In the present paper we establish new inequalities of Ostrowski and Grüss type for triple integrals involving three functions and their partial derivatives. The discrete Ostrowski and Grüss type inequalities for triple sums are also given.
Pachpatte, B. G. (2007). Some New Ostrowski and Grüss Type Inequalities. Tamkang Journal of Mathematics, 38(2), 111-120. https://www.airitilibrary.com/Article/Detail?DocID=00492930-200706-38-2-111-120-a
Pachpatte, B. G. (2007). New Ostrowski Type Inequality for Triple Integrals. Tamkang Journal of Mathematics, 38(3), 253-259. https://www.airitilibrary.com/Article/Detail?DocID=00492930-200709-38-3-253-259-a