INVESTIGADORES
TOLOZA Julio Hugo
artículos
Título:
Point mass perturbations of spectral measures
Autor/es:
RAFAEL DEL RIO; LUIS O. SILVA; JULIO H. TOLOZA
Revista:
ROCKY MOUNTAIN JOURNAL OF MATHEMATICS
Editorial:
ROCKY MT MATH CONSORTIUM
Referencias:
Lugar: Tempe, Arizona; Año: 2021 vol. 51 p. 1407 - 1432
ISSN:
0035-7596
Resumen:
Using a generalization of the moment problem and the extremal properties of spectral measures corresponding to the self-adjoint extensions of a regular symmetric operator, we study point mass perturbations of spectral measures. We obtain general results for a wide class of operators and apply them to the analysis of point mass perturbations of spectral measures pertaining to Bessel and generalized Schrödinger operators.
