A Fourth Order Curvature Flow on a CR 3-manifold

Shu-Cheng Chang, Jih-Hsin Cheng, Hung-Lin Chiu

Let $({\mathbf{M}}^3,J,{\theta }_0)$ be a closed pseudohermitian 3-manifold. Suppose the associated torsion vanishes and the associated $Q$-curvature has no kernel part with respect to t…