文摘
In this paper the authors give a brief historical remark on Edmundson–Madansky and Lah–Ribarič inequalities, which are both special cases of the same inequality, and unify them under the name of Edmundson–Lah–Ribarič inequality. Furthermore, the authors also give a Levinson’s type generalization of the Edmundson–Lah–Ribarič inequality, as well as some refinements of the obtained results by constructing certain exponentially convex functions. Mathematics Subject Classification Primary 60E15 Secondary 26A51 26E60