Astaburuaga MA, Cortés VH, Fernández C, Del Río R. Estabilidad espectral y resonancias para perturbaciones de rango finito y singulares: Spectral stability and resonances for finite rank and singular perturbations. CUBO [Internet]. 2025 Oct. 30 [cited 2025 Nov. 3];:505–522. Available from: https://cubo.ufro.cl/index.php/cubo/article/view/4136