A comment on coposinormal operators
| Autor: | Henry Crawford Rhaly Jr. |
|---|---|
| Jazyk: | English<br />French<br />Italian |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Le Matematiche, Vol 68, Iss 1, Pp 83-86 (2013) |
| Druh dokumentu: | article |
| ISSN: | 0373-3505 2037-5298 |
| Popis: | Hyponormal operators are necessarily posinormal, but they need not be coposinormal. Coposinormality can nevertheless sometimes be an aid in determining hyponormality. This idea is applied to coposinormal factorable matrices whose interrupter is diagonal. Examples are given, including some Toeplitz matrices and some terraced matrices associated with the logistic sequence. |
| Databáze: | Directory of Open Access Journals |
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