“…P,, is the so-called Kantorovie operator. In the last years approximation by Kantorovie operators was an object of investigation for several authors, e. g. GRUNIgMANN [1], MAIER [4], Mi)LLER [5], RIEMENSCHNEIDER [9]. As is easily seen, B, and P, are connected by the relation After compiling elementary properties of Q, in section 2, in section 3 we shall consider the restriction of Q, onto ~g [0,1].…”