Algebraic Sum of Unbounded Normal Operators and the Square Root Problem of Kato

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/67464We prove that the algebraic sum of unbounded normal operators satisfies the square root problem of Kato under appropriate hypotheses. As application, we consider perturbed Schrodinger operators.9 pagesFunctional Analysis47B44; 47B25; 47B15; 47D05Algebraic Sum of Unbounded Normal Operators and the Square Root Problem of Katotext