Mathematical Sciences Classification System
26Dxx - Inequalities 
{For maximal function inequalities, see  42B25; for functional inequalities, see  39B72; for probabilistic inequalities, see  60E15}
                    - 
                            26D05Inequalities for trigonometric functions and polynomials
 - 
                            
                            26D07Inequalities involving other types of functions
 - 
                            
                            26D10Inequalities involving derivatives and differential and integral operators
 - 
                            
                            26D15Inequalities for sums, series and integrals
 - 
                            
                            26D20Other analytical inequalities
 - 
                            26D99None of the above, but in this section