𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Examples of symmetric differential operators with infinite deficiency indices on the line

✍ Scribed by Yu. B. Orochko


Publisher
Springer US
Year
1994
Tongue
English
Weight
265 KB
Volume
28
Category
Article
ISSN
0016-2663

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Deficiency indices and spectral theory o
✍ Horst Behncke; Don Hinton πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 English βš– 341 KB

## Abstract We investigate the spectral theory of a general third order formally symmetric differential expression of the form acting in the Hilbert space ℒ︁^2^~__w__~ (__a__ ,∞). A Kummer–Liouville transformation is introduced which produces a differential operator unitarily equivalent to __L__

On the deficiency index of even order sy
✍ Marian P. Roque; Bernd Schultze πŸ“‚ Article πŸ“… 2011 πŸ› John Wiley and Sons 🌐 English βš– 96 KB

## Abstract It shall be shown that for every __n__, \documentclass{article}\usepackage{amssymb}\pagestyle{empty}\begin{document}$k \in \mathbb {N}$\end{document} with __n__ β©½ __k__ < 2__n__, there exist real symmetric differential expressions __M__ of order 2__n__ with nonempty essential spectrum s