@inproceedings{paperid:1063636, author = {Najafi, Hamed}, title = {POSITIVE BLOCK MATRICES}, booktitle = {سومین سمینار نظریه عملگرها و کاربردهای آن}, year = {2017}, location = {مشهد, IRAN}, keywords = {Geometric mean‎; ‎Positive block matrix‎; ‎Completely positive linear map‎.}, }