reaction-diffusion system with multiple scales, Computers & Mathematics with Applications , 80(4), 36-53, 2020.
• Avijit, Das, S. Natesan, SDFEM for Singularly Perturbed Parabolic Initial-Boundary-Value Problems on Equidistributed Grids, Calcolo, 57 (3), 23, 2020.
• N. Balasubramani, M. Guru Prem Prasad, S. Natesan, Shape preserving α-fractal rational cubic splines, Calcolo, 57 (3), 21, 2020.
• Gautam Singh, S. Natesan, A uniformly convergent numerical scheme for a coupled system of singularly perturbed reaction-diffusion equations, Numerical Functional Analysis and Optimization, 41(10), 1172-1189, 2020.
• Gautam Singh, S. Natesan, Study of the NIPG Method for Two-Parameter Singular Perturbation Problems on Several Layer Adapted Grids, Journal of Applied Mathematics and Computing, 63(1-2), 683 - 705, 2020.
• N. Balasubramani, M. Guru Prem Prasad, S. Natesan, Fractal cubic spline methods for singular boundary-value problems, International Journal of Applied and Computational Mathematics, 6(2), 47, 2020.
• Maneesh Kumar Singh, S. Natesan, A parameter-uniform hybrid finite difference scheme for singularly perturbed system of parabolic convection-diffusion problems, International Journal of Computer Mathematics, 97(4), 875-905, 2020.
• A. Majumdar, S. Natesan, A Higher-Order Hybrid Numerical Scheme for Singularly Perturbed Convection-Diffusion Problem with Boundary and Weak Interior Layers, International Journal of Mathematical Modelling and Numerical Optimisation, 10(1), 68 - 101, 2020.
• N. Balasubramani, M. Guru Prem Prasad, S. Natesan, Fractal quintic spline solutions for fourth-order boundary-value problems, International Journal of Applied and Computational Mathematics, 5(5), 130, 2019.
• K. Mukherjee, S. Natesan, Parameter-Uniform Fractional Step Hybrid Numerical Scheme for 2D Singularly Perturbed Parabolic Convection-Diffusion Problems, Journal of Applied Mathematics and Computing, 60 (1-2), 51 - 86, 2019.
• A. Majumdar, S. Natesan, An Uniform Hybrid Numerical Scheme for a Singularly Perturbed Degenerate Parabolic Convection-Diffusion Problem, International Journal of Computer Mathematics, 96(7), 1313-1334, 2019.
• Maneesh Kumar Singh, S. Natesan, A Robust Computational Method for Singularly Perturbed System of 2D Parabolic Convection-Diffusion Problems, International Journal of Mathematical Modelling and Numerical Optimisation, 9(2), 127 - 157, 2019.
• A. Das, S. Natesan, Parameter-uniform numerical method for singularly perturbed 2D delay parabolic convection-diffusion problems on Shishkin mesh, Journal of Applied Mathematics and Computing, 59 (1-2), 207 - 225, 2019.
• Suleyman Cengizci, S. Natesan, Mehmet Tarik Atay, An asymptotic-numerical hybrid method for singularly perturbed system of two-point reaction-diffusion boundary-value problems, Turkish Journal of Mathematics, 43 (1), 460-472, 2019.
• S. Gowrisankar, S. Natesan, An Efficient Robust Numerical Method for Singularly Perturbed Burgers' Equation, Applied Mathematics and Computation, 346(1), 385 - 394, 2019.
• Gautam Singh, S. Natesan, Superconvergence of Discontinuous Galerkin Method with Interior Penalties for Singularly Perturbed Two-Point Boundary-Value Problems, CALCOLO, 55(54), 1-30, 2018.
• Gautam Singh, S. Natesan, A uniformly convergent NIPG method for a singularly perturbed system of reaction-diffusion boundary-value problems, Springer Proc. Math. Stat.,, 253, 429-440, 2018.
• N. Balasubramani, M. Guru Prem Prasad, S. Natesan, Constrained and convex interpolation through rational cubic fractal interpolation surface, Computational and Applied Mathematics, 37 (5), 6308 - 6331, 2018.
• A. Das, S. Natesan, Uniformly convergent numerical method for singularly perturbed 2D delay parabolic convection-diffusion problems on Bakhvalov-Shishkin mesh, International Journal of Mathematical Modelling and Numerical Optimisation, 8 (4), 305 - 330, 2018.
