Let $\nu$ be a positive measure on a space $Y$ with $\nu(Y) \neq 0$ and let $f_j$ ($j = 1, 2, \dots, n$) be positive $\nu$-integrable functions on $Y$. For some positive real numbers $\alpha_j$ ($j = 1, 2, \dots, n$), $\beta_j$ ($j= 1, 2, \dots, k < n$) and a measurable subset $Y_1$ of $Y$, we have some inequalities. From these results, we refine Hölder's inequality.
Ern Gun Kwon. Kwang Ho Shon. "Refined Hölder's inequality for measurable functions." Proc. Japan Acad. Ser. A Math. Sci. 77 (1) 13 - 15, Jan. 2001. https://doi.org/10.3792/pjaa.77.13