. 2 . .
:
Ij(tj):
:
25 :
(. 9):
9 -
:
. , . .
:
.
(7.1)
, (7.1)
(7.2)
(7.1) (7.2) . , .
(7.2) ,
(7.3)
.
(7.3) . (7.3)
(7.4)
(7.5)
(7.5)
(7.6)
(7.6), (7.4)
(7.7)
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(7.7) . (7.4) -
(7.7).
. 7.1.
, . , . . (6.15)
|
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(7.8)
.
(7.8) , , .
(6.16)
(7.9)
(7.7) , (7.3)
. (7.10)
, .