A. Hassannezhad: Eigenvalues of the Laplacian and extrinsic geometry (preprint) 2012 A. Hassannezhad: Eigenvalues of perturbed Laplace operators on compact manifolds (preprint) 2012 A. Hassannezhad, G. Kokarev: Sub-Laplacian eigenvalue bounds on sub-Riemannian manifolds (preprint) 2014 A. Rod Gover, A. Hassannezhad, D. Jakobson, M. Levitin: Zero and negative eigenvalues of the conformal Laplacian (preprint) 2015 A. Hassannezhad, G. Kokarev, I. Polterovich: Eigenvalue inequalities on Riemannian manifolds with a lower Ricci curvature bound (preprint) 2015 A. Hassannezhad, A. Laptev: Eigenvalue bounds of mixed Steklov problems (preprint) 2017 A. Hassannezhad, A. Siffert: A note on Kuttler-Sigillito's inequalities (preprint) 2017 A. Hassannezhad, L. Miclo: Higher order Cheeger inequalities for Steklov eigenvalues (preprint) 2017 B. Colbois, A. Girouard, A. Hassannezhad: The Steklov and Laplacian spectra of Riemannian manifolds with boundary (preprint) 2018 A. Hassannezhad, A. Siffert: Escobar constants of planar domains (preprint) 2019 A. Hassannezhad, D. Sher: Nodal count for Dirichlet-to-Neumann operators with potential (preprint) 2021 A. Hassannezhad, D. Sher: On Pleijel's nodal domain theorem for the Robin problem (preprint) 2023