From Lcbesgue in France, and from Hardy and. Littlewood in ...... 1Am>0 for m=n.
In particular,. (i) the functions I 0m(x) I2 are all integrable over (a, b);. (ii) no (5m(x)
can vanish identically (for that would imply A,,,=0). If in addition ...... of (1.6) is
often called the convolution, or composition, of the functions f and g. Obviously I (f
... 
