“…Recently the fractal theory has received a significant attention (see, e.g., [1,10,5,7,8,9,11,12]). Mo et al [4] proved the following analogue of the Hermite-Hadamard inequality (1.4) for generalized convex functions: Let An analogue in the fractal set R α of the classical Hölder's inequality has been established by Yang [13], which is asserted by the following lemma.…”