Academic Staff member

Snr Prof. Jayantha Pasdunkorale Arachchige

Senior Professor

B.Sc University of Kelaniya
M.Sc University of Sri Jayewardenepura
Ph.D Queensland University of Technology

jayantha@maths.ruh.ac.lk
0412227018/14111

LinnkedIn ResearchGate Google Scholar

  • MAT112d Differential Equations   -       2017,  2018,  2019
  • MAT322b Complex Variables   -       2017
  • MSP324a Complex Analysis   -       2017
  • Partial Differential Equations
  • Finite Difference Method
  • Finite Volume Method
  • Parameter Estimation Techniques
  • Linear Regression Methods

    Journals

  • K. A. Suresh Nisansala and P. A. Jayantha, 2018, "Finite Volume Method for Simulating the Resistance Heating of a Rectangular Metal Sheet", 15th Academic Sessions of University of Ruhuna, (March, 2018), Sri Lanka, http://www.math.ruh.ac.lk/~jayantha/research_articles/PAJ_KASN_2018_Aca_Sess_UoR_p_9.pdf
  • K. K. L. B. Adikaram and P. A. Jayantha, 2017, "Zero mean transformation technique that is not affected by missing or removed data", 7th International Symposium 2017 on Multidisciplinary Research for Sustainable Development, South Eastern University of Sri Lanka, (December, 2017), http://ir.lib.seu.ac.lk/bitstream/handle/123456789/3037/ID%2081.pdf?sequence=1&isAllowed=y
  • K. K. L. B. Adikaram and P. A. Jayantha, 2016, "A robust technique to transform time series with missing data into a zero mean series", Peradeniya University International Research Sessions, (November, 2016), Sri Lanka, http://www.math.ruh.ac.lk/~jayantha/research_articles/WillBEAvailableSoon.pdf
  • K. G. P. Hansani and P. A. Jayantha, 2015, "A case study of parameter estimation in mathematical modelling", 12th Academic Sessions of University of Ruhuna, (March, 2015), Sri Lanka, http://www.math.ruh.ac.lk/~jayantha/research_articles/PAJ_KGPH_2015_Aca_Sess_UoR_88.pdf
  • K. D. Prsangika and P. A. Jayantha, 2015, "A study on determination of weight parameters of Double Exponential Smoothing technique for Time Series", 12th Academic Sessions of University of Ruhuna, (March, 2015), Sri Lanka, http://www.math.ruh.ac.lk/~jayantha/research_articles/PAJ_KDP_2015_Aca_Sess_UoR_83.pdf
  • Pasdunkorale A. Jayantha and M. K. Abeyratne, 2015, "A study on parameter estimation in modelling using a model independent program - PEST", Proceedings of 2nd Ruhuna International Science & Technology Conference (January, 2015), University of Ruhuna, Sri Lanka, pp. 78, http://www.math.ruh.ac.lk/~jayantha/research_articles/PAJ_KDP_2015_Aca_Sess_UoR_83.pdf
  • Jayantha Pasdunkorale A. and Graeme J. Pettet, 2014, "A Finite Volume method with linearisation in time for the solution of advection-reaction-diffusion systems" Applied Mathematics and Computation, Vol. 231, pp. 445-462, http://www.sciencedirect.com/science/article/pii/S0096300314000186
  • P. A. Jayantha and I. W. Turner, 2005, "A Second Order Control-Volume Finite-Element Least-Squares Strategy for Simulating Diffusion in Strongly Anisotropic Media" Journal of Computational Mathematics, Vol. 23(1), pp. 1-16. http://www.math.ruh.ac.lk/~jayantha/research_articles/Jayantha_Turner_2005_JCM.pd
  • Jayantha Pasdunkorale A. and Ian W. Turner, 2003, "A Second Order Finite Volume Technique for Simulating Transport in Anisotropic Media", The International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 13(1), pp. 31-56 . Received a Highly Commended Award of Excellence from Editor. http://dx.doi.org/10.1108/09615530310456750
