The main result of this paper is that a 2-convex Q k -translator with principal curvatures in the cone Γ k+1 is convex. This is analogous to the theorems by Spruck-Xiao [SX17] and Spruck-Sun [SS19] on Mean Curvature Flow.In addition, we prove interior gradient and second order estimates for Q kflow and Q k -translators in R n+1 .
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