<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Menkad. S</style></author><author><style face="normal" font="default" size="100%">Seddik. A</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">OPERATOR INEQUALITIES AND NORMAL OPERATORS</style></title><secondary-title><style face="normal" font="default" size="100%">Banach J. Math. Anal.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><volume><style face="normal" font="default" size="100%">6</style></volume><pages><style face="normal" font="default" size="100%">204-210</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">In the present paper, taking some advantages oered by the con-&lt;br&gt;text of nite dimensional Hilbert spaces, we shall give a complete characteriza-&lt;br&gt;tions of certain distinguished classes of operators (self-adjoint, unitary re ec-&lt;br&gt;tion, normal) in terms of operator inequalities. These results extend previous&lt;br&gt;characterizations obtained by the second author.</style></abstract></record></records></xml>