..., Degenerate exponential integral Degenerate incomplete gamma function Inequality 26D07 26D20 33Bxx The classical exponential integral function is defined by any of the following equivalent definitions [ 1 , p. 228] (3) E ( z ) = ∫ z ∞ e − t t d t...

... Fractional integrals, m -invex primary 26A51 secondary 26A33 26D07 26D10 26D15 33E12 The following double inequality is known as Hermite–Hadamard inequality. Theorem 1.1. Let  f : I ⊆ ℝ → ℝ  be a convex mapping on an interval  I...