STECKIN-MARCHARD-TYPE INEQUALITIES FOR SOME DURRMEYER OPERATORS

In this paper, we will derive some Steckin-Marchard-type inequalities for Bernstein-Durrmeyer and Szasz-Durrmeyer operators.

GROUP STRUCTURE OF THE IDEAL Im σ_*^(2k)

Let MOn-2k（BO（2k+1））（k a nonnegative integer） be the unoriented cobordism group of real（2k+1）-plane bundles over closed smooth（n-2k）-dimensional manifolds.