• Maneesh Kumar Singh, S. Natesan, A finite element superconvergence approximations for singularly perturbed system of convection-diffusion problems, AIP Conference Proceedings, 1975, 030016, 2018.
• N. Balasubramani, M. Guru Prem Prasad, S. Natesan, Rational Cubic Fractal Spline for Visualization of Shaped Data, Neural, Parallel and Scientific Computations, 26 (2), 183 - 210, 2018.
• Maneesh Kumar Singh, S. Natesan, Richardson Extrapolation Technique for Singularly Perturbed System of Parabolic Partial Differential Equations with Exponential Boundary Layers, Applied Mathematics and Computation, 333, 254 - 275, 2018.
• A. Das, S. Natesan, Fractional step method for singularly perturbed 2D delay parabolic convection diffusion problems on Shishkin mesh, International Journal of Applied and Computational Mathematics, 4(2), (Article 65), 2018.
• A. Das, S. Natesan, Higher-order convergence with fractional-step method for singularly perturbed 2D parabolic convection-diffusion problems on Shishkin mesh, Computers & Mathematics with Applications, 75 (7), 2387 - 2403, 2018.
• A. Das, S. Natesan, Second-order uniformly convergent numerical method for singularly perturbed delay parabolic partial differential equations, International Journal of Computer Mathematics, 95 (3), 490 - 510, 2018.
• A. Majumdar, S. Natesan, Second-Order Uniformly Convergent Richardson Extrapolation Method for Singularly Perturbed DEgenerate Parabolic PDEs, International Journal of Applied and Computational Mathematics, 3 (1), 31 - 53, 2017.
• A. Majumdar, S. Natesan, Alternating Direction Numerical Scheme for Singularly Perturbed 2D Degenerate Parabolic Convection-Diffusion Problems, Applied Mathematics and Computation, 313, 453 - 473, 2017.
• S. Gowrisankar, S. Natesan, Uniformly Convergent Numerical Scheme for Singularly Perturbed Delay Parabolic Partial Differential Equations, International Journal of Computer Mathematics, 94 (5), 902-921, 2017.
• A. Das, S. Natesan, Uniformly Convergent Hybrid Numerical Scheme for Singularly Perturbed Delay Parabolic Convection-Diffusion Problems on Shishkin Mesh, Applied Mathematics and Computation, 271, 168 - 186, 2015.
• P. Das, S. Natesan, Adaptive Mesh Generation for Singularly Perturbed Fourth-Order Ordinary Differential Equations, International Journal of Computer Mathematics, 92(3), 562 - 578, 2015.(MR 3298069)
• P. Das, S. Natesan, Optimal Error Estimate using Mesh Equidistribution Technique for Singularly Perturbed System of Reaction-Diffusion Boundary-Value Problems, Applied Mathematics and Computation, 249, 265 - 277, 2014. (MR 3279420)
• S. Gowrisankar, S. Natesan, A Robust Numerical Scheme for Singularly Perturbed Delay Parabolic Initial-Boundary-Value Problems on Equidistributed Grids, Electronic Transactions on Numerical Analysis, 41, 376 - 395, 2014. (MR 3284414)
• K. Mukherjee, S. Natesan, Uniform Convergence Analysis of Hybrid Numerical Scheme for Singularly Perturbed Problems of Mixed Type , Numerical Methods for Partial Differential Equations, 30(6), 1931 - 1960, 2014. (MR 3267359)
• S. Gowrisankar, S. Natesan, Uniformly Convergent Numerical Method for Singularly Perturbed Parabolic Initial-Boundary-Value Problems with Equidistributed Grids, International Journal of Computer Mathematics, 91(3), 553-577, 2014. (MR 3217588)
• S. Gowrisankar, S. Natesan, Robust Numerical Scheme for Singularly Perturbed Convection-Diffusion Parabolic Initial-Boundary-Value Problems on Equidistributed Grids, Computer Physics Communications, 185, 2008 - 2019, 2014. (MR 3209560)
• P. Das, S. Natesan, Numerical Solution of a System of Singularly Perturbed Convection-Diffusion Boundary-Value Problems Using Mesh Equidistribution Technique, Australian Journal of Mathematical Analysis and Applications, 10 (1), Art. 14, 17 pp, 2013. (MR 3128837)
