BOHMAN-KOROVKIN-WULBERT OPERATORS FROM A FUNCTION SPACE INTO A COMMUTATIVE C*-ALGEBRA FOR SPECIAL TEST FUNCTIONS

Dedicated to Professor Satoru Igari on his sixtieth birthday

Abstract

We completely determine a class of Bohman-Korovkin-Wulbert operators from a function space on a compact Hausdorff space into the Banach space of continuous complex-valued functions on another space with respect to the special test functions.