paper

General Solutions of the Second-Kind Abel Equation

arXiv:2512.20656

Abstract

The general solutions with free variable to the second-kind Abel equation, a nonlinear ordinary differential equation that has remained unsolved for nearly two centuries, are presented for the first time by using elementary quadrature method.

arXiv commentIn both v1 and v2, Theorem 1 is incorrect, so I have decided to withdraw this article