• K. Mukherjee, S. Natesan, An Efficient Hybrid Numerical Scheme for Singularly Perturbed Problems of Mixed Parabolic-Elliptic type, Lecture Notes in Computer Science, 8236, 411-419, 2013. (MR 3150013)
• S. Gowrisankar, S. Natesan, Parameter Uniform Numerical Method for Singularly Perturbed Parabolic Reaction-Diffusion Problems on Equidistributed Grids, Applied Mathematics Letters, 26 (11), 1053-1060, 2013. (MR 3089564)
• P. Das, S. Natesan, Richardson Extrapolation Method for Singularly Perturbed Convection-Diffusion Problems on Adaptively Generated Mesh, CMES: Computer Modeling in Engineering Sciences, 90(6), 463-485, 2013. (MR 3099246)
• P. Das, S. Natesan, A Uniformly Convergent Hybrid Scheme for Singularly Perturbed System of Reaction-Diffusion Robin-Type Boundary-Value Problems, Journal of Applied Mathematics and Computing, 41(1-2), 447-471, 2013. (MR 3017131)
• S. Natesan, S. Gowrisankar, Robust Numerical Scheme for Singularly Perturbed Parabolic Initial-Boundary-Value Problems on Equidistributed Mesh, CMES: Computer Modeling in Engineering Sciences, 88 (4), 245-268, 2012. (MR 3059044)
• P. Das, S. Natesan, Higher-Order Uniform-Convergent Schemes for Robin-Type Reaction-Diffusion Problems Using Adaptively Generated Grid, International Journal of Computational Methods, 9(4), 2012. (MR 3016139)
• J. Mohapatra, S. Natesan, Uniformly Convergent Numerical Method for Singularly Perturbed Differential--Difference Equation Using Grid Equidistribution, International Journal for Numerical Methods in Biomedical Engineering, 27(9), 1427-1445, 2011. (MR 2837206)
• J. Mohapatra, S. Natesan, Parameter-Uniform Numerical Methods for Singularly Perturbed Mixed Boundary-Value Problems Using Grid Equidistribution, Journal of Applied Mathematics and Computing, 37(1), 247- 265, 2011. (MR 2831536)
• K. Mukherjee, S. Natesan, -Uniform Error Estimate of Hybrid Numerical Scheme for Singularly Perturbed Parabolic Problems with Interior Layers, Numerical Algorithms, 58(1), 103-141, 2011. (MR 2831159)
• K. Mukherjee, S. Natesan, Optimal Error Estimate of Upwind Scheme on Shishkin-Type Meshes for Singularly Perturbed Parabolic Problems with Discontinuous Convection Coefficients, BIT Numerical Mathematics, 51(2), 289-315, 2011. (MR 2806532)
• K. Mukherjee, S. Natesan, Richardson Extrapolation Technique for Singularly Perturbed Parabolic Convection-Diffusion Problems, Computing, 92, 1-32, 2011. (MR 2794924)
• J. Mohapatra, S. Natesan, The Parameter-Robust Numerical Method Based on Defect Correction Technique for Singularly Perturbed Delay Differential Equations with Layer Behavior, International Journal of Computational Methods, 7 (4), 573-594, 2010. (MR 2756267)
• J. Mohapatra, S. Natesan, Parameter-uniform numerical method for global solution and global normalized flux of singularly perturbed boundary-value problems using grid equidistribution, Computers Mathematics with Applications, 60, 1924-1939, 2010. (MR 2719712)
• H. Ramos, J. Vigo-Aguiar, S. Natesan, R. Garcia-Rubio, M.A. Queiruga, Numerical Solution of Nonlinear Singularly Perturbed Problems on Nonuniform meshes by using a Non-Standard Algorithm, Journal of Mathematical Chemistry, 48(1), 38-54, 2010. (MR 2657913)
• J. Mohapatra, S. Natesan, Uniform Convergence Analysis of Finite Difference Scheme for Singularly Perturbed Delay Differential Equation on an Adaptively Generated Grid, Numerical Mathematics: Theory, Methods and Applications, 3 (1), 1-22, 2010. (MR 2681554)
