The effective Hamiltonian for thin layers with non-Hermitian Robin-type boundary conditions. - Denis I. Borisov; David Krejcirík (Asymptot. Anal., 2012)

Kink scattering from a parity-time-symmetric defect in the ϕ4 model. - Danial Saadatmand; Sergey V. Dmitriev; Denis I. Borisov; Panayotis G. Kevrekidis; Minnekhan A. Fatykhov; Kurosh Javidan (Commun. Nonlinear Sci. Numer. Simul., 2015)

Resonant interaction of ϕ4 kink with PT-symmetric perturbation with spatially periodic gain/loss coefficient. - Danial Saadatmand; Denis I. Borisov; Panayotis G. Kevrekidis; Kun Zhou; Sergey V. Dmitriev (Commun. Nonlinear Sci. Numer. Simul., 2018)

Sequences of closely spaced resonances and eigenvalues for bipartite complex potentials. - Denis I. Borisov; Dmitry A. Zezyulin (Appl. Math. Lett., 2020)