Oskar A. Sultanov, “Asymptotic regimes in oscillatory systems with damped non-resonant perturbations”, Nonlinear Dyn, 112:4 (2024), 2589
Oskar A. Sultanov, “Resonance in Isochronous Systems with Decaying Oscillatory Perturbations”, Qual. Theory Dyn. Syst., 23:S1 (2024)
Oskar A. Sultanov, “Nonlinear resonance in oscillatory systems with decaying perturbations”, DCDS, 2024
Л. А. Калякин, “Асимптотика решения вариационной задачи на большом промежутке”, Матем. заметки, 110:5 (2021), 688–703 ; L. A. Kalyakin, “Asymptotics of the Solution of a Variational Problem on a Large Interval”, Math. Notes, 110:5 (2021), 687–699
Kiselev O.M., “An Asymptotic Structure of the Bifurcation Boundary of the Perturb E D Painleve-2 Equation”, Chaos Solitons Fractals, 151 (2021), 111299
O. A. Sultanov, “Lyapunov Functions and Asymptotics at Infinity of Solutions of Equations that are Close to Hamiltonian Equations”, J Math Sci, 258:1 (2021), 97
О. А. Султанов, “Функции Ляпунова и асимптотика на бесконечности решений уравнений, близких к гамильтоновым”, Дифференциальные уравнения, Итоги науки и техн. Соврем. мат. и ее прил. Темат. обз., 163, ВИНИТИ РАН, М., 2019, 96–107
O. Sultanov, “Lyapunov functions and asymptotic analysis of a complex analogue of the second Painleve equation”, Vii International Conference Problems of Mathematical Physics and Mathematical Modelling, Journal of Physics Conference Series, 1205, IOP Publishing Ltd, 2019, 012056