
(4.5) 
and 3, where
and The expressions , and are due to Nath (1968) [73], Van der Lubbe (1978) [115] and Nath (1975) [74] respectively. The expressions and are due to Sharma and Gupta (1976) [89].We can write
where is as given in (4.4).
From the unified espression (4.5) it is clear that the measures and are continuous with respect to the parameters and . This allows us to write
and
where "CE" stands for "continuous extension".
In particular, when , we have