Academic Staff member

Dr. D.M. Samarathunga

Senior Lecturer Grade II

B.Sc University of Peradeniya, Sri Lanka
Ph.D Wayne State University, USA

dms@maths.ruh.ac.lk
0412222681/14109

LinnkedIn ResearchGate Google Scholar

  • imt312b Mathematical Modelling   -       2019
  • MAT121b Algebra   -       2019
  • MSP3184 Measure Theory with Applications   -       2019
  • MSP4244 Operation Research for Applied Mathematics   -       2019
  • Bilevel Programming,
  • Optimization,
  • Operations Research

    Journals

  • An Efficient Two-phased Heuristic for Solving Capacitated Vehicle Routing Problem, International Journal of Engineering Science Invention, 2019, M.K.D.D. Sandaruwan, D.M. Samarathunga, W.B. Daundasekara
  • Heuristic algorithms for solving capacitated vehicle routing problem: an improved algorithm and a case study to illustrate, M.K.D.D. Sandaruwan, D.M. Samarathunga, W.B. Daundasekara Submitted to Ceylon Journal of Science (https://cjs.sljol.info/).
  • Methods Of Variational Analysis In Pessimistic Bilevel Programming, 2010, Wayne State University Dissertations. 126, Dassanayaka, Samarathunga M.

    • Conference (Abstracts)

  • Impact of Crossover Operators on the Genetic Algorithem to Solve Capacitated Vehicle Routing Problem, M.K.D.D. Sandaruwan, D.M. Samarathunga, W.B. Daundasekara, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, 2019.
  • Optimal Land Allocation for Paddy Cultivation in Sri Lanka, S.R.T. Kulasekara, D.M. Samarathunga, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, 2019.
  • A Novel Heuristic for Solving Capacitated Vehicle Routing Problem, M.K.D.D. Sandaruwan, D.M. Samarathunga, W.B. Daundasekara, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, 2018.
  • A Two Phased Heuristic Approach for Capacitated Vehicle Routing Problem, M.K.D.D. Sandaruwan, D.M. Samarathunga, W.B. Daundasekara, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, 2017.
  • An Implementation of Goal Programming Model to Analyze the Factors Affecting on Early Childhood Development; Case Study, P.H.R.B.D.KUMARIHAMY, D.M. Samarathunga, Uwa Wellssa Research Symposium, 2017.
  • Phase Space Theta Error Control with General Explicit Runge Kutta Methods for Dynamical Systems, S. Thilaganathan, R Vigneswaran, DM Samarathunga, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, 2016.
  • Use of Activity Based Instructional Method to enhance performance on Algebraic Inaqualities in Grade Nine Students in Jaffana Educational Zone, N Prashanthan, DM Samarathunga, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, 2016.
  • Effects of Activity Based Learning on Conceptual Understanding of Fractions; A Study of Grade Seven Students in Jaffna Educational Zone, R. Dhinesh and D.M. Samarathunga, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, 2016.
  • Multi-objective fuzzy linear programming in agricultural production planning, H.M.I.U. Herath, D.M. Samarathunga, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, 2015.
  • An algorithm to find the optimum solution of a univariate function, M.M.R. Balasooriya, D.M. Samarathunga, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, 2015.
  • Effects of conceptual change instruction on achievement, attitudes and motivation of Ninth graders’ Mathematicsi in Maldives, M. Amir, D.M. Samarathunga, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, 2014.
  • Paul Weiss Award for the scholastic achievement (Wayne State University, USA) 2010
  • University award for academic excellence (University of Peradeniya) 2002