MathDB
Chisinau MO p130 1976 X |f (x) - f (y) | <= | x - y|^a , a>1. constant

Source:

March 16, 2021
algebrafunctionfunctional

Problem Statement

Prove that the function f(x)f (x) satisfying the relation f(x)f(y)xya|f (x) - f (y) | \le | x - y|^a for any real numbers x,yx, y and some number a>1a> 1 is constant.