Discreteness of the spectrum for some unbounded Jacobi matrices
General criteria of discreteness of the spectrum for operators associated to positive and unbounded Jacobi matrices are established. These criteria unify well-known previous results on compactness of the resolvent of the above matrices.
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
Bolyai Institute, University of Szeged
Szeged
2007
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| Sorozat: | Acta scientiarum mathematicarum
73 No. 3-4 |
| Kulcsszavak: | Matematika, Jacobi-mátrix |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/16208 |
| Tartalmi kivonat: | General criteria of discreteness of the spectrum for operators associated to positive and unbounded Jacobi matrices are established. These criteria unify well-known previous results on compactness of the resolvent of the above matrices. |
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| Terjedelem/Fizikai jellemzők: | 649-667 |
| ISSN: | 0001-6969 |