Periodic elliptic operators with asymptotically preassigned spectrum. - Andrii Khrabustovskyi (Asymptot. Anal., 2013)

Spectral properties of an elliptic operator with double-contrast coefficients near a hyperplane. - Andrii Khrabustovskyi; Michael Plum (Asymptot. Anal., 2016)

Operator estimates for the crushed ice problem. - Andrii Khrabustovskyi; Olaf Post (Asymptot. Anal., 2018)

Spectrum of the Laplacian on a Domain Perturbed by Small Resonators. - Giuseppe Cardone; Andrii Khrabustovskyi (SIAM J. Math. Anal., 2023)