Weak type $(1,1)$ estimates for Riesz transforms of elliptic operators and magnetic Schrödinger operators

El Maati Ouhabaz

Let $M$ be a complete Riemannian manifold and define a magnetic Schrödinger operator $\LL = ({\bf d}+ iA)^*({\bf d}+iA) + V$ where $A$ is a real $1$-differential form in $L^2_{loc}…