A survey on Hamiltonicity in Cayley graphs and digraphs on different groups GHJ Lanel, HK Pallage, JK Ratnayake, S Thevasha, BAK Welihinda Discrete Mathematics, Algorithms and Applications 11 (05), 1930002, 2019 | 19 | 2019 |

Fractal sets as final coalgebras obtained by completing an initial algebra P Bhattacharya, LS Moss, J Ratnayake, R Rose Horizons of the Mind. A Tribute to Prakash Panangaden: Essays Dedicated to …, 2014 | 8 | 2014 |

Fractal sets as final coalgebras obtained by completing an initial algebra LS Moss, J Ratnayake, R Rose Topology, Algebra, and Categories in Logic, 157, 2013 | 5 | 2013 |

Size multipartite Ramsey numbers for small paths versus books CJ Jayawardene, J Ratnayake Indonesian Journal of Combinatorics 1 (1), 31-40, 2016 | 2 | 2016 |

Z_{p} 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), 2019 | 1 | 2019 |

Presenting the Sierpinski Gasket in Various Categories of Metric Spaces J Ratnayake, A Manokaran, R Jayewardene, V Noquez, LS Moss Applied Categorical Structures 32 (4), 21, 2024 | | 2024 |

A Tale of Two Continents: Factors Influencing Students to Major in Mathematics TMK Wijetunge, K Premadasa, GW Liyanage, B Collins, A Appuhamy, ... Journal of Higher Education Theory and Practice 22 (14), 2022 | | 2022 |

Nested radicals and coinduction principle JK Ratnayake, M Annanthakrishna, JN Senadheera University of Jaffna, 2022 | | 2022 |

K-automorphisms of a weak-crossed product F-algebra over a Galois extension K/F J Ratnayake Journal of Algebra 539, 377-396, 2019 | | 2019 |

Critical Points to Determine Persistence Homology C Asirimath, J Ratnayake, C Weeraddana, N Rajatheva 2019 53rd Asilomar Conference on Signals, Systems, and Computers, 2121-2126, 2019 | | 2019 |

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 |

On the forms of weak crossed product Algebras JK Ratnayake Indiana University, 2013 | | 2013 |