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@article{AFM_1963_316-335_a6, author = {Toivo Nieminen}, title = {On the norm of a linear operator in a {Hilbert} space}, journal = {Annales Fennici Mathematici}, publisher = {mathdoc}, volume = {316-335}, year = {1963}, doi = {10.5186/aasfm.1963.329}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1963.329/} }
Toivo Nieminen. On the norm of a linear operator in a Hilbert space. Annales Fennici Mathematici, 316-335 (1963). doi : 10.5186/aasfm.1963.329. http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1963.329/
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