%0 Journal Article %A Moslehian, M.S. %A Nabavi Sales, S.M.S. %A Najafi, H. %T On the binary relation $ {⩽}_{u}$ on self-adjoint Hilbert space operators %J Comptes Rendus. Mathématique %D 2012 %P 407-410 %V 350 %N 7-8 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2012.04.004/ %R 10.1016/j.crma.2012.04.004 %G en %F CRMATH_2012__350_7-8_407_0