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Necessary conditions for similarity of an operator to a self-adjoint one

✍ Scribed by M. M. Faddeev

Publisher
Springer US
Year
1992
Tongue
English
Weight
239 KB
Volume
26
Category
Article
ISSN
0016-2663

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πŸ“œ SIMILAR VOLUMES

On half-line spectra for a class of non-
On half-line spectra for a class of non-self-adjoint Hill operators
✍ Kwang C. Shin πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 102 KB πŸ‘ 1 views

## Abstract In 1980, Gasymov showed that non‐self‐adjoint Hill operators with complex‐valued periodic potentials of the type $ V(x) = \sum ^{\infty} \_{k=1} a\_{k} e^{ikx} $, with $ \sum ^{\infty} \_{k=1} \vert a\_{k} \vert < \infty $, have spectra [0, ∞). In this note, we provide an alternative an