Averaging operators on $C_\infty (X)$
Averaging operators on $C_\infty (X)$
investigated a linear operator T which is supposed to be de- fined on Bnch lgebr A, nd stisfies, for 11 f nd g in A, the identity: T(fT(g)) T(f)T(g).It turns out that very interesting class of operators stisfy this weakened form of the condition that T ssocite with multiplic- tion.Birkhoff …