CC BY-NC-ND 3.0 UnportedJi, P.Peron, T.K.D.M.Rodrigues, F.A.Kurths, J.2020-08-012020-08-012014https://doi.org/10.34657/3896https://oa.tib.eu/renate/handle/123456789/5267Low-dimensional behavior of large systems of globally coupled oscillators has been intensively investigated since the introduction of the Ott-Antonsen ansatz. In this report, we generalize the Ott-Antonsen ansatz to second-order Kuramoto models in complex networks. With an additional inertia term, we find a low-dimensional behavior similar to the first-order Kuramoto model, derive a self-consistent equation and seek the time-dependent derivation of the order parameter. Numerical simulations are also conducted to verify our analytical results.enghttps://creativecommons.org/licenses/by-nc-nd/3.0/530large systemsOtt-Antonsen ansatzKuramoto modelArticle