Characterization of eigenfunctions of the Laplace-Beltrami operator using Fourier multipliers, Journal of Functional analysis, 279 (2020), no. 11, 108737, 43 pp.
Co-author: Rudra P. Sarkar
Mean value property in limit for eigenfunctions of the Laplace-Beltrami operator, Transactions of the American Mathematical Society, 373 (2020), 4735-4756.
Co-authors: Rudra P. Sarkar and Swagato K. Ray
3.Characterization of eigenfunctions of the Laplace--Beltrami operator through heat propagation in small time, Monatshefte fur Mathematik, 192 (2020), 4, 883-903.
Co-author: Rudra P. Sarkar
4. Large time behaviour of heat propagator, Bull. Sci. Math. 167 (2021), 102955, 25 pp.
Co-authors: Rudra P. Sarkar and Swagato K. Ray
5. Asymptotic mean value property for eigenfunctions of the Laplace-Beltrami operator on Damek-Ricci spaces, Ann. Mat. Pura Appl. (4) 201 (2022), 1583-1605.
Co-author: Rudra P. Sarkar
6.Generalized mean value property in limit for eigenfunctions of the Laplacian on R^n, Colloq. Math. 169 (2022), no. 2, 255-267.
7.$L^p$-asymptotic behaviour of approximate identities on homogeneous groups, Colloq. Math. 177 (2024), no. 1-2, 175--194.
Co-author: Jayanta Sarkar
8.Asymptotic mean value property for joint eigenfunctions of G-invariant differential operator, Mathematische Nachrichten, 298 (2025), no. 2, 636–643.
Co-author: Rudra P. Sarkar
9. $L^p$-asymptotic behaviour of Solutions of the Heat Equation on Riemannian Symmetric Spaces of Noncompact Type, Journal d'Analyse Mathématique, accepted.
Co-authors: Jayanta Sarkar and Swagato K. Ray
Furstenberg's Characterization of harmonic functions and Delsarte's two radius theorem, generalization for eigenfunctions.
Co-author: Rudra P. Sarkar