پديدآورندگان :
Ghaemi Mohammad Bagher mghaemi@iust.ac.ir School of Mathematics, Iran University of Science and Technology, Narmak, Tehran, Iran; , Gharakhanlu Nahid nahid@mathdep.iust.ac.ir School of Mathematics, Iran University of Science and Technology, Narmak, Tehran, Iran, Department of Mathematics, Ghiaseddin Jamshid Kashani Institute of Higher Education, Abyek, Iran;
كليدواژه :
Joint convexity , joint concavity , trace functions , operator monotone functions , perspective functions
چكيده فارسي :
In this paper, we are concerned with the joint concavity and convexity of some known trace functions. The concepts and theorems on operator monotone functions and perspective functions play an essential role in the method of proving our main results.
