1 citations · 1 across the 3 of their papers we have counts for
5 papers
Random Sturm-Liouville Operators with Generalized Point Interactions
David Damanik, Rafael del Rio, Asaf L. Franco
In this work we study the point spectra of selfadjoint Sturm-Liouville operators with generalized point interactions, where the two one-sided limits of the solution data are relate…
Random Sturm-Liouville Operators with Point Interactions
R. del Rio, A. L. Franco
We study invariance for eigenvalues of families of selfadjoint Sturm-Liouville operators with local point interactions. In a probabilistic setting, we show that a point is either a…
Point mass perturbations of spectral measures
Rafael del Rio, Luis O. Silva, Julio H. Toloza
Using a generalization of the moment problem and the extremal properties of spectral measures corresponding to the selfadjoint extensions of a regular symmetric operator, we study…
On the density of polynomials under perturbations of the measure
Rafael del Rio, Luis O. Silva
This paper presents an erroneous proof that if the polynomials are dense in , then they are dense in where is a measure supported on…
Random Sturm Liouville Operators
Rafael del Rio
Selfadjoint Sturm-Liouville operators on with random potentials are considered and it is proven, using positivity conditions, that for almost every the operato…