“…In the literature of inequalities, Jensen inequality is of pivotal importance because other classical inequalities, eg, Ky‐Fan, Hölder, Levinson's, Beckenbach‐Dresher, Minkowski's, arithmetic‐geometric, and Young's inequalities, can be deduced from this inequality. Also, this inequality has been applied to solve many problems in different fields of science and technology, eg, engineering, mathematical statistics, financial economics, and computer science, and an extensive literature exists regarding its generalizations, refinements, extensions, converses, etc …”