Sharp inequalities of Simpson type and Ostrowski type

Bounds for the Chebyshev functional and applications to the weighted integral formulae

“…For specific function, the polynomial of the second degree we obtain the same inequality as in paper [15].…”

On sharp inequalities of Simpson type and Ostrowski type in two independent variables

“…In a recent paper [1], Ujević has proved the following two sharp inequalities of Simpson type and Ostrowski type in one variable:…”

“…On the Simpson inequality and Ostrowski inequality, we refer the reader to [2][3][4][5][6][7][8][9][10][11][12]. In this paper, we derive two sharp inequalities in two independent variables.…”

Error bounds in approximating the Riemann–Stieltjes integral of Cn+1-class integrands and nonsmooth integrators

“…For a comprehensive recent collection of works related to Ostrowski's inequality, see the book [30], the papers [2][3][4][5][6][7][8][9][10][11]33,39,41,43].…”