| Autor: |
Jamel Ben Amara |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Electronic Journal of Differential Equations, Vol 2016, Iss 246,, Pp 1-11 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
1072-6691 |
| Popis: |
Systems-conjugate points were introduced and studied by Barrett [3] in relation with the self-adjoint fourth order differential equation $$ (r(x)y'')''-(q(x)y')'= p(x)y, $$ where r(x)>0, p(x)>0 and q=0. In this paper we extend some of his results to more general cases, when q(x) is free of sign restrictions. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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