Decay estimates for higher order elliptic operators

Hongliang Feng, Avy Soffer, Zhao Wu +1

This paper is mainly devoted to study time decay estimates of the higher-order Schrödinger type operator $H=(-\Delta {)}^m+V(x)$ in ${\mathbf{R}}^n$ for $n>2m$ and $m\in \mathbf{N}$. For…