Document Type : Research Paper
Department of Mathematics, Guangdong University of Education,Guangzhou , Guangdong , P.R.China
Department of Mathematics, Guangdong University of Education
By introducing independent parameters and applying the weight coefficients, we use Hermite-Hadamard's inequality and give a more accurate Hardy-Hilbert's inequality in the whole plane with a best possible constant factor. Furthermore, the equivalent forms, a few particular cases and the operator expressions are considered.