De Melo, C. A.M. [UNESP]Resende, S. T.2022-04-282022-04-282009-04-10International Journal of Modern Physics A, v. 24, n. 8-9, p. 1669-1673, 2009.0217-751Xhttp://hdl.handle.net/11449/225461We develop a model for spiral galaxies based on a nonlinear realization of the Newtonian dynamics starting from the momentum and mass conservations in the phase space. The radial solution exhibits a rotation curve in qualitative accordance with the observational data. © 2009 World Scientific Publishing Company.1669-1673engDark matterGalactic rotation curvesMathematical modelingTrabalho apresentado em evento10.1142/s0217751x090452002-s2.0-65249176738