Inserted: 20 dec 2014
Last Updated: 23 dec 2019
Journal: SIAM Journal on Mathematical Analysis
Given a bounded autonomous vector field $b \colon \mathbb R^d \to \mathbb R^d$, we study the uniqueness of bounded solutions to the initial value problem for the related transport equation \[ \partial_t u + b \cdot \nabla u= 0. \] We are interested in the case where $b$ is of class BV and it is nearly incompressible. Assuming that the ambient space has dimension $d=2$, we prove uniqueness of weak solutions to the transport equation.