Mean curvature flow of Killing graphs
  We study a Neumann problem related to the evolution of graphs under mean curvature flow in Riemannian manifolds endowed with a Killing vector field. We prove that in a particular case these graphs converge to a bounded minimal graph which contacts the cylinder over the domain orthogonally along its boundary. 
Jorge H. Lira, Gabriela A. Wanderley
math.DG