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2. .

), (1.6) , , ()

(1.5)

(2.2), (1.4), (1.5)

( [51]). (2.1), (1.6) , , (2.2)

(1.4), (1.5) :

.

, (1.4), (1.5) (2.1), (2.2), . . (1.4), (1.5)

(1.6) () (2.1) ,

, (2.5) . ( ) . - (1.6) ,

. . (2.2) (2.3) (1.4), (1.5). , (1.4), . [2]

. :

. , .

(1 6)

( ). , ,

. , , (2.7) (2.2)

(2 8), (2.11) (2 7)

. (2 9) (2 6).

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