@article{paperid:1086959, author = {Taghavi, Yasaman and Kayvanfar, Saeed and Parvizi, Mohsen}, title = {On Baer’s Theorem and Its Generalizations}, journal = {Mediterranean Journal of Mathematics}, year = {2021}, volume = {18}, number = {6}, month = {October}, issn = {1660-5446}, keywords = {Schur’s theorem; Baer’s theorem; hypercenter; nilpotent group.}, }