Higher Derivations and Universal Differential Operators
✍ Scribed by R. Hart
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 118 KB
- Volume
- 184
- Category
- Article
- ISSN
- 0021-8693
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## Abstract We derive Lieb–Thirring inequalities for the Riesz means of eigenvalues of order __γ__ ≥ 3/4 for a fourth order operator in arbitrary dimensions. We also consider some extensions to polyharmonic operators, and to systems of such operators, in dimensions greater than one. For the critica
## Abstract Higher even order linear differential operators with unbounded coefficients are studied. For these operators the eigenvalues of the characteristic polynomials fall into distinct classes or clusters. Consequently the spectral properties, deficiency indices and spectra, of the underlying
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