| Autor: |
Hassan Azad, Abdallah Laradj, Muhammad Tahir Mustafa |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Electronic Journal of Differential Equations, Vol 2017, Iss 22,, Pp 1-21 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
1072-6691 |
| Popis: |
We study algebraic and analytic aspects of self-adjoint operators of order four or higher with polynomial coefficients. As a consequence, a systematic way of constructing such operators is given. The procedure is applied to obtain many examples up to order 8; similar examples can be constructed for all even order operators. In particular, a complete classification of all order 4 operators is given. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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