. 1- .
.
(1)
- .
, (2)
1, 2 - ; n1, n2 - , , "1" "2"; k - .
() (II) (III):
.
II III
, . , , , - . . .
10-20%- . ϳ , . . , .
ó , , .
, (3)
t - ; 0 - ; - .
a ' L
. (4)
(+) (-) . 
, 
, 
. - ( ). .
. 20 20%- . ' - ' .
20 3 1 - .
, . , . , .
5, 10, 15, 20, 25 1,5 .
. (a0 - a¥), a0 - ; a¥ - , -12,8.
(at - a¥), at - t.
. (5)
(a0) , 
, 
ln(a0 - a¥)
.
| t, | at, | (at - a¥), | ln(at - a¥) | k, |
˳: [24. . 322-360; 21, . 217-242, 248-252; 22, . 319-350).
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