S. Mandal, R. Mehatari, and Z. Stanic,"Laplacian eigenvalues and eigenspaces of cographs generated by finite sequence", Indian Journal of Pure and Applied Mathematics, Springer, March 2024, 10.1007/s13226-024-00572-w       Article

S. Mandal and R. Mehatari,"On the Seidel spectrum of threshold graphs", Indian Journal of Pure and Applied Mathematics, Springer, June 2023, 10.1007/s13226-023-00436-9       Article

R. Mehatari,"Eigenvalues of multipart matrices and their applications", American journal of combinatorics, vol.2, pp.59-71 2023       Article

P. Cameron, P. Manna, and R. Mehatari,"On finite groups whose power graph is a cograph", Journal of Algebra, vol.591, pp.59-74, Elsvier 2022, 10.1016/j.jalgebra.2021.09.034       Article

P. Manna, P. Cameron, and R. Mehatari,"Forbidden Subgraphs of Power Graphs", Electronic Journal of Combinatorics, vol.28, no.3.4, pp.1-14, Editorial Board Electronic Journal of Combinatorics 2021, 10.37236/9961       Article

R. Mehatari, M. R. Kannan, and A. Samanta,"On the adjacency matrix of a complex unit gain graph", Linear and Multilinear Algebra, Taylor & Francis 2020, 10.1080/03081087.2020.1776672       Article

R. Mehatari and M. R. Kannan,"Eigenvalue bounds for some classes of matrices associated with graphs", Czechoslovac Mathematical Journal, Springer, October 2019       Article

A. Banerjee and R. Mehatari,"On the normalized spectrum of threshold graphs", Linear Algebra and its Applications, vol.530, pp.288-304, Elsvier 2017, 10.1016/j.laa.2017.05.007       Article

A. Banerjee and R. Mehatari,"An eigenvalue localization theorem for stochastic matrices and its application to randic matrices", Linear Algebra and its Applications, vol.505, pp.85-96, Elsvier, September 2016, 10.1016/j.laa.2016.04.023       Article

A. Banerjee and R. Mehatari,"Characteristics polynomial of normalized laplacian for trees", Applied Mathematics and Computation, vol.271, pp.838-844, Elsvier, November 2015, 10.1016/j.amc.2015.09.054       Article