@article{paperid:1041237, author = {Sal Moslehian, Mohammad and Dehghani, Mahdi}, title = {Operator convexity in Krein spaces}, journal = {New York Journal of Mathematics}, year = {2014}, volume = {20}, number = {1}, month = {January}, issn = {1076-9803}, pages = {133--144}, numpages = {11}, keywords = {Indefinite inner product;J-contraction;J -selfadjoint operator; Julia operator; Krein space; Krein-operator convex function}, }