A source of counterexamples in operator theory and how to construct them (Q1187381)
From MaRDI portal
 | This is the item page for this Wikibase entity, intended for internal use and editing purposes. Please use this page instead for the normal view: A source of counterexamples in operator theory and how to construct them |
scientific article; zbMATH DE number 39257
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A source of counterexamples in operator theory and how to construct them |
scientific article; zbMATH DE number 39257 |
Statements
A source of counterexamples in operator theory and how to construct them (English)
0 references
23 July 1992
0 references
The author describes various examples to show that the ratio \(\|| A|-| B|\|/\| A-B\|\) is not bounded for all operators on Hilbert spaces. Here \(| A|=(A^*A)^{1/2}\).
0 references
operator Lipschitz condition
0 references
operator modulus
0 references
Hilbert spaces
0 references
0 references
