| Trends of rainfall in Sri Lanka over the last century H Jayawardene, DUJ Sonnadara, DR Jayewardene Sri Lankan Journal of Physics 6, 7-17, 2005 | 135 | 2005 |
| A Markov chain probability model to describe wet and dry patterns of weather at Colombo DUJ Sonnadara, DR Jayewardene Theoretical and applied climatology 119, 333-340, 2015 | 38 | 2015 |
| Forecasting the occurrence of rainfall in selected weather stations in the wet and dry zones of Sri Lanka H Perera, DUJ Sonnadara, DR Jayewardene Sri Lankan Journal of Physics 3, 39-52, 2002 | 36 | 2002 |
| Interannual variability of precipitation in Sri Lanka H Jayawardene, DR Jayewardene, DUJ Sonnadara Journal of National Science Foundation of Sri Lanka 43 (1), 75-83, 2015 | 26 | 2015 |
| Spatial interpolation of weekly rainfall depth in the dry zone of Sri Lanka H Jayawardene, DUJ Sonnadara, DR Jayewardene Climate Research 29 (3), 223-231, 2005 | 16 | 2005 |
| Categories of Relations and Functional Relations R Jayewardene, O Wyler Applied Categorical Structures 8 (1-2), 279-305, 2000 | 14 | 2000 |
| Strengthening Science Education in Sri Lanka H Aturupane, V Dissanayake, R Jayewardene, M Shojo, U Sonnadara International Bank for Reconstruction and Development/The World Bank, 2011 | 11* | 2011 |
| Strengthening Mathematics Education in Sri Lanka H Aturupane, V Dissanayake, R Jayewardene, M Shojo, U Sonnadara International Bank for Reconstruction and Development/The World Bank, 2011 | 6 | 2011 |
| Relations and functional relations in categories, with examples from fuzzy set theory RD Jayewardene Carnegie Mellon University, 1995 | 2 | 1995 |
| Zp as a final coalgebra obtained by Cauchy completing the initial algebra A Manokaran, J Ratnayake, R Jayewardene Journal of the National Science Foundation of Sri Lanka 47 (1), 105-112, 2019 | 1 | 2019 |
| Interannual variability of precipitation in Sri Lanka H Jayawardene, DR Jayewardene, DUJ Sonnadara Journal Of Manuscript Studies 12 (2), 10-17, 2022 | | 2022 |
| Representing the formal structure of mathematical concepts incorporating learning taxonomies BT Liyanaarachchi, JK Ratnayake, R Jayewardene, S Gunawardene International Conference on Multidiciplinary Approaches in Science, 112, 2021 | | 2021 |
| Presenting the Sierpinski Gasket in Various Categories of Metric Spaces J Ratnayake, A Manokaran, R Jayewardene, V Noquez, LS Moss arXiv preprint arXiv:2110.06916, 2021 | | 2021 |
| Sierpinski Gasket as a Final Coalgebra Obtained by Cauchy Completing the Initial Algebra J Ratnayake, A Manokaran, R Jayewardene arXiv preprint arXiv:1907.09933, 2019 | | 2019 |
| On the Initial Algebra and Final Co-algebra of some Endofunctors on Categories of Pointed Metric Spaces A Manokaran, R Jayewardene, J Ratnayake arXiv preprint arXiv:1710.07417, 2017 | | 2017 |
| Preliminary results of Markov model approach in forecasting wet/dry condition over short periods DUJ Sonnadara, DR Jayewardene, H Perera Proceedings of the Annual Sessions, SLAAS 56, E1-209, 2000 | | 2000 |
Upul SonnadaraProfessor of Physics, University of Colombo, Sri LankaVerified email at phys.cmb.ac.lk
