2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/114120In this paper we characterize compactness of the canonical solution operator to d-bar on weigthed $L^2$ spaces on $\mathbb C.$ For this purpose we consider certain Schrödinger operators with magnetic fields and use a condition which is equivalent to the property that these operators have compact resolvents. We also point out what are the obstructions in the case of several complex variables.9 pagesComplex VariablesAnalysis of PDEs32W05; 35J10text