• C. Clavero, R.K. Bawa, S. Natesan, A Robust Second-Order Numerical Method for Global Solution and Global Normalized Flux of Singularly Perturbed Self-Adjoint Boundary-Value Problems, International Journal of Computer Mathematics, 86 (10-11), 1731-1745, 2009.(MR 2573169)
• R. Deb, S. Natesan, Higher-Order Time Accurate Numerical Methods for Singularly Perturbed Parabolic Partial Differential Equations, International Journal of Computer Mathematics, 86(7), 1204-1214, 2009. (MR 2537921)
• K. Mukherjee, S. Natesan, Parameter-Uniform Hybrid Numerical Scheme for Time-Dependent Convection-Dominated Initial-Boundary-Value Problems, Computing, 84 (3-4), 209-230, 2009. (MR2506261)
• R.K. Bawa, S. Natesan, An Efficient Hybrid Numerical Scheme for Convection- Dominated Boundary-Value Problems, International Journal of Computer Mathematics, 86 (2), 261-273, 2009. (MR2488027)
• B.S. Deb, S. Natesan, Richardson Extrapolation Method for Singularly Perturbed Coupled System of Convection-Diffusion Boundary-Value Problems, CMES: Computer Modeling in Engineering Sciences, 38(2), 179-200, 2008. (MR2502155)
• S. Natesan, R. Deb, A Robust Numerical Scheme for Singularly Perturbed Parabolic Reaction-Diffusion Problems, Neural, Parallel and Scientific Computations, 16, 419-434, 2008. (MR2768416)
• K. Mukherjee, S. Natesan, An Efficient Numerical Scheme for Singularly Perturbed Parabolic Problems with Interior Layers, Neural, Parallel and Scientific Computations, 16, 405-418, 2008.(MR2768415)
• J. Mohapatra, S. Natesan, Uniformly Convergent Second-Order Method for Singularly Perturbed Delay Differential Equations, Neural, Parallel and Scientific Computations, 16, 353-370, 2008.(MR2768412)
• S. Natesan, R.K. Bawa, Second-order Numerical Scheme For Singularly Perturbed Reaction-Diffusion Robin Problems, Journal of Numerical Analysis, Industrial and Applied Mathematics, 2(3-4), 177-192, 2007.(MR2376088)
• S. Natesan, B.S. Deb, A Robust Computational Method for Singularly Perturbed Coupled System of Reaction-Diffusion Boundary-Value Problems, Applied Mathematics and Computation, 188 (1), 353-364, 2007. (MR2327123)
• S. Natesan, R.K. Bawa, C. Clavero, Uniformly Convergent Compact Numerical Scheme for the Normalized Flux of Singularly Perturbed Reaction-Diffusion Problems, International Journal of Information and Systems Sciences, 3(2), 207-221, 2007.(MR2297048)
• R.K. Bawa, and S. Natesan, Parallel Implementation of a Spline Based Computational Approach for Singular Perturbation Problems, Lecture Notes in Computer Science, 4297, 254-262, 2006.
• V. Shanthi, N. Ramanujam, S. Natesan, Fitted Mesh Method for Singularly Perturbed Reaction-Convection-Diffusion Problems with Boundary and Interior Layers, Journal of Applied Mathematics Computing, 22 (1-2), 49-65, 2006.(MR2248360)
• S. Natesan, R.K. Bawa, C. Clavero, An -Uniform Hybrid Scheme for Singularly Perturbed 1-D Reaction-Diffusion Problems, Numerical Mathematics and Advanced Applications, 1079-1087, Springer, Berlin, 2006.(MR2303740)
• J. Vigo-Aguiar, S. Natesan, An Efficient Numerical Method for Singular Perturbation Problems, Journal of Computational and Applied Mathematics, 192, 132-141, 2006.(MR2226996)
• C. Conca, S. Natesan, M. Vanninathan, Numerical Experiments with Bloch-Floquet Approach in Homogenization, International Journal for Numerical Methods in Engineering, 65 (9), 1444-1471, 2006.(MR2199541 2006h:35010)
• R.K. Bawa, S. Natesan, A Computational Method for Self-adjoint Singular Perturbation Problems Using Quintic Spline, Computers & Mathematics with Applications, 50(8-9), 1371-1382, 2005. (MR 2175596)
• R.K. Bawa, S. Natesan, Uniformly Convergent Computational Technique for Singularly Perturbed Self-adjoint Mixed BoundaryValue Problems, Lecture Notes in Computer Science, 3516, 1104-1107, 2005.
