, , . , :
(4.20)
,
(4.21)
. 4.3 . , , , , . .
. , , , , . , . , , , .
. 4.3, , (4.21).
1 2
(4.22)
(4.23)
, (4.22), (4.23).
1 = , 2 = const .
(4.24)
.
(4.25)
0 = const.
, x. (4.23) (4.25) ,
(4.26)
(4.27)
2 .
, . 4.3. 1 2 , .. , .
(4.28)
D , .
(4.29)
, 1 2 .
, . 1 2
|
|
(4.30)
1 2 0,
(4.31)
, . , , , .
(4.32)
.. . , 1 2.