
R. Sampathkumar, R. Rajarajchozhan, "Twin edge colorings of certain square graphs and product graphs.", Electronic Journal of Graph Theory and Applications, Volume 4, Number 1, 2016, pp. 7993. 2016.  

R. Sampathkumar, N. Paramaguru, "Graphs with vertexcoloring and detectable 2edgeweighting.", AKCE International Journal of Graphs and Combinatorics, Volume 13, Number 2, 2016, pp. 146156. 2016.  

R. Sampathkumar, R. Rajarajchozhan, "Determinant of Some Special Matrices.", Bulletin of Institute of Combinatorics and Applications, Volume 78, Number 1, 2016, pp. 8392. 2016.  

R. Sampathkumar, V. Sriram, "Orthogonal double covers of 4regular circulant graphs.", Utilitas Mathematica, Volume 98, Number 1, 2015, pp. 8595. 2015.  

R. Lakshmi, G. Rajasekaran and R. Sampathkumar, "Optimal orientations of subgraphs of complete bipartite graphs.", Transactions on Combinatorics, Volume 4, Number 1, 2015, pp. 1929. 2015.  

G. Rajasekaran, R. Sampathkumar, "Butterfly factorizations of complete graphs of even order.", Bulletin of Institute of Combinatorics and Applications, Volume 74, Number 1, 2015, pp. 5972. 2015.  

N. Paramaguru, R. Sampathkumar, "Modular edge colorings of Mycielskian graphs.", Transactions on Combinatorics, Volume 4, Number 3, 2015, pp. 5361. 2015.  

R. Sampathkumar, G. Rajasekaran, "Optimal orientations of some complete tripartite graphs.", Filomat, Volume 29, Number 8, 2015, pp. 16811687. 2015.  

R. Sampathkumar, N. Paramaguru, "Modular chromatic number of Cm□Cn .", Advances in Intelligent Systems and Computing (Springer) , Volume 246 , Number 1, 2014, pp. 331338. 2014.  

R. Sampathkumar, N. Paramaguru, "Modular colorings of join of two special graphs .", Electronic Journal of Graph Theory and its Applications , Volume 2 , Number 2 , 2014, pp. 139149. 2014.  

R. Sampathkumar, S. Srinivasan, "More mutually orthogonal graph squares .", Utilitas Mathematica , Volume 91 , Number 1, 2013, pp. 345354. 2013.  

R. Sampathkumar, P. Kandan, "P4factorization of Cartesian product of complete graphs .", The Journal of Combinatorial Mathematics and Combinatorial Computing , Volume 84 , Number 1, 2013, pp. 127135. 2013.  

R. Sampathkumar, N. Paramaguru, "Modular chromatic number of Cm□Pn .", Trans. Combin., Volume 2, Number 1, 2013, pp. 4772. 2013.  

R. Sampathkumar, V. Sriram, "Packing copies of the ncube into its third power .", Bulletin of the Institute of Combinatorics and its Applications , Volume 62 , Number 1, 2011, pp. 9094. 2011.  

R. Sampathkumar, S. Srinivasan, "Cyclic orthogonal double covers of 4regular circulant graphs .", Discrete Mathematics (Elsevier) , Volume 311, Number 1, 2011, pp. 24172422. 2011.  

R. Sampathkumar, M. Simaringa, "Orthogonal double covers of complete bipartite graphs .", The Australasian Journal of Combinatorics , Volume 49 , Number 1, 2011, pp. 1518. 2011.  

R. Sampathkumar, S. Srinivasan, "Mutually orthogonal graph squares.", Journal of Combinatorial Designs (Wiley) , Volume 17, Number 1, 2009, pp. 369373. 2009.  

R. Sampathkumar, S. Srinivasan, "Cyclic orthogonal double covers of complete graphs by some complete multipartite graphs.", The Journal of Combinatorial Mathematics and Combinatorial Computing , Volume 69, Number 1, 2009, pp. 183189. 2009.  

R. Sampathkumar, V. Sriram, "Orthogonal labellings of graphs.", AKCE International Journal of Graphs and Combinatorics, Volume 5, Number 1, 2008, pp. 5760. 2008.  

R. Sampathkumar, S. Srinivasan, "Graphs with minimum flow number 3.", AKCE International Journal of Graphs and Combinatorics, Volume 3, Number 1, 2006, pp. 131134. 2006.  

R. Sampathkumar, M. Simaringa, "Orthogonal labellings of caterpillars of small diameter.", Bulletin of the Institute of Combinatorics and its Applications , Volume 44, Number 1, 2005, pp. 2936. 2005.  

R. Sampathkumar, M. Simaringa, "Mod sum product graphs from mod sum graphs.", Mano. International Journal of Mathematical Sciences , Volume 1, Number 1, 2001, pp. 3340. 2001.  

R. Balakrishnan, R. Sampathkumar, V. Yegnanarayanan, "Note on the existence of graphs with prescribed coloring parameters.", Discrete Mathematics (Elsevier) , Volume 216, Number 1, 2000, pp. 293297. 2000.  

R. Balakrishnan, R. Sampathkumar, V. Yegnanarayanan, "Extremal graphs in some coloring problems.", Discrete Mathematics (Elsevier) , Volume 186, Number 1, 1998, pp. 1524. 1998.  

R. Balakrishnan, R. Sampathkumar, "Decomposition of regular graphs into KncV2K2.", Discrete Mathematics (Elsevier) , Volume 156, Number 1, 1996, pp. 1929. 1996.  

R. Balakrishnan, R. Sampathkumar, "Decomposition of complete graphs into isomorphic bipartite subgraphs.", Graphs and Combinatorics, SpringerVerlag, Volume 10, Number 1, 1994, pp. 1925. 1994.  

R. Balakrishnan, R. Sampathkumar, "Existence and nonexistence of certain labellings for the graph KncV2K2.", Utilitas Mathematica , Volume 46, Number 1, 1994, pp. 97102. 1994.  

R. Balakrishnan, R. Sampathkumar, "Decompositions of complete tripartite graphs.", Congrsses Numerantium , Volume 93, Number 1, 1993, pp. 115130. 1993.  