• F. Duarte, R. Gormaz. S. Natesan, Arbitrary Lagrangian-Eulerian method for Navier-Stokes equations with movingboundaries, Computer Methods in Applied Mechanics and Engineering, 193 (45-47),4819-4836, 2004. (MR 2097758)
• J. Vigo-Aguiar, S. Natesan, A Parallel Boundary Value Technique for Singularly Perturbed Two-Point BoundaryValue Problems, The Journal of Supercomputing, 27 (2), 195-206, 2004.
• S. Natesan, J. Jayakumar, J. Vigo-Aguiar, Parameter Uniform Numerical Method for Singularly Perturbed Turning Point Problems Exhibiting Boundary Layers, Journal of Computational and Applied Mathematics, 158, 121-134, 2003.MR2013610 (2004j:65096)
• C. Conca, S. Natesan, Numerical Methods for Elliptic Partial Differential Equations with Rapidly Oscillating Coefficients, Computer Methods in Applied Mechanics and Engineering, 192(1-2), 47-76, 2003.(MR 1951405)
• S. Natesan, J. Vigo-Aguiar, N. Ramanujam, A Numerical Algorithm for Singular Perturbation Problems Exhibiting Weak Boundary Layers, Computers Mathematics with Applications, 45, 469-479, 2003.(MR 1991382)
• S. Natesan, N. Ramanujam, 'Shooting Method' for the Solution of Singularly Perturbed Two-Point Boundary-Value Problems Having Less Severe Boundary Layers, Applied Mathematics and Computation, 133(2-3), 623-641, 2002. (MR 1924642 2003f:65138)
• S. Natesan, N. Ramanujam, An Asymptotic-Numerical Method for Singularly Perturbed Robin Problems - I, Applied Mathematics and Computation, 126(1), 97-107, 2002. (MR 1868149 2002j:34090)
• S. Natesan, ;Booster Method; for Singularly Perturbed Robin Problems - II, International Journal of Computer Mathematics, 78(1), 141-152, 2001. (MR 1893863 2003c:65059)
• J. Vigo-Aguiar, L.M. Quintales, S. Natesan, An Efficient Parallel Algorithm for the Numerical Solution of Schrödinger Equation, Lecture Notes in Computer Science, 1981, 262-270, 2001. (MR 1907282 2003e:65187)
• S. Natesan, N. Ramanujam, ;Booster Method; for Singularly Perturbed Robin Problems-I, International Journal of Computer Mathematics, 76(2), 191-202, 2000.(MR 1813315 2001k:65121)
• S. Natesan, N. Ramanujam, A ;Booster Method; for Singularly Perturbed One-Dimensional Reaction-Diffusion Neumann Problems, Journal of Optimization Theory and Applications, 104(1), 175-194, 2000. (MR 1741396 2001c:65090)
• S. Natesan, N. Ramanujam, 'Shooting Method' for Singularly Perturbed One-Dimensional Reaction-Diffusion Neumann Problems, International Journal of Computer Mathematics, 72(3), 383-393, 1999. (MR 1734789)
• S. Natesan, N. Ramanujam, A ;Booster Method; for Singular Perturbation Problems Arising in Chemical Reactor Theory by Incorporation of Asymptotic Approximations, Applied Mathematics and Computation, 100(1), 27-48, 1999. (MR 1665904 99i:65078)
• S. Natesan, N. Ramanujam, Improvement of Numerical Solution of Self-Adjoint Singular Perturbation Problems by Incorporation of Asymptotic Approximations, Applied Mathematics and Computation, 98(2-3), 119-137, 1999. (MR 1659904 2000f:65067)
• S. Natesan, N. Ramanujam, Booster Method for Singularly Perturbed One-Dimensional Convection -Diffusion Neumann Problems, Journal of Optimization Theory and Applications, 99(1), 53-72, 1998.(MR 1653245 99j:65128)
• S. Natesan, N. Ramanujam, Initial-Value Technique for Singularly Perturbed Turning Point Problems Exhibiting Twin Boundary Layers, Journal of Optimization Theory and Applications, 99(1), 37-52, 1998. (MR 1653241 99h:34022)
• S. Natesan, N. Ramanujam, 'Shooting Method' for Singular Perturbation Problems Arising in Chemical Reactor Theory, International Journal of Computer Mathematics, 70(2), 251-262, 1998. (MR 1712497)
• S. Natesan, N. Ramanujam, A Computational Method for Solving Singularly Perturbed Turning Point Problems Exhibiting Twin Boundary Layers, Applied Mathematics and Computation, 93(2-3), 259-275, 1998. (MR 1629390 99c:65146)
• S. Natesan, N. Ramanujam, Initial-Value Technique for Singularly Perturbed Boundary-Value Problems for Second Order Ordinary Differential Equations Arising in Chemical Reactor Theory, Journal of Optimization Theory and Applications, 97(2), 455-470, 1998. (MR 1625108 99a:34038)

See the following websites for most of my publications:

Book Chapters

• S. Natesan, Numerical Methods for Differential Equations, pp. 173-213, Applied Mathematics, Editors: U. Basu, B.N. Mandal, Narosa Publishing House, New Delhi, 2008.
