5 citations · 5 across the 2 of their papers we have counts for
2 papers
math.FA2015★ 5 cited
Extended spectrum and extended eigenspaces of quasi-normal operators
Gilles Cassier, Hasan Alkanjo
We say that a complex number is an extended eigenvalueof a bounded linear operator T on a Hilbert space H if there exists anonzero bounded linear operator X acting on H, called…
math.FA2012
On extended eigenvalues and extended eigenvectors of truncated shift
Hasan Alkanjo
We give a complete description of the set of extended eigenvectors of truncated shifts defined on the model spaces K_u := H^2\ominus uH^2, in the case of u is a Blaschke product.