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The deficiency index problem for powers of ordinary differential expressions
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
Springer
1977
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/BFb0064277 http://cds.cern.ch/record/1690836 |