پديدآورندگان :
Shah hosseini Mohsen shahhosseini@yahoo.com Department of Mathematics, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran;
mohsen${\_}$ , Erfanian Omidvar Mohsen erfanian@mshdiau.ac.ir Department of Mathematics, Mashhad Branch,
Islamic Azad University, Mashhad, Iran;
كليدواژه :
Bounded linear operator , Hilbert space , norm inequality , numerical radius
