Budak, HüseyinSarıkaya, Mehmet Zeki2023-07-262023-07-2620220970-12492320-3110https://hdl.handle.net/20.500.12684/13593In this paper, we establish some generalized Opial type inequalities in two independent variables for two functions. Moreover we give refinement of Opial inequality in two variables obtained by G. S. Yang in 1982.eninfo:eu-repo/semantics/closedAccessArticle3711122-s2.0-85129965055WOS:000819472300001Q4Q4