N. Biswas, U. Das, M. Ghosh: On the optimization of the first weighted eigenvalue Proc. Roy. Soc. Edinburgh Sect. A 2022 A. M. H. Chorwadwala, M. Ghosh: Optimal Shapes for the First Dirichlet Eigenvalue of the $p$-Laplacian and Dihedral symmetry J. Math. Anal. Appl. 2022 M. Ghosh, S. Verma: Reverse Faber-Krahn inequality for the $p$-Laplacian in Hyperbolic space J. Math. Anal. Appl. 2022 T. V. ANOOP, V. Bobkov, M. Ghosh: Neumann domains of planar analytic eigenfunctions (preprint) http://arxiv.org/abs/2410.07811 2024 T. V. ANOOP, M. Ghosh: Reverse Faber-Krahn inequalities for Zaremba problems Topol. Methods Nonlinear Anal. 2025 M. Ghosh: Isoperimetric inequalities for the fractional composite membrane problem Arch. Math. (Basel) 2025 M. Ghosh: On the optimization of the first weighted eigenvalue of the fractional Laplacian Math. Nachr. Vol. 298, p. 32513271, 2025 T. V. ANOOP, V. Bobkov, M. Ghosh: Reverse Faber-Krahn inequality for planar doubly connected domains (preprint) http://arxiv.org/abs/2509.17480 2025 M. Ghosh, A. Kachmar: Isoperimetric inequality with zero magnetic field in doubly connected domains (preprint) http://arxiv.org/abs/2505.08595 2025