  • Pasdunkorale A. Jayantha and Ian W. Turner, 2003, "On the Use of Surface Interpolation Techniques in Generalised Finite Volume Strategies for Simulating Transport in Highly Anisotropic Porous Media", Journal of Computational and Applied Mathematics , Vol. 152, pp. 199-216. http://www.math.ruh.ac.lk/~jayantha/research_articles/Jayantha_Turner_2003_J_CAM.pdf
  • Jayantha Pasdunkorale A. and Ian W. Turner, 2003,"Generalised Finite Volume Strategies for Simulating Transport in Strongly Orthotropic Porous Media", Australian & New Zealand Industrial and Applied Mathematics Journal, Vol. 44(E), pp. C443-C463. http://www.math.ruh.ac.lk/~jayantha/research_articles/Jayantha_Turner_2003_ANZIAM_Journal.pdf
  • P. A. Jayantha and I. W. Turner, 2001,"A Comparison of Gradient Approximations for use in Finite-Volume Computational Models for Two-Dimensional Diffusion Equations", Numerical Heat Transfer, Part B: Fundamentals, Vol 40, No.5, pp. 367-390. http://dx.doi.org/10.1080/104077901753243179
  • P. A. Jayantha and G. K. Watugala , 1998,"An Analysis of Direct Resistance Heating of a Circular Sheet Metal using Finite Difference Techniques '' , Proceedings of First Annual Research Sessions (Mar. 1998), Faculty of Graduate Studies, University of Sri Jayewardenepura, Nugegoda, Sri Lanka, pp. 265-282,
  • P.A.Jayantha and G.K.Watugala, 1998,"An Analysis of Direct Resistance Heating of a Circular Sheet Blank using moving electrodes", Proceedings of Fifty Fourth Annual Session: Part I - Abstracts, Sri Lanka Association for the Advancement of Science (SLAAS), pp. 241-242
  • Financial support from CIMPA (International Centre for Pure and Applied Mathematics) to participate in CIMPA-IMAMIS-PHILIPPINES School on Numerical Methods for Partial Differential Equations in Manila, Philippines(August/September 2007) 2007
  • Financial support from Lahore University of Management Sciences to participate in 2nd Summer Workshop on Theoretical Computer Science. (June/July 2003) 2003
  • Financial support from the Australian National University (ANU) and the Queensland University of Technology to attend the Summer School in Computational Mathematics organised by the Department of Mathematical Sciences at ANU, Canberra. (January 2002 2002
  • Received financial support under the Queensland University of Technology (QUT) Postgraduate Conference Grants-in-Aid Scheme to participate the International Conference on Recent Advances in Computational Mathematics held in Matsuyama, Japan in October 2001 October 2001
  • Received an award to cover living allowances from the Faculty of Science at QUT for the period of my PhD programme. (1999-2002) 1999
  • International Postgraduate Research Scholarship (IPRS) for undertaking studies towards PhD in Mathematics from the Queensland University of Technology, Australia. (1999-2002) 1999
  • Merit Scholarship for the Masters Degree in Industrial Mathematics from the University of Sri Jayewardenepura, Sri Lanka. (1997/1998) 1997
  • Head, Department of Computer Science - University of Ruhuna - from 2003-02-01 to 2006-01-31
  • Head, Department of Mathematics - University of Ruhuna - from 2016-03-01 to 2016-07-16
  • Director, Computer Unit - University of Ruhuna - from 2003-02-01 to 2006-01-31
  • Head, Department of Mathematics - University of Ruhuna - from 2007-06-01 to 2007-07-17
  • Dean, Faculty of Science - University of Ruhuna - from 2007-07-18 to 2010-07-17
  • Dean, Faculty of Science - University of Ruhuna - from 2016-07-17 to 2019-07-16
  • Dean, Faculty of Science - University of Ruhuna - from 2019-07-17 to 2022-07-16