• S. Natesan, Efficient Numerical Methods for Singularly Perturbed Differential Equations, pp. 329-355, Mathematical Modeling with Multidisciplinary Applications, Editor: X-S. Yang, John Wiley & Sons, Inc., New Jersey, 2013.

International Conferences

• S. Natesan, J. Vigo-Aguiar, A Parallel Boundary-Value Technique for Singularly Perturbed Two-Point Boundary-Value Problems, pp. 29-35, Proceedings of the 2000 International Conference on Parallel and Distributed Processing Technology and Applications, Las Vegas, USA, Editor: H. Arabina, CSREA Press, Athens, GA, 2000.
• J. Vigo-Aguiar, M.L. Quintales, S. Natesan, An Efficient Parallel Algorithm for the Numerical Solution of Schrödinger Equation, pp. 231-239, VECPAR 2000, Proceedings of the IV-International Meeting on Vector and Parallel Processing, University of Porto, Portugal.
• First Latin American Congress of Mathematicians, Institute of Pure and Applied Mathematics (IMPA), Rio de Janeiro, Brazil, July 31 - August 4, 2000.
• C. Conca, S. Natesan, M. Vanninathan, Numerical Solution of Elliptic Partial Differential Equations by Bloch Waves Method, pp. 63-83, Proceedings of the XVII CEDYA: Congress on DifferentialEquations and Applications/VII Congress on Applied Mathematics, University of Salamanca,Salamanca, Spain, 2001. (MR 1873642 2002k:65215)
• C. Conca, S. Natesan, M. Vanninathan, Numerical Solution of Elliptic Partial Differential Equations with rapidly oscillating coefficients by Bloch Wave Method, Proceedings of the II International Conference on Theoretical, Applied, Computational and Experimental Mechanics, Indian Institute of Technology, Kharagpur, 2001.
• S. Natesan, J. Jayakumar, J. Vigo-Aguiar, Uniformly Convergent Numerical Method for Singularly Perturbed Turning Point Problems, International Conference on Computational and Mathematical Methodsin Science and Engineering (CMMSE 2002), Alicante, Spain, 2002.
• S. Natesan, J.L. Gracia, C. Clavero, Singularly Perturbed Boundary-Value Problems with Two Small Parameters - A Defect Correction Approach, pp. 1-6, Proceedings of the International Conference on Boundary and Interior Layers - Computational Asymptotic Methods (BAIL 2004), ONERA - Centre de Toulouse, France.
• S.Natesan, R.K. Bawa, A Parallel Computational Methods for Self-Adjoint Singular Perturbation Problems, pp. 220-226, Proceedings of Asia Pacific Conference ObComAPC-2004, Parallel and Distributed Computing Technologies, Vellore Institute of Technology, Vellore, 2004.
• S. Natesan, Numerical Solution of Multi-Scale Elliptic Problemsby Bloch-Floquet Approach, International Conference on Number Theory and Fourier Techniques (ICNFT'04), Srinivasa Ramanujan Centre, Sastra Deemed University, Kumbakonam, December 21-22, 2004.
• R.K. Bawa, S. Natesan, Quintic Spline Based Computational Scheme for Singularly Perturbed Convection-Diffusion Problems, pp. 24-28, IEEE Proceedings of the 19thInternational Symposium on High Performance Computing Systems and Applications (HPSC'05), University of Guelph, Ontario, Canada, 2005.
