On Basis Properties of Selfadjoint Opera
β
T.Ya. Azizov; A. Dijksma; L.I. Sukhocheva
π
Article
π
2000
π
Elsevier Science
π
English
β 249 KB
to heinz langer with best wishes on the occasion of his 65th birthday For a selfadjoint operator function we study the existence of a Riesz basis consisting of eigenvectors if not for the whole space then at least for the closed linear span of all the eigenvectors.