The Schur Convexity and Inequalities for a Class of Symmetric Functions
类对称函数的Schur凸性和不等式

For x = (x1, x2,···, xn) ∈ (0,1) and r ∈ {1, 2,···, n}, the symmetric function Fn(x, r) is defined by Fn(x, r) = Fn(x1, x2,···, xn; r) =∏1≤i1