Media type: E-Article Title: A refinement of von Neumann—Heinz theorem and related inequalities Contributor: Gevorgyan, L. Z. imprint: Allerton Press, 2008 Published in: Journal of Contemporary Mathematical Analysis Language: English DOI: 10.3103/s1068362308020027 ISSN: 1068-3623; 1934-9416 Keywords: Applied Mathematics ; Control and Optimization ; Analysis Origination: Footnote: