, (7.1)
, ,, , , ( ) .
, , ,
(7.1) .
(7.1a)
F .
, .
.
(7.l) ( ):
(7.2)
, ,
, (7.2)
.
, (7.3)
() ( ) (7.2).
(7.3), . , .
7.1. , :
1) ;
2)
; , (7.3),
.
- . , ,
7.2. u* ** . , , , , 7.1 .
, , , (. (6.12) 6.7), . , (7.3) :
(7.4)
, , (7.4) , .. (7.2) - . , (7.3) (7.4) (7.1), , , (7.2). , , (7.1) - .
(7.2). , , - .