• S. Natesan, R.K. Bawa, C. Clavero, An Uniform Hybrid Scheme for Singularly Perturbed Reaction-Diffusion Problems, The Sixth European Conference on Numerical Mathematics and Advanced Applications (ENUMATH 2005), University of Santiago de Compostela, Spain, 2005.
• S. Natesan, R.K. Bawa, Second-Order Numerical Scheme for Singularly Perturbed Reaction-Diffusion Robin Problems, South African Society for Numerical and Applied Mathematics (SANUM 2006), University of Stellenbosch, South Africa, April 3 - 5, 2006.
• R.K. Bawa, S. Natesan, Second-Order Uniformly Convergent Scheme for Singularly Perturbed Convection-Diffusion Problems, pp. 42-51, Proceedings of the International Conference on Computational and Mathematical Methods in Science and Engineering, CMMSE 2007, Chicago, 20 - 23 June 2007.
• S. Natesan, R. Deb, Efficient Numerical Schemes for Singularly Perturbed Parabolic Initial-Boundary-Value Problems, 6th International Congress on Industrial and Applied Mathematics (ICIAM 2007), Zurich, Switzerland, 16-20 July 2007.
• C. Clavero, R.K. Bawa, S. Natesan, An almost second-order uniform convergent computational technique for global solution and global normalized flux of singularlyperturbed reaction-diffusion problems, Proceedings of the International Conference on Computational and Mathematical Methods in Science and Engineering, CMMSE 2008, Murcia, Spain, 13 - 17 June 2008.
• S. Natesan, A second-order robust numerical method for system of singularly perturbed boundary-value problems, General Linear Methods Auckland Conference on Numerical Ordinary Differential Equations (GLADE 2008), University of Auckland, New Zealand, 14 - 18, July 2008.
• S. Natesan, Second-order uniformly convergent hybrid numerical scheme for singularly perturbed problems of mixed parabolic-elliptic type, International Conference on Scientific Computation and Differential Equations (Sci-CADE 2011), University of Toronto, Toronto, Canada, 11-15, July 2011.
• S. Natesan, S. Gowrisankar, Robust numerical scheme for singularly perturbed parabolic initial-boundary-value problems, International Congress on Industrial and Applied Mathematics, (ICIAM 2011), Vancouver, Canada, 18-22, July 2011.
• S. Natesan, S. Gowrisankar,Robust computational method for singularly perturbed parabolic initial-boundary-value problems on adaptive grid, European Numerical Mathematics and Advanced Applications (ENUMATH 2011), University of Leicester, Leicester, UK, 5-9, September 2011.
• S. Natesan, S. Gowrisankar, Uniformly Convergent Numerical Scheme for Singularly Perturbed Delay Parabolic Convection-Diffusion Problems on Shishkin Mesh, International Conference: East Asian Section of SIAM (EASIAM 2014), Pattaya, Thailand, June 23-25, 2014.
• S. Natesan, S. Gowrisankar, Robust Numerical Scheme for Singularly Perturbed Delay Parabolic PDEs on Equidistributed Grids, Boundary and Interior Layers - Computational Asymptotic Methods (BAIL 2014), Charles University in Prague, Czech Republic, September 15 - 19, 2014.
• S. Natesan, A. Majumdar, Efficient Numerical Scheme for Singularly Perturbed 2D Elliptic BVPs with Discontinuous Coefficients, International Conference on Applied Mathematics, City University of Hong Kong, Hong Kong, May 30 - June 2, 2016.
• S. Natesan, M.K. Singh, Robust numerical scheme for singularly perturbed system of parabolic convection-diffusion PDEs on Shishkin-type meshes, Boundary and Interior Layers - Computational and Asymptotic Methods (BAIL 2016), Beijing Computational Science Research Center, Beijing, August 15 - 19, 2016.
• Maneesh Kumar Singh, S. Natesan, A finite element superconvergence approximations for singularly perturbed system of convection-diffusion problems, AIP Conference Proceedings, 1975, 030016, 2018.
• Gautam Singh and S. Natesan, A Uniformly Convergent NIPG Method for a Singularly Perturbed System of Reaction-Diffusion Boundary-Value Problems, International Conference on Mathematics and Computing (ICMC - 2018) Mathematics and Computing, Springer Proceedings in Mathematics and Statistics, Vol. 253, 429 - 440, 2018.