A Diaz-Metcalf type inequality for positive linear maps and its applications
The electronic journal of linear algebra, Tome 22 (2011), pp. 179-190.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: We present a Diaz-Metcalf type operator inequality as a reverse Cauchy-Schwarz inequality and then apply it to get some operator versions of Pólya-Szeg$\ddot o$'s, Greub-Rheinboldt's, Kantorovich's, Shisha-Mond's, Schweitzer's, Cassels' and Klamkin-McLenaghan's inequalities via a unified approach. We also give some operator Grüss type inequalities and an operator Ozeki- Izumino-Mori-Seo type inequality. Several applications are included as well.
Classification : 46L08, 26D15, 46L05, 47A30, 47A63
Keywords: diaz-metcalf type inequality, reverse Cauchy-Schwarz inequality, positive map, ozeki-izumino-Mori-seo inequality, operator inequality
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     author = {Moslehian, Mohammad Sal and Nakamoto, Ritsuo and Seo, Yuki},
     title = {A {Diaz-Metcalf} type inequality for positive linear maps and its applications},
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Moslehian, Mohammad Sal; Nakamoto, Ritsuo; Seo, Yuki. A Diaz-Metcalf type inequality for positive linear maps and its applications. The electronic journal of linear algebra, Tome 22 (2011), pp. 179-190. http://geodesic.mathdoc.fr/item/ELA_2011__22__a66/