A Theorem on Orthogonal Functions with an Application to Integral Inequalities
A Theorem on Orthogonal Functions with an Application to Integral Inequalities
By a non-trivial solution we mean a solution which is not identically zero, t The case in which Df¿0 is compatible with the theorem, since in that case the equation ( 15) admits no non-trivial solution, and the inequality (12) admits a solution (14).