On non-selfadjoint perturbations of infinite band Schrödinger operators and Kato method

L. Golinskii, S. Kupin

Let $ H_0=-\dd+V_0 $ be a multidimensional Schrödinger ope\-rator with a real-valued potential and infinite band spectrum, and $H=H_0+V$ be its non-selfadjoint perturbation defined…