Andrii Khrabustovskyi, Michael Plum, “Spectral properties of an elliptic operator with double-contrast coefficients near a hyperplane”, ASY, 98, no. 1-2, 2016, 91
Delfina Gómez, Sergei A. Nazarov, Rafael Orive-Illera, María-Eugenia Pérez-Martínez, “Spectral gaps in a double-periodic perforated Neumann waveguide”, ASY, 131, no. 3-4, 2023, 385
S. A. Nazarov, “Threshold resonances and virtual levels in the spectrum of cylindrical and periodic waveguides”, Izv. Math., 84, no. 6, 2020, 1105
D. I. Borisov, P. Exner, “Gap opening in two-dimensional periodic systems”, Commun. Contemp. Math., 23, no. 01, 2021, 1950080
Konstantin Pankrashkin, Nicolas Popoff, “An effective Hamiltonian for the eigenvalue asymptotics of the Robin Laplacian with a large parameter”, Journal de Mathématiques Pures et Appliquées, 106, no. 4, 2016, 615
S. A. Nazarov, “Asymptotics of Eigenvalues in Spectral Gaps of Periodic Waveguides with Small Singular Perturbations”, J Math Sci, 243, no. 5, 2019, 746
S. A. Nazarov, “Gap Opening Around a Given Point of the Spectrum of a Cylindrical Waveguide by Means of a Gentle Periodic Perturbation of Walls”, J Math Sci, 206, no. 3, 2015, 288
I. Y. Popov, I. V. Blinova, A. I. Popov, “A model of a boundary composed of the Helmholtz resonators”, Complex Variables and Elliptic Equations, 66, no. 8, 2021, 1256
S. A. Nazarov, “Anomalies of Acoustic Wave Scattering Near the Cut-off Points of Continuous Spectrum (A Review)”, Acoust. Phys., 66, no. 5, 2020, 477
Sergei Aleksandrovich Nazarov, “Пороговые резонансы и виртуальные уровни в спектре цилиндрических и периодических волноводов”, Известия Российской академии наук. Серия математическая, 84, no. 6